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G protein

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bind to a domain of the GPCR located outside the cell, and an intracellular GPCR domain then in turn activates a particular G protein. Some active-state GPCRs have also been shown to be "pre-coupled" with G proteins, whereas in other cases a collision coupling mechanism is thought to occur. The G
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Activation cycle of G-proteins (pink) by a G-protein-coupled receptor (GPCR, light blue) receiving a ligand (red). Ligand binding to GPCRs (2) induces a conformation change that facilitates the exchange of GDP for GTP on the α subunit of the heterotrimeric complex (3-4). Both GTP-bound Gα in the
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Baltoumas FA, Theodoropoulou MC, Hamodrakas SJ (June 2013). "Interactions of the α-subunits of heterotrimeric G-proteins with GPCRs, effectors and RGS proteins: a critical review and analysis of interacting surfaces, conformational shifts, structural diversity and electrostatic potentials".
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The Nobel Assembly at the Karolinska Institute decided to award the Nobel Prize in Physiology or Medicine for 1994 jointly to Alfred G. Gilman and Martin Rodbell for their discovery of "G-proteins and the role of these proteins in signal transduction in cells". 10 October
248:. They found that when adrenaline binds to a receptor, the receptor does not stimulate enzymes (inside the cell) directly. Instead, the receptor stimulates a G protein, which then stimulates an enzyme. An example is 3581: 3444: 621:
to the alpha (α) subunit found in heterotrimers, but are in fact monomeric, consisting of only a single unit. However, like their larger relatives, they also bind GTP and GDP and are involved in
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active form and the released Gβγ dimer can then go on to stimulate a number of downstream effectors (5). When the GTP on Gα is hydrolyzed to GDP (6) the original receptor is restored (1).
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dimer and the receptor as a whole. However, models which suggest molecular rearrangement, reorganization, and pre-complexing of effector molecules are beginning to be accepted. Both G
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In order to associate with the inner leaflet of the plasma membrane, many G proteins and small GTPases are lipidated, that is, covalently modified with lipid extensions. They may be
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Yuen JW, Poon LS, Chan AS, Yu FW, Lo RK, Wong YH (June 2010). "Activation of STAT3 by specific Galpha subunits and multiple Gbetagamma dimers".
1880: 4927: 4578: 2946: 2694: 2586: 101:(GDP). When they are bound to GTP, they are 'on', and, when they are bound to GDP, they are 'off'. G proteins belong to the larger group of 1232:. These proteins are homologous to the alpha (α) subunit found in heterotrimers, but exist as monomers. They are small (20-kDa to 25-kDa) 184:
that finally results in a change in cell function. G protein-coupled receptors and G proteins working together transmit signals from many
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All eukaryotes use G proteins for signaling and have evolved a large diversity of G proteins. For instance, humans encode 18 different G
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Tolkovsky AM, Levitzki A (1978). "Mode of coupling between the beta-adrenergic receptor and adenylate cyclase in turkey erythrocytes".
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subunits. These proteins accelerate the hydrolysis of GTP to GDP, thus terminating the transduced signal. In some cases, the effector
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of the proteins' structures). These are involved in control of cell cytoskeleton remodeling, and thus in regulating cell migration.
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Sprang SR, Chen Z, Du X (2007). "Structural Basis of Effector Regulation and Signal Termination in Heterotrimeric Gα Proteins".
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Khafizov K, Lattanzi G, Carloni P (June 2009). "G protein inactive and active forms investigated by simulation methods".
534:. It is estimated that about 30% of the modern drugs' cellular targets are GPCRs." The human genome encodes roughly 800 5142: 3730: 3669: 2617: 713: 4920: 4636: 3078: 2622: 1911: 1533: 874: 772: 550: 1094:. The Inositol Phospholipid Dependent Pathway is used as a signal transduction pathway for many hormones including: 696:. They behave differently in the recognition of the effector molecule, but share a similar mechanism of activation. 3208: 720:
subunit in the traditional view of heterotrimeric GPCR activation. This exchange triggers the dissociation of the G
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to its interior. Their activity is regulated by factors that control their ability to bind to and hydrolyze
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may possess intrinsic GAP activity, which then can help deactivate the pathway. This is true in the case of
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Different types of heterotrimeric G proteins share a common mechanism. They are activated in response to a
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in the GPCR, exchanging GDP for GTP, and dissociating in order to activate other proteins in a particular
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molecules in cells. "Malfunction of GPCR signaling pathways are involved in many diseases, such as
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Nobel prizes have been awarded for many aspects of signaling by G proteins and GPCRs. These include
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for their discovery of "G-proteins and the role of these proteins in signal transduction in cells".
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beta-gamma complex. Beta and gamma subunits of G-protein are shown by blue and red, respectively.
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Structural basis of effector regulation and signal termination in heterotrimeric Galpha proteins
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Small GTPases, also known as small G-proteins, bind GTP and GDP likewise, and are involved in
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complexes sometimes also have active functions. Examples include coupling to and activating
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inside cells, and are involved in transmitting signals from a variety of stimuli outside a
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Syrovatkina, Viktoriya; Alegre, Kamela O.; Dey, Raja; Huang, Xin-Yun (25 September 2016).
542:. Approximately 150 of the GPCRs found in the human genome still have unknown functions. 8: 5362: 5271: 5254: 4940: 4746: 4563: 3540: 3413: 2324: 1229: 1118: 976: 954: 938: 878: 644: 622: 399: 267: 2034: 1562: 1141: 5013: 4905: 4679: 4144: 2911: 2563: 2223: 2196: 2101: 2053: 2018: 1969: 1936: 1874: 1822: 1797: 1734: 1709: 1582: 1497: 1470: 1411: 1386: 1202: 892: 538:, which detect photons of light, hormones, growth factors, drugs, and other endogenous 523: 495: 2163: 1338: 5121: 3818: 2834: 2790: 2228: 2177: 2167: 2136: 2093: 2058: 1974: 1956: 1917: 1907: 1862: 1852: 1827: 1775: 1739: 1574: 1529: 1502: 1451: 1416: 1342: 1307: 901:– Inhibits the synthesis and release of GH (somatotropic cells of anterior pituitary) 888: 851:. cAMP can then act as a second messenger that goes on to interact with and activate 848: 808: 803:
GAPs do not have catalytic residues (specific amino acid sequences) to activate the G
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Hurowitz EH, Melnyk JM, Chen YJ, Kouros-Mehr H, Simon MI, Shizuya H (April 2000).
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Proceedings of the National Academy of Sciences of the United States of America
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Boltz HH, Sirbu A, Stelzer N, de Lanerolle P, Winkelmann S, Annibale P (2022).
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during the fasting state, when body is under metabolic duress. It stimulates
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inhibits the production of cAMP from ATP. e.g. somatostatin, prostaglandins
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pathway. The specific mechanisms, however, differ between protein types.
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and resynthesized in the body, for use as a store and source of energy.
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is used as a signal transduction pathway for many hormones including:
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Receptor-activated G proteins are bound to the inner surface of the
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Heterotrimeric G proteins located within the cell are activated by
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TSH – Induces the synthesis and release of a small amount of T4 (
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Prominent examples include (in chronological order of awarding):
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Neves SR, Ram PT, Iyengar R (May 2002). "G protein pathways".
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deficiencies of intracellular signaling peptides and proteins
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Clapham DE, Neer EJ (1997). "G protein beta gamma subunits".
1283: 192:, and other signaling factors. G proteins regulate metabolic 156:. In addition, the beta and gamma subunits can form a stable 2121:
The International Journal of Biochemistry & Cell Biology
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Syrovatkina V, Alegre KO, Dey R, Huang XY (September 2016).
1471:"The Impact of Membrane Protein Diffusion on GPCR Signaling" 220:, which in turn regulate diverse systemic functions such as 4537: 4493: 4481: 4466: 4432: 4427: 4412: 4395: 4390: 4385: 4373: 4368: 4363: 4353: 4329: 4324: 4319: 4314: 4216: 3679: 3664: 3449: 3389: 3384: 3379: 3374: 3313: 3308: 3152: 3125: 3120: 3033: 3028: 3023: 3018: 3013: 2990: 2985: 2980: 2975: 2970: 2921: 2916: 2906: 2541: 2536: 2531: 1710:"G protein signaling in the parasite Entamoeba histolytica" 910: 898: 884: 112:
There are two classes of G proteins. The first function as
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Digby GJ, Lober RM, Sethi PR, Lambert NA (November 2006).
855:(PKA). PKA can phosphorylate a myriad downstream targets. 593:
G protein can refer to two distinct families of proteins.
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region. This is an alternate form of regulation for the G
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G protein-coupled inwardly-rectifying potassium channels
931:– Stimulates the synthesis and release of a majority of 2197:"Biological functions of hCG and hCG-related molecules" 2075: 1896:
Progress in Molecular Biology and Translational Science
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and are made up of alpha (α), beta (β), and gamma (γ)
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Royal Swedish Academy of Sciences (10 October 2012).
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and starting a new cycle. A group of proteins called
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protein. They work instead by lowering the required
1791: 1789: 3587:Sh2 domain-containing protein tyrosine phosphatase 1521: 1433: 1361:"Seven Transmembrane Receptors: Robert Lefkowitz" 1175:are involved in Rho family GTPase signaling (see 947:– Stimulates follicular development in women; or 119:(small G-proteins), while the second function as 5354: 1786: 1598: 1596: 1384: 1240:). This family of proteins is homologous to the 1848:Cell signaling : principles and mechanisms 1707: 1548: 1385:Qin K, Dong C, Wu G, Lambert NA (August 2011). 791:-beta, which possesses GAP activity within its 2288: 2118: 1750: 1603:The Nobel Prize in Physiology or Medicine 1994 887:– Stimulates the synthesis and release of GH ( 126:. The latter class of complexes is made up of 4921: 4630: 3738: 2695:Intracellular signaling peptides and proteins 2679: 2274: 1893: 1593: 1144:– Induces Aldosterone synthesis and release ( 1105:/AVP) – Induces the synthesis and release of 979:in the intestines, bones, kidneys, and brain) 294:, and consequent metabolic processes such as 2153: 2112: 2069: 2010: 1327:Annual Review of Pharmacology and Toxicology 1277: 1127:– Induces the synthesis and release of TSH ( 965:(PTH1) in the kidneys and bones, or via the 767:activity, allowing it to re-associate with G 676:subunits. There are four main families of G 1542: 1324: 4928: 4914: 4637: 4623: 3745: 3731: 3582:Receptor-like protein tyrosine phosphatase 2686: 2672: 2370:Insulin-like growth factor binding protein 2281: 2267: 1898:. Vol. 133. Elsevier. pp. 1–11. 1879:: CS1 maint: location missing publisher ( 1701: 975:– Decreases blood calcium levels (via the 913:– Stimulates the synthesis and release of 724:subunit (which is bound to GTP) from the G 565:Sequence relationship among the 18 human G 3183:Cyclin-dependent kinase inhibitor protein 2251:at the U.S. National Library of Medicine 2222: 2212: 2052: 2042: 1968: 1821: 1733: 1496: 1486: 1427: 1410: 1380: 1378: 1301: 1117:); Induces vasoconstriction (V1 Cells of 3690:Phosphatidylethanolamine binding protein 3326:Interleukin-1 receptor associated kinase 2738:Ca2+/calmodulin-dependent protein kinase 1894:Stewart, Adele; Fisher, Rory A. (2015). 763:the attached GTP to GDP by its inherent 654: 560: 259:. For this discovery, they won the 1994 236:G proteins were discovered in 1980 when 63: 53: 38: 1633:Nobel Assembly at Karolinska Institutet 1513: 1244:and is also called the Ras superfamily 14: 5355: 3445:Focal adhesion protein-tyrosine kinase 2728:Intracellular calcium-sensing proteins 2201:Reproductive Biology and Endocrinology 1708:Bosch DE, Siderovski DP (March 2013). 1519: 1462: 1375: 1318: 961:levels. This is accomplished via the 814: 387:, which produces the second messenger 4909: 4618: 3726: 2667: 2262: 1714:Experimental & Molecular Medicine 1236:that bind to guanosine triphosphate ( 1064:phosphatidylinositol 4,5-bisphosphate 484:Nobel Prize in Physiology or Medicine 457:Nobel Prize in Physiology or Medicine 442:Nobel Prize in Physiology or Medicine 415:Nobel Prize in Physiology or Medicine 396:Nobel Prize in Physiology or Medicine 377:Nobel Prize in Physiology or Medicine 350:Nobel Prize in Physiology or Medicine 307:Nobel Prize in Physiology or Medicine 261:Nobel Prize in Physiology or Medicine 244:investigated stimulation of cells by 5326: 2194: 1851:. Bruce Mayer, T. Pawson. New York. 1528:. San Francisco: Benjamin Cummings. 545:Whereas G proteins are activated by 494:for their work on G protein-coupled 5175:Transcription preinitiation complex 1844: 286:, the enzymes that trigger protein 182:cascade of further signaling events 79:guanine nucleotide-binding proteins 24: 5143:Signal transducing adaptor protein 3670:Signal transducing adaptor protein 2845:3',5'-cyclic-GMP phosphodiesterase 2801:3',5'-cyclic-AMP phosphodiesterase 875:magnocellular neurosecretory cells 869:– Promotes water retention by the 714:guanine nucleotide exchange factor 364:for their work on the release and 25: 5394: 3665:Activating transcription factor 6 3079:G protein-coupled receptor kinase 2623:Cholesterylester transfer protein 2242: 1339:10.1146/annurev.pharmtox.37.1.167 1086:induces calcium release from the 839:by stimulating the production of 773:Regulator of G protein signalling 628: 5335: 5307: 3209:Phosphoinositide phospholipase C 1217: 1015:, in addition to the actions of 811:for the reaction to take place. 513:for their work on GPCR function. 383:for discovering the key role of 2638:Latent TGF-beta binding protein 2587:Photosynthetic Reaction Centers 2188: 2147: 1985: 1928: 1887: 1838: 1657: 1646: 1621: 1608: 3648:GTP-binding protein regulators 3638:GTP-binding protein regulators 2572:Plant Light-Harvesting Complex 2365:Growth hormone binding protein 1353: 1070:) into two second messengers, 1058:stimulates the membrane-bound 967:parathyroid hormone 2 receptor 963:parathyroid hormone 1 receptor 750: 429:works as a switch to activate 425:for describing how reversible 13: 1: 3397:Rho-associated protein kinase 2164:10.1016/S0065-3233(07)74001-9 1760:Journal of Structural Biology 1271: 1251: 699: 321:, for their discovery of how 5368:Peripheral membrane proteins 3603:Dual-specificity phosphatase 3578:protein tyrosine phosphatase 3084:AMP-activated protein kinase 2435:Sex hormone binding globulin 2133:10.1016/j.biocel.2010.03.017 1941:Journal of Molecular Biology 1904:10.1016/bs.pmbts.2015.03.002 1802:Journal of Molecular Biology 1148:of adrenal cortex in kidney) 736:can then activate different 672:and the tightly associated G 650: 588: 556: 7: 4644: 4515:Protein-synthesizing GTPase 3627:apoptosis signaling pathway 2480:Calmodulin-binding proteins 599:G protein-coupled receptors 547:G protein-coupled receptors 536:G protein-coupled receptors 517: 280:G protein-coupled receptors 224:, learning and memory, and 169:G protein-coupled receptors 10: 5399: 2648:Membrane transport protein 2449:Thyroxine-binding globulin 1221: 1158: 779:(GAPs), are specific for G 777:GTPase-activating proteins 710:G protein-coupled receptor 632: 549:, they are inactivated by 333:is stimulated by numerous 231: 29: 5227: 5197: 5160: 5135: 5112: 5103: 5075: 5029: 5022: 4947: 4801: 4793:Michaelis–Menten kinetics 4765: 4734: 4703: 4652: 4574:Guanylate-binding protein 4553: 4512: 4252: 4126: 4113: 4078: 4030: 4011: 3957: 3877: 3856: 3849: 3832: 3809: 3769: 3758:acid anhydride hydrolases 3708: 3657: 3636: 3615: 3595: 3567: 3548: 3538: 3513: 3471:Serine/threonine/tyrosine 3470: 3429: 3232: 3222: 3201: 3175: 3096: 3074: 2957: 2858: 2814: 2764: 2755: 2746: 2720: 2701: 2605: 2577:Orange Carotenoid Protein 2562: 2519: 2462: 2348: 2300: 1953:10.1016/j.jmb.2016.08.002 1814:10.1016/j.jmb.2016.08.002 1772:10.1016/j.jsb.2013.03.004 1187: 1062:beta, which then cleaves 1042: 635:Heterotrimeric G proteins 609:(20-25kDa) belong to the 595:Heterotrimeric G proteins 522:G proteins are important 5255:Neuroendocrine signaling 4685:Diffusion-limited enzyme 4129:Heterotrimeric G protein 3824:Phosphoadenylylsulfatase 3685:Olfactory marker protein 3272:Glycogen synthase kinase 2775:Heterotrimeric G protein 2439:Androgen binding protein 2253:Medical Subject Headings 1129:Anterior pituitary gland 759:subunit will eventually 503:Nobel Prize in Chemistry 121:heterotrimeric G protein 30:Not to be confused with 3801:Thiamine-triphosphatase 3478:Dual-specificity kinase 3188:Cyclin-dependent kinase 2653:Odorant binding protein 2527:Retinol binding protein 2475:Calcium-binding protein 2214:10.1186/1477-7827-8-102 2195:Cole LA (August 2010). 2044:10.1073/pnas.0607116103 1571:10.1126/science.1071550 1391:Nature Chemical Biology 668:. They consist of the G 5117:cAMP-dependent pathway 2643:Major urinary proteins 1605:, Illustrated Lecture. 1303:10.1093/dnares/7.2.111 1072:inositol trisphosphate 1023: 989:breakdown in the liver 925:in the adrenal glands) 860:cAMP-dependent pathway 837:cAMP-dependent pathway 819: 661: 570: 479:, which act via GPCRs. 171:(GPCRs) that span the 95:guanosine triphosphate 71: 69:Guanosine triphosphate 61: 51: 5243:Synaptic transmission 5239:Neurocrine signaling 5162:Transcription factors 5009:PI3K/AKT/mTOR pathway 4778:Eadie–Hofstee diagram 4711:Allosteric regulation 4556:Polymerization motors 4267:Rho family of GTPases 3559:Protein phosphatase 2 3370:p21-activated kinases 2504:Iron-binding proteins 1845:Lim, Wendell (2015). 1520:Reece J, C N (2002). 1488:10.3390/cells11101660 1177:Rho family of GTPases 1088:endoplasmic reticulum 658: 641:conformational change 617:. These proteins are 564: 252:, which produces the 222:embryonic development 99:guanosine diphosphate 67: 59:Guanosine diphosphate 57: 42: 4788:Lineweaver–Burk plot 2962:G beta-gamma complex 2613:Acyl carrier protein 2509:Transferrin receptor 2249:GTP-Binding Proteins 1403:10.1038/nchembio.642 268:receptor antagonists 202:transporter proteins 5378:Signal transduction 5272:Mechanotransduction 5260:Exocrine signalling 5067:Signaling molecules 4941:Signal transduction 4564:dynamin superfamily 3541:protein phosphatase 3414:Ribosomal s6 kinase 2633:GTP-binding protein 2035:2006PNAS..10317789D 1726:10.1038/emm.2013.30 1563:2002Sci...296.1636N 1448:10.1021/bi00611a020 1230:signal transduction 1119:Posterior pituitary 977:calcitonin receptor 879:posterior pituitary 815:Specific mechanisms 684:(G stimulatory), Gα 645:signal transduction 623:signal transduction 496:olfactory receptors 400:George H. Hitchings 274:, neurotransmitter 180:protein triggers a 177:Signaling molecules 160:referred to as the 5282:Ion channel gating 5014:Integrin receptors 4948:Signaling pathways 4747:Enzyme superfamily 4680:Enzyme promiscuity 2711:MAP kinase pathway 2090:10.1002/prot.22303 1363:. 9 September 2012 1005:– released by the 893:anterior pituitary 889:somatotropic cells 738:signaling cascades 688:(G inhibitory), Gα 662: 607:"Small" G proteins 581:proteins, and 12 G 571: 524:signal transducing 471:, for research on 325:is broken down to 162:beta-gamma complex 87:molecular switches 83:family of proteins 72: 62: 52: 5295: 5294: 5277:Phototransduction 5235:Intracrine action 5193: 5192: 5156: 5155: 5044:Neurotransmitters 4903: 4902: 4612: 4611: 4608: 4607: 4109: 4108: 4074: 4073: 3819:Adenylylsulfatase 3720: 3719: 3675:I-kappa B protein 3611: 3610: 3534: 3533: 3171: 3170: 3092: 3091: 2835:Guanylate cyclase 2791:Adenylate cyclase 2661: 2660: 2173:978-0-12-034288-4 1947:(19): 3850–3868. 1858:978-0-8153-4244-1 1442:(18): 3795–3810. 849:adenylate cyclase 809:activation energy 473:neurotransmitters 423:Edmond H. Fischer 385:adenylate cyclase 370:neurotransmitters 339:neurotransmitters 284:second messengers 272:neurotransmitters 250:adenylate cyclase 190:neurotransmitters 16:(Redirected from 5390: 5348: 5340: 5339: 5338: 5328: 5312: 5311: 5303: 5248:Chemical synapse 5148:Scaffold protein 5110: 5109: 5105:Second messenger 5031:Receptor ligands 5027: 5026: 4930: 4923: 4916: 4907: 4906: 4783:Hanes–Woolf plot 4726:Enzyme activator 4721:Enzyme inhibitor 4695:Enzyme catalysis 4639: 4632: 4625: 4616: 4615: 4124: 4123: 3854: 3853: 3847: 3846: 3747: 3740: 3733: 3724: 3723: 3550:Serine/threonine 3546: 3545: 3234:Serine/threonine 3230: 3229: 2850:Protein kinase G 2806:Protein kinase A 2762: 2761: 2753: 2752: 2688: 2681: 2674: 2665: 2664: 2582:Phycobiliprotein 2294:carrier proteins 2283: 2276: 2269: 2260: 2259: 2237: 2236: 2226: 2216: 2192: 2186: 2185: 2151: 2145: 2144: 2116: 2110: 2109: 2073: 2067: 2066: 2056: 2046: 2029:(47): 17789–94. 2014: 2008: 2007: 2005: 2003: 1989: 1983: 1982: 1972: 1932: 1926: 1925: 1891: 1885: 1884: 1878: 1870: 1842: 1836: 1835: 1825: 1793: 1784: 1783: 1754: 1748: 1747: 1737: 1705: 1699: 1698: 1696: 1694: 1683: 1677: 1676: 1674: 1672: 1667:. Nobelprize.org 1661: 1655: 1650: 1644: 1643: 1641: 1639: 1625: 1619: 1612: 1606: 1600: 1591: 1590: 1557:(5573): 1636–9. 1546: 1540: 1539: 1527: 1517: 1511: 1510: 1500: 1490: 1466: 1460: 1459: 1431: 1425: 1424: 1414: 1382: 1373: 1372: 1370: 1368: 1357: 1351: 1350: 1322: 1316: 1315: 1305: 1281: 1146:zona glomerulosa 1111:Zona fasciculata 1092:protein kinase C 1090:. DAG activates 919:zona fasciculata 873:(created by the 853:protein kinase A 743:second messenger 511:Robert Lefkowitz 446:Alfred G. Gilman 319:Bernardo Houssay 254:second messenger 238:Alfred G. Gilman 77:, also known as 27:Type of proteins 21: 5398: 5397: 5393: 5392: 5391: 5389: 5388: 5387: 5353: 5352: 5351: 5341: 5336: 5334: 5331: 5327:sister projects 5324:at Knowledge's 5318: 5306: 5298: 5296: 5291: 5223: 5189: 5152: 5131: 5127:Lipid signaling 5099: 5071: 5018: 4943: 4934: 4904: 4899: 4811:Oxidoreductases 4797: 4773:Enzyme kinetics 4761: 4757:List of enzymes 4730: 4699: 4670:Catalytic triad 4648: 4643: 4613: 4604: 4549: 4508: 4259:Ras superfamily 4248: 4232: 4212: 4158: 4148: 4140: 4105: 4070: 4026: 4007: 3953: 3910:Plasma membrane 3873: 3828: 3805: 3779:Pyrophosphatase 3765: 3751: 3721: 3716: 3704: 3653: 3632: 3607: 3591: 3563: 3530: 3521:Arginine kinase 3509: 3466: 3425: 3218: 3214:Phospholipase C 3197: 3167: 3088: 3070: 3000: 2967: 2953: 2868: 2863:G alpha subunit 2854: 2810: 2742: 2716: 2697: 2692: 2662: 2657: 2618:Adaptor protein 2601: 2558: 2515: 2458: 2431:steroid hormone 2356:peptide hormone 2344: 2296: 2287: 2245: 2240: 2193: 2189: 2174: 2152: 2148: 2117: 2113: 2074: 2070: 2015: 2011: 2001: 1999: 1991: 1990: 1986: 1933: 1929: 1914: 1892: 1888: 1872: 1871: 1859: 1843: 1839: 1808:(19): 3850–68. 1794: 1787: 1755: 1751: 1706: 1702: 1692: 1690: 1684: 1680: 1670: 1668: 1663: 1662: 1658: 1651: 1647: 1637: 1635: 1627: 1626: 1622: 1613: 1609: 1601: 1594: 1547: 1543: 1536: 1518: 1514: 1467: 1463: 1432: 1428: 1383: 1376: 1366: 1364: 1359: 1358: 1354: 1323: 1319: 1282: 1278: 1274: 1254: 1226: 1220: 1206: 1197: 1195: 1191: 1172: 1164: 1162: 1107:glucocorticoids 1085: 1077: 1069: 1060:phospholipase C 1055: 1048: 1046: 1036: 1029: 1027: 1008:adrenal medulla 949:spermatogenesis 935:(thyroid gland) 832: 825: 823: 817: 806: 802: 799:subunit. Such G 798: 789:phospholipase C 782: 775:(RGSs), act as 770: 758: 753: 735: 731: 727: 723: 719: 702: 695: 691: 687: 683: 679: 675: 671: 653: 637: 631: 613:superfamily of 591: 584: 580: 576: 568: 559: 520: 427:phosphorylation 404:Sir James Black 381:Earl Sutherland 290:in response to 288:phosphorylation 234: 158:dimeric complex 151: 143: 135: 35: 28: 23: 22: 15: 12: 11: 5: 5396: 5386: 5385: 5380: 5375: 5373:Cell signaling 5370: 5365: 5350: 5349: 5320: 5317: 5316: 5293: 5292: 5290: 5289: 5284: 5279: 5274: 5269: 5268: 5267: 5257: 5252: 5251: 5250: 5245: 5237: 5231: 5229: 5228:Other concepts 5225: 5224: 5222: 5221: 5216: 5207: 5201: 5199: 5195: 5194: 5191: 5190: 5188: 5187: 5182: 5177: 5172: 5166: 5164: 5158: 5157: 5154: 5153: 5151: 5150: 5145: 5139: 5137: 5133: 5132: 5130: 5129: 5124: 5119: 5113: 5107: 5101: 5100: 5098: 5097: 5092: 5087: 5081: 5079: 5073: 5072: 5070: 5069: 5064: 5062:Growth factors 5059: 5054: 5041: 5035: 5033: 5024: 5020: 5019: 5017: 5016: 5011: 5006: 5001: 4996: 4991: 4986: 4981: 4980: 4979: 4974: 4964: 4959: 4957: 4951: 4949: 4945: 4944: 4937:Cell signaling 4933: 4932: 4925: 4918: 4910: 4901: 4900: 4898: 4897: 4884: 4871: 4858: 4845: 4832: 4819: 4805: 4803: 4799: 4798: 4796: 4795: 4790: 4785: 4780: 4775: 4769: 4767: 4763: 4762: 4760: 4759: 4754: 4749: 4744: 4738: 4736: 4735:Classification 4732: 4731: 4729: 4728: 4723: 4718: 4713: 4707: 4705: 4701: 4700: 4698: 4697: 4692: 4687: 4682: 4677: 4672: 4667: 4662: 4656: 4654: 4650: 4649: 4642: 4641: 4634: 4627: 4619: 4610: 4609: 4606: 4605: 4603: 4602: 4597: 4596: 4595: 4590: 4581: 4576: 4571: 4560: 4558: 4551: 4550: 4548: 4547: 4542: 4541: 4540: 4535: 4530: 4519: 4517: 4510: 4509: 4507: 4506: 4501: 4496: 4491: 4486: 4485: 4484: 4479: 4474: 4469: 4459: 4458: 4457: 4452: 4442: 4441: 4440: 4435: 4430: 4418: 4417: 4416: 4415: 4410: 4400: 4399: 4398: 4393: 4388: 4378: 4377: 4376: 4371: 4366: 4356: 4351: 4350: 4349: 4344: 4334: 4333: 4332: 4327: 4322: 4317: 4307: 4306: 4305: 4300: 4290: 4289: 4288: 4283: 4278: 4263: 4261: 4250: 4249: 4247: 4246: 4245: 4244: 4239: 4230: 4226: 4225: 4224: 4219: 4210: 4206: 4205: 4204: 4203: 4202: 4192: 4191: 4190: 4185: 4175: 4170: 4165: 4156: 4152: 4151: 4150: 4146: 4138: 4133: 4131: 4121: 4111: 4110: 4107: 4106: 4104: 4103: 4098: 4093: 4088: 4082: 4080: 4076: 4075: 4072: 4071: 4069: 4068: 4063: 4058: 4053: 4048: 4043: 4037: 4035: 4028: 4027: 4025: 4024: 4018: 4016: 4009: 4008: 4006: 4005: 4000: 3995: 3990: 3985: 3980: 3975: 3970: 3964: 3962: 3955: 3954: 3952: 3951: 3950: 3949: 3944: 3934: 3933: 3932: 3927: 3922: 3917: 3907: 3906: 3905: 3900: 3895: 3884: 3882: 3875: 3874: 3872: 3871: 3866: 3860: 3858: 3857:Cu++ (3.6.3.4) 3851: 3844: 3830: 3829: 3827: 3826: 3821: 3815: 3813: 3807: 3806: 3804: 3803: 3798: 3793: 3792: 3791: 3786: 3775: 3773: 3767: 3766: 3750: 3749: 3742: 3735: 3727: 3718: 3717: 3709: 3706: 3705: 3703: 3702: 3697: 3692: 3687: 3682: 3677: 3672: 3667: 3661: 3659: 3655: 3654: 3652: 3651: 3642: 3640: 3634: 3633: 3631: 3630: 3621: 3619: 3613: 3612: 3609: 3608: 3606: 3605: 3599: 3597: 3593: 3592: 3590: 3589: 3584: 3574: 3572: 3565: 3564: 3562: 3561: 3555: 3553: 3543: 3536: 3535: 3532: 3531: 3529: 3528: 3523: 3517: 3515: 3511: 3510: 3508: 3507: 3506: 3505: 3500: 3495: 3490: 3485: 3474: 3472: 3468: 3467: 3465: 3464: 3459: 3458: 3457: 3452: 3442: 3436: 3434: 3427: 3426: 3424: 3423: 3422: 3421: 3411: 3410: 3409: 3404: 3394: 3393: 3392: 3387: 3382: 3377: 3367: 3366: 3365: 3360: 3350: 3349: 3348: 3343: 3338: 3333: 3323: 3322: 3321: 3316: 3311: 3301: 3300: 3299: 3294: 3289: 3284: 3279: 3269: 3268: 3267: 3257: 3256: 3255: 3250: 3239: 3237: 3227: 3225:protein kinase 3220: 3219: 3217: 3216: 3211: 3205: 3203: 3199: 3198: 3196: 3195: 3190: 3185: 3179: 3177: 3173: 3172: 3169: 3168: 3166: 3165: 3160: 3155: 3150: 3145: 3140: 3135: 3134: 3133: 3128: 3123: 3113: 3108: 3102: 3100: 3094: 3093: 3090: 3089: 3087: 3086: 3081: 3075: 3072: 3071: 3069: 3068: 3067: 3066: 3061: 3056: 3051: 3046: 3041: 3036: 3031: 3026: 3021: 3016: 3011: 3006: 2998: 2995: 2994: 2993: 2988: 2983: 2978: 2973: 2965: 2958: 2955: 2954: 2952: 2951: 2950: 2949: 2944: 2939: 2934: 2929: 2924: 2919: 2914: 2909: 2904: 2899: 2894: 2889: 2884: 2879: 2874: 2866: 2859: 2856: 2855: 2853: 2852: 2847: 2842: 2837: 2832: 2827: 2821: 2819: 2812: 2811: 2809: 2808: 2803: 2798: 2793: 2788: 2787: 2786: 2771: 2769: 2759: 2757:Heterotrimeric 2750: 2744: 2743: 2741: 2740: 2735: 2730: 2724: 2722: 2718: 2717: 2715: 2714: 2705: 2703: 2699: 2698: 2691: 2690: 2683: 2676: 2668: 2659: 2658: 2656: 2655: 2650: 2645: 2640: 2635: 2630: 2625: 2620: 2615: 2609: 2607: 2603: 2602: 2600: 2599: 2594: 2589: 2584: 2579: 2574: 2568: 2566: 2560: 2559: 2557: 2556: 2554:Transcobalamin 2551: 2550: 2549: 2544: 2539: 2534: 2523: 2521: 2517: 2516: 2514: 2513: 2512: 2511: 2506: 2496: 2495: 2494: 2484: 2483: 2482: 2477: 2466: 2464: 2460: 2459: 2457: 2456: 2451: 2446: 2441: 2427: 2426: 2425: 2424: 2419: 2409: 2408: 2407: 2402: 2397: 2392: 2387: 2382: 2377: 2367: 2362: 2352: 2350: 2346: 2345: 2343: 2342: 2337: 2332: 2327: 2322: 2317: 2312: 2306: 2304: 2298: 2297: 2286: 2285: 2278: 2271: 2263: 2257: 2256: 2244: 2243:External links 2241: 2239: 2238: 2187: 2172: 2146: 2111: 2068: 2009: 1984: 1927: 1912: 1886: 1857: 1837: 1785: 1749: 1700: 1678: 1656: 1645: 1620: 1615:Press Release: 1607: 1592: 1541: 1534: 1512: 1461: 1426: 1374: 1352: 1317: 1275: 1273: 1270: 1253: 1250: 1222:Main article: 1219: 1216: 1215: 1214: 1204: 1196: 1193: 1189: 1186: 1185: 1184: 1170: 1163: 1160: 1157: 1156: 1155: 1149: 1142:Angiotensin II 1139: 1132: 1122: 1115:adrenal cortex 1099: 1083: 1080:diacylglycerol 1075: 1067: 1053: 1047: 1044: 1041: 1034: 1028: 1025: 1022: 1021: 1020: 1013:glycogenolysis 1000: 990: 980: 970: 952: 942: 936: 926: 923:adrenal cortex 908: 902: 896: 882: 835:activates the 830: 824: 821: 818: 816: 813: 804: 800: 796: 780: 768: 756: 752: 749: 733: 729: 725: 721: 717: 708:activates the 701: 698: 693: 689: 685: 681: 677: 673: 669: 652: 649: 633:Main article: 630: 629:Heterotrimeric 627: 590: 587: 582: 578: 574: 566: 558: 555: 519: 516: 515: 514: 499: 480: 469:Paul Greengard 465:Arvid Carlsson 453: 450:Martin Rodbell 438: 435:glycogenolysis 419:Edwin G. Krebs 411: 408:Gertrude Elion 392: 373: 354:Julius Axelrod 346: 331:Glycogenolysis 296:glycogenolysis 282:, G proteins, 242:Martin Rodbell 233: 230: 149: 141: 133: 26: 9: 6: 4: 3: 2: 5395: 5384: 5381: 5379: 5376: 5374: 5371: 5369: 5366: 5364: 5361: 5360: 5358: 5346: 5345: 5333: 5332: 5329: 5323: 5315: 5310: 5305: 5304: 5301: 5288: 5285: 5283: 5280: 5278: 5275: 5273: 5270: 5266: 5263: 5262: 5261: 5258: 5256: 5253: 5249: 5246: 5244: 5241: 5240: 5238: 5236: 5233: 5232: 5230: 5226: 5220: 5217: 5215: 5211: 5208: 5206: 5203: 5202: 5200: 5196: 5186: 5183: 5181: 5178: 5176: 5173: 5171: 5168: 5167: 5165: 5163: 5159: 5149: 5146: 5144: 5141: 5140: 5138: 5134: 5128: 5125: 5123: 5120: 5118: 5115: 5114: 5111: 5108: 5106: 5102: 5096: 5093: 5091: 5090:Intracellular 5088: 5086: 5083: 5082: 5080: 5078: 5074: 5068: 5065: 5063: 5060: 5058: 5055: 5053: 5052:Neurohormones 5049: 5048:Neuropeptides 5045: 5042: 5040: 5037: 5036: 5034: 5032: 5028: 5025: 5021: 5015: 5012: 5010: 5007: 5005: 5002: 5000: 4999:Fas apoptosis 4997: 4995: 4992: 4990: 4987: 4985: 4982: 4978: 4975: 4973: 4970: 4969: 4968: 4965: 4963: 4960: 4958: 4956: 4953: 4952: 4950: 4946: 4942: 4938: 4931: 4926: 4924: 4919: 4917: 4912: 4911: 4908: 4895: 4891: 4890: 4885: 4882: 4878: 4877: 4872: 4869: 4865: 4864: 4859: 4856: 4852: 4851: 4846: 4843: 4839: 4838: 4833: 4830: 4826: 4825: 4820: 4817: 4813: 4812: 4807: 4806: 4804: 4800: 4794: 4791: 4789: 4786: 4784: 4781: 4779: 4776: 4774: 4771: 4770: 4768: 4764: 4758: 4755: 4753: 4752:Enzyme family 4750: 4748: 4745: 4743: 4740: 4739: 4737: 4733: 4727: 4724: 4722: 4719: 4717: 4716:Cooperativity 4714: 4712: 4709: 4708: 4706: 4702: 4696: 4693: 4691: 4688: 4686: 4683: 4681: 4678: 4676: 4675:Oxyanion hole 4673: 4671: 4668: 4666: 4663: 4661: 4658: 4657: 4655: 4651: 4647: 4640: 4635: 4633: 4628: 4626: 4621: 4620: 4617: 4601: 4598: 4594: 4591: 4589: 4585: 4582: 4580: 4577: 4575: 4572: 4570: 4567: 4566: 4565: 4562: 4561: 4559: 4557: 4552: 4546: 4543: 4539: 4536: 4534: 4531: 4529: 4526: 4525: 4524: 4521: 4520: 4518: 4516: 4511: 4505: 4502: 4500: 4497: 4495: 4492: 4490: 4487: 4483: 4480: 4478: 4475: 4473: 4470: 4468: 4465: 4464: 4463: 4460: 4456: 4453: 4451: 4448: 4447: 4446: 4443: 4439: 4436: 4434: 4431: 4429: 4426: 4425: 4424: 4420: 4419: 4414: 4411: 4409: 4406: 4405: 4404: 4401: 4397: 4394: 4392: 4389: 4387: 4384: 4383: 4382: 4379: 4375: 4372: 4370: 4367: 4365: 4362: 4361: 4360: 4357: 4355: 4352: 4348: 4345: 4343: 4340: 4339: 4338: 4335: 4331: 4328: 4326: 4323: 4321: 4318: 4316: 4313: 4312: 4311: 4308: 4304: 4301: 4299: 4296: 4295: 4294: 4291: 4287: 4284: 4282: 4279: 4277: 4274: 4273: 4272: 4268: 4265: 4264: 4262: 4260: 4256: 4251: 4243: 4240: 4238: 4235: 4234: 4233: 4227: 4223: 4220: 4218: 4215: 4214: 4213: 4207: 4201: 4198: 4197: 4196: 4193: 4189: 4186: 4184: 4181: 4180: 4179: 4176: 4174: 4171: 4169: 4166: 4164: 4161: 4160: 4159: 4153: 4149: 4143: 4142: 4141: 4135: 4134: 4132: 4130: 4125: 4122: 4120: 4116: 4112: 4102: 4099: 4097: 4094: 4092: 4089: 4087: 4084: 4083: 4081: 4077: 4067: 4064: 4062: 4059: 4057: 4054: 4052: 4049: 4047: 4044: 4042: 4039: 4038: 4036: 4034: 4033:P-type ATPase 4029: 4023: 4020: 4019: 4017: 4014: 4010: 4004: 4001: 3999: 3996: 3994: 3991: 3989: 3986: 3984: 3981: 3979: 3976: 3974: 3971: 3969: 3966: 3965: 3963: 3960: 3956: 3948: 3945: 3943: 3940: 3939: 3938: 3935: 3931: 3928: 3926: 3923: 3921: 3918: 3916: 3913: 3912: 3911: 3908: 3904: 3901: 3899: 3896: 3894: 3891: 3890: 3889: 3886: 3885: 3883: 3880: 3876: 3870: 3867: 3865: 3862: 3861: 3859: 3855: 3852: 3848: 3845: 3843: 3839: 3835: 3831: 3825: 3822: 3820: 3817: 3816: 3814: 3812: 3808: 3802: 3799: 3797: 3794: 3790: 3787: 3785: 3782: 3781: 3780: 3777: 3776: 3774: 3772: 3768: 3763: 3759: 3755: 3748: 3743: 3741: 3736: 3734: 3729: 3728: 3725: 3715: 3714: 3707: 3701: 3698: 3696: 3693: 3691: 3688: 3686: 3683: 3681: 3678: 3676: 3673: 3671: 3668: 3666: 3663: 3662: 3660: 3656: 3650: 3649: 3644: 3643: 3641: 3639: 3635: 3629: 3628: 3623: 3622: 3620: 3618: 3614: 3604: 3601: 3600: 3598: 3594: 3588: 3585: 3583: 3579: 3576: 3575: 3573: 3570: 3566: 3560: 3557: 3556: 3554: 3551: 3547: 3544: 3542: 3537: 3527: 3524: 3522: 3519: 3518: 3516: 3512: 3504: 3501: 3499: 3496: 3494: 3491: 3489: 3486: 3484: 3481: 3480: 3479: 3476: 3475: 3473: 3469: 3463: 3460: 3456: 3453: 3451: 3448: 3447: 3446: 3443: 3441: 3438: 3437: 3435: 3432: 3428: 3420: 3417: 3416: 3415: 3412: 3408: 3405: 3403: 3400: 3399: 3398: 3395: 3391: 3388: 3386: 3383: 3381: 3378: 3376: 3373: 3372: 3371: 3368: 3364: 3361: 3359: 3356: 3355: 3354: 3351: 3347: 3344: 3342: 3339: 3337: 3334: 3332: 3329: 3328: 3327: 3324: 3320: 3317: 3315: 3312: 3310: 3307: 3306: 3305: 3302: 3298: 3295: 3293: 3290: 3288: 3285: 3283: 3280: 3278: 3275: 3274: 3273: 3270: 3266: 3263: 3262: 3261: 3258: 3254: 3251: 3249: 3246: 3245: 3244: 3243:Casein kinase 3241: 3240: 3238: 3235: 3231: 3228: 3226: 3221: 3215: 3212: 3210: 3207: 3206: 3204: 3200: 3194: 3191: 3189: 3186: 3184: 3181: 3180: 3178: 3174: 3164: 3161: 3159: 3156: 3154: 3151: 3149: 3146: 3144: 3141: 3139: 3136: 3132: 3129: 3127: 3124: 3122: 3119: 3118: 3117: 3114: 3112: 3109: 3107: 3104: 3103: 3101: 3099: 3095: 3085: 3082: 3080: 3077: 3076: 3073: 3065: 3062: 3060: 3057: 3055: 3052: 3050: 3047: 3045: 3042: 3040: 3037: 3035: 3032: 3030: 3027: 3025: 3022: 3020: 3017: 3015: 3012: 3010: 3007: 3005: 3002: 3001: 2996: 2992: 2989: 2987: 2984: 2982: 2979: 2977: 2974: 2972: 2969: 2968: 2963: 2960: 2959: 2956: 2948: 2945: 2943: 2940: 2938: 2935: 2933: 2930: 2928: 2925: 2923: 2920: 2918: 2915: 2913: 2910: 2908: 2905: 2903: 2900: 2898: 2895: 2893: 2890: 2888: 2885: 2883: 2880: 2878: 2875: 2873: 2870: 2869: 2864: 2861: 2860: 2857: 2851: 2848: 2846: 2843: 2841: 2838: 2836: 2833: 2831: 2828: 2826: 2823: 2822: 2820: 2817: 2813: 2807: 2804: 2802: 2799: 2797: 2794: 2792: 2789: 2785: 2781: 2778: 2777: 2776: 2773: 2772: 2770: 2767: 2763: 2760: 2758: 2754: 2751: 2749: 2745: 2739: 2736: 2734: 2731: 2729: 2726: 2725: 2723: 2719: 2713: 2712: 2707: 2706: 2704: 2700: 2696: 2689: 2684: 2682: 2677: 2675: 2670: 2669: 2666: 2654: 2651: 2649: 2646: 2644: 2641: 2639: 2636: 2634: 2631: 2629: 2628:F-box protein 2626: 2624: 2621: 2619: 2616: 2614: 2611: 2610: 2608: 2604: 2598: 2595: 2593: 2590: 2588: 2585: 2583: 2580: 2578: 2575: 2573: 2570: 2569: 2567: 2565: 2561: 2555: 2552: 2548: 2545: 2543: 2540: 2538: 2535: 2533: 2530: 2529: 2528: 2525: 2524: 2522: 2518: 2510: 2507: 2505: 2502: 2501: 2500: 2497: 2493: 2492:Ceruloplasmin 2490: 2489: 2488: 2485: 2481: 2478: 2476: 2473: 2472: 2471: 2468: 2467: 2465: 2463:Metal/element 2461: 2455: 2454:Transthyretin 2452: 2450: 2447: 2445: 2442: 2440: 2436: 2432: 2429: 2428: 2423: 2420: 2418: 2417:Neurophysin I 2415: 2414: 2413: 2410: 2406: 2403: 2401: 2398: 2396: 2393: 2391: 2388: 2386: 2383: 2381: 2378: 2376: 2373: 2372: 2371: 2368: 2366: 2363: 2361: 2357: 2354: 2353: 2351: 2347: 2341: 2338: 2336: 2333: 2331: 2328: 2326: 2323: 2321: 2318: 2316: 2313: 2311: 2308: 2307: 2305: 2303: 2299: 2295: 2291: 2284: 2279: 2277: 2272: 2270: 2265: 2264: 2261: 2254: 2250: 2247: 2246: 2234: 2230: 2225: 2220: 2215: 2210: 2206: 2202: 2198: 2191: 2183: 2179: 2175: 2169: 2165: 2161: 2157: 2150: 2142: 2138: 2134: 2130: 2127:(6): 1052–9. 2126: 2122: 2115: 2107: 2103: 2099: 2095: 2091: 2087: 2084:(4): 919–30. 2083: 2079: 2072: 2064: 2060: 2055: 2050: 2045: 2040: 2036: 2032: 2028: 2024: 2020: 2013: 1998: 1997:www.ebi.ac.uk 1994: 1988: 1980: 1976: 1971: 1966: 1962: 1958: 1954: 1950: 1946: 1942: 1938: 1931: 1923: 1919: 1915: 1913:9780128029381 1909: 1905: 1901: 1897: 1890: 1882: 1876: 1868: 1864: 1860: 1854: 1850: 1849: 1841: 1833: 1829: 1824: 1819: 1815: 1811: 1807: 1803: 1799: 1792: 1790: 1781: 1777: 1773: 1769: 1766:(3): 209–18. 1765: 1761: 1753: 1745: 1741: 1736: 1731: 1727: 1723: 1720:(1038): e15. 1719: 1715: 1711: 1704: 1689: 1682: 1666: 1660: 1654: 1653:Press Release 1649: 1634: 1630: 1624: 1616: 1611: 1604: 1599: 1597: 1588: 1584: 1580: 1576: 1572: 1568: 1564: 1560: 1556: 1552: 1545: 1537: 1535:0-8053-6624-5 1531: 1526: 1525: 1516: 1508: 1504: 1499: 1494: 1489: 1484: 1480: 1476: 1472: 1465: 1457: 1453: 1449: 1445: 1441: 1437: 1430: 1422: 1418: 1413: 1408: 1404: 1400: 1397:(10): 740–7. 1396: 1392: 1388: 1381: 1379: 1362: 1356: 1348: 1344: 1340: 1336: 1332: 1328: 1321: 1313: 1309: 1304: 1299: 1296:(2): 111–20. 1295: 1291: 1287: 1280: 1276: 1269: 1267: 1263: 1262:palmitoylated 1259: 1258:myristoylated 1249: 1247: 1243: 1239: 1235: 1231: 1225: 1218:Small GTPases 1212: 1208: 1207: 1199: 1198: 1182: 1181:RhoGEF domain 1178: 1174: 1173: 1166: 1165: 1153: 1150: 1147: 1143: 1140: 1137: 1136:Thyroid Gland 1133: 1130: 1126: 1123: 1120: 1116: 1112: 1108: 1104: 1100: 1097: 1096: 1095: 1093: 1089: 1081: 1073: 1065: 1061: 1057: 1056: 1040: 1038: 1037: 1018: 1014: 1010: 1009: 1004: 1001: 998: 994: 991: 988: 985:– Stimulates 984: 981: 978: 974: 971: 968: 964: 960: 959:blood calcium 956: 953: 950: 946: 943: 940: 937: 934: 930: 927: 924: 920: 916: 912: 909: 906: 903: 900: 897: 894: 890: 886: 883: 880: 876: 872: 868: 865: 864: 863: 861: 856: 854: 850: 846: 842: 838: 834: 833: 812: 810: 794: 790: 786: 778: 774: 766: 762: 748: 746: 744: 739: 715: 711: 707: 697: 667: 666:cell membrane 657: 648: 646: 642: 636: 626: 624: 620: 616: 615:small GTPases 612: 608: 604: 600: 596: 586: 577:proteins, 5 G 563: 554: 552: 548: 543: 541: 537: 533: 529: 525: 512: 508: 507:Brian Kobilka 504: 500: 497: 493: 492:Linda B. Buck 489: 485: 481: 478: 474: 470: 466: 462: 458: 454: 451: 447: 443: 439: 436: 432: 428: 424: 420: 416: 412: 409: 405: 401: 397: 393: 390: 386: 382: 378: 374: 371: 367: 363: 362:Ulf von Euler 359: 355: 351: 347: 344: 340: 336: 332: 328: 324: 320: 316: 312: 308: 304: 303: 302: 299: 297: 293: 289: 285: 281: 277: 273: 269: 264: 262: 258: 255: 251: 247: 243: 239: 229: 227: 223: 219: 215: 214:contractility 211: 207: 206:transcription 203: 199: 195: 191: 187: 183: 178: 174: 173:cell membrane 170: 165: 163: 159: 155: 147: 139: 131: 130: 125: 122: 118: 117:small GTPases 115: 110: 108: 104: 100: 96: 92: 88: 84: 80: 76: 70: 66: 60: 56: 49: 45: 41: 37: 33: 19: 5347:from Commons 5342: 5321: 5287:Gap junction 5122:Ca signaling 5085:Cell surface 4889:Translocases 4886: 4873: 4860: 4847: 4834: 4824:Transferases 4821: 4808: 4665:Binding site 4402: 4336: 4292: 4270: 4255:Small GTPase 3869:Wilson/ATP7B 3864:Menkes/ATP7A 3710: 3645: 3624: 3260:eIF-2 kinase 2747: 2708: 2632: 2498: 2486: 2469: 2412:Neurophysins 2204: 2200: 2190: 2155: 2149: 2124: 2120: 2114: 2081: 2077: 2071: 2026: 2022: 2012: 2000:. Retrieved 1996: 1987: 1944: 1940: 1930: 1895: 1889: 1847: 1840: 1805: 1801: 1763: 1759: 1752: 1717: 1713: 1703: 1691:. Retrieved 1681: 1669:. Retrieved 1659: 1648: 1636:. Retrieved 1623: 1610: 1554: 1550: 1544: 1523: 1515: 1481:(10): 1660. 1478: 1474: 1464: 1439: 1436:Biochemistry 1435: 1429: 1394: 1390: 1365:. Retrieved 1355: 1330: 1326: 1320: 1293: 1290:DNA Research 1289: 1279: 1255: 1227: 1224:Small GTPase 1201: 1167: 1050: 1049: 1031: 1030: 1006: 957:– Increases 857: 843:(cAMP) from 827: 826: 784: 754: 741: 737: 703: 680:subunits: Gα 663: 638: 606: 592: 572: 551:RGS proteins 544: 521: 488:Richard Axel 358:Bernard Katz 300: 265: 235: 198:ion channels 166: 145: 137: 127: 111: 85:that act as 78: 74: 73: 36: 5198:By distance 5136:Assistants: 5095:Co-receptor 4660:Active site 4579:Mitofusin-1 4554:3.6.5.5-6: 4523:Prokaryotic 2947:GNA15/GNA16 2733:Calcineurin 2592:Phytochrome 2444:Transcortin 2360:Follistatin 1333:: 167–203. 1242:Ras GTPases 1103:Vasopressin 1098:Epinephrine 1003:Epinephrine 751:Termination 461:Eric Kandel 226:homeostasis 5363:G proteins 5357:Categories 5265:Pheromones 5205:Juxtacrine 4863:Isomerases 4837:Hydrolases 4704:Regulation 4545:Eukaryotic 4178:Transducin 4015:(3.6.3.10) 3754:Hydrolases 3353:Lim kinase 3304:IκB kinase 2825:Transducin 2302:Fatty acid 2207:(1): 102. 1993:"InterPro" 1693:10 October 1671:8 November 1272:References 1266:prenylated 1252:Lipidation 973:Calcitonin 841:cyclic AMP 793:C-terminal 732:-GTP and G 700:Activation 619:homologous 585:proteins. 389:cyclic AMP 343:adrenaline 341:including 315:Gerty Cori 257:cyclic AMP 246:adrenaline 75:G proteins 48:transducin 18:G-proteins 5322:G protein 5219:Endocrine 5214:Paracrine 5210:Autocrine 5077:Receptors 5057:Cytokines 4742:EC number 4513:3.6.5.3: 4253:3.6.5.2: 4195:Gustducin 4127:3.6.5.1: 3961:(3.6.3.9) 3881:(3.6.3.8) 3784:Inorganic 3711:see also 3617:Apoptosis 3098:Monomeric 2830:Gustducin 2748:G protein 2597:Rhodopsin 1961:0022-2836 1875:cite book 1867:868641565 1638:21 August 1082:(DAG). IP 997:apoptosis 765:enzymatic 761:hydrolyze 651:Mechanism 589:Signaling 569:proteins. 557:Diversity 501:The 2012 482:The 2004 455:The 2000 440:The 1994 413:The 1992 394:The 1988 375:The 1971 348:The 1970 311:Carl Cori 305:The 1947 218:secretion 124:complexes 114:monomeric 97:(GTP) to 44:Phosducin 32:Protein G 5039:Hormones 4989:JAK-STAT 4977:MAPK/ERK 4972:TGF beta 4766:Kinetics 4690:Cofactor 4653:Activity 3789:Thiamine 3569:Tyrosine 3514:Arginine 3431:Tyrosine 2290:Proteins 2233:20735820 2182:17854654 2141:20348012 2106:23909821 2098:19089952 2078:Proteins 2063:17095603 1979:27515397 1922:26123299 1832:27515397 1780:23523730 1744:23519208 1587:20136388 1579:12040175 1507:35626696 1421:21873996 1312:10819326 1234:proteins 1017:glucagon 987:glycogen 983:Glucagon 915:cortisol 745:pathways 692:, and Gα 603:subunits 528:diabetes 518:Function 477:dopamine 475:such as 431:proteins 366:reuptake 335:hormones 323:glycogen 276:reuptake 210:motility 186:hormones 154:subunits 81:, are a 5314:Biology 5170:General 4994:Akt/PKB 4876:Ligases 4646:Enzymes 4600:Tubulin 4569:Dynamin 4421:other: 4101:Katanin 4091:Kinesin 4066:ATP13A3 4061:ATP13A2 3796:Apyrase 3695:EDARADD 3680:Mucin-4 3419:RPS6KA1 3265:EIF2AK3 2721:Calcium 2564:Pigment 2520:Vitamin 2470:calcium 2349:Hormone 2224:2936313 2054:1693825 2031:Bibcode 1970:5023507 1823:5023507 1735:3641396 1559:Bibcode 1551:Science 1524:Biology 1498:9139411 1412:3177959 1367:11 July 1347:9131251 1246:GTPases 921:of the 891:of the 877:of the 871:kidneys 704:When a 540:ligands 327:glucose 232:History 194:enzymes 107:GTPases 105:called 103:enzymes 5383:EC 3.6 5300:Portal 5023:Agents 4850:Lyases 4477:ARL13B 4337:RhoBTB 4231:α12/13 4119:GTPase 4096:Myosin 4086:Dynein 4056:ATP12A 4051:ATP11B 4046:ATP10A 4041:ATP8B1 4031:Other 4003:ATP1B4 3998:ATP1B3 3993:ATP1B2 3988:ATP1B1 3983:ATP1A4 3978:ATP1A3 3973:ATP1A2 3968:ATP1A1 3959:Na+/K+ 3947:ATP2C2 3942:ATP2C1 3930:ATP2B4 3925:ATP2B3 3920:ATP2B2 3915:ATP2B1 3903:ATP2A3 3898:ATP2A2 3893:ATP2A1 3842:ATPase 3700:PRKCSH 3539:Other 3488:DYRK1B 3483:DYRK1A 3223:Other 3193:Cyclin 3176:Cyclin 2487:copper 2405:IGFBP7 2400:IGFBP6 2395:IGFBP5 2390:IGFBP4 2385:IGFBP3 2380:IGFBP2 2375:IGFBP1 2255:(MeSH) 2231:  2221:  2180:  2170:  2139:  2104:  2096:  2061:  2051:  2002:25 May 1977:  1967:  1959:  1920:  1910:  1865:  1855:  1830:  1820:  1778:  1742:  1732:  1585:  1577:  1532:  1505:  1495:  1456:212105 1454:  1419:  1409:  1345:  1310:  1171:α12/13 1161:α12/13 1078:) and 951:in men 785:itself 706:ligand 532:cancer 216:, and 144:) and 5344:Media 5185:TFIIH 5180:TFIID 5004:Hippo 4984:Notch 4802:Types 4533:EF-Tu 4472:SAR1B 4455:RAB27 4450:RAB23 4403:RhoDF 4293:RhoUV 4276:CDC42 4271:Cdc42 4257:> 4242:GNA13 4237:GNA12 4222:GNA11 4211:αq/11 4200:GNAT3 4188:GNAT2 4183:GNAT1 4173:GNAI3 4168:GNAI2 4163:GNAI1 4115:3.6.5 4079:3.6.4 4022:ATP4A 4013:H+/K+ 3888:SERCA 3850:3.6.3 3834:3.6.3 3811:3.6.2 3771:3.6.1 3658:Other 3596:both: 3503:DYRK4 3498:DYRK3 3493:DYRK2 3455:PTK2B 3440:ZAP70 3407:ROCK2 3402:ROCK1 3363:LIMK2 3358:LIMK1 3346:IRAK4 3341:IRAK3 3336:IRAK2 3331:IRAK1 3319:IKBKG 3297:GSK3B 3292:GSK3A 3287:GSK-3 3202:Lipid 3153:Rhebs 3064:BSCL2 3059:GNG13 3054:GNG12 3049:GNG11 3044:GNG10 3009:GNGT2 3004:GNGT1 2942:GNA14 2937:GNA13 2932:GNA12 2927:GNA11 2902:GNAT3 2897:GNAT2 2892:GNAT1 2887:GNAI3 2882:GNAI2 2877:GNAI1 2872:GNAO1 2606:Other 2340:FABP7 2335:FABP6 2330:FABP5 2325:FABP4 2320:FABP3 2315:FABP2 2310:FABP1 2102:S2CID 1583:S2CID 1475:Cells 1101:ADH ( 1054:αq/11 1045:αq/11 755:The G 694:12/13 146:gamma 129:alpha 4955:GPCR 4894:list 4887:EC7 4881:list 4874:EC6 4868:list 4861:EC5 4855:list 4848:EC4 4842:list 4835:EC3 4829:list 4822:EC2 4816:list 4809:EC1 4593:OPA1 4586:and 4538:EF-G 4528:IF-2 4494:Rheb 4482:ARL6 4467:ARF6 4438:NRAS 4433:KRAS 4428:HRAS 4413:RhoD 4408:RhoF 4354:RhoH 4330:RhoG 4315:Rac1 4303:RhoV 4298:RhoU 4281:TC10 4217:GNAQ 3937:SPCA 3764:3.6) 3646:see 3625:see 3526:McsB 3450:PTK2 3390:PAK4 3385:PAK3 3380:PAK2 3375:PAK1 3314:IKK2 3309:CHUK 3282:GSK2 3277:GSK1 3163:RGKs 3158:Raps 3143:Arfs 3138:Rhos 3131:NRAS 3126:KRAS 3121:HRAS 3111:Rabs 3106:ARFs 3039:GNG8 3034:GNG7 3029:GNG5 3024:GNG4 3019:GNG3 3014:GNG2 2991:GNB5 2986:GNB4 2981:GNB3 2976:GNB2 2971:GNB1 2922:GNAQ 2917:GNAL 2912:GNAS 2907:GNAZ 2840:cGMP 2816:cGMP 2796:cAMP 2766:cAMP 2709:see 2499:iron 2229:PMID 2178:PMID 2168:ISBN 2137:PMID 2094:PMID 2059:PMID 2004:2023 1975:PMID 1957:ISSN 1918:PMID 1908:ISBN 1881:link 1863:OCLC 1853:ISBN 1828:PMID 1776:PMID 1740:PMID 1695:2012 1673:2012 1640:2013 1618:1994 1575:PMID 1530:ISBN 1503:PMID 1452:PMID 1417:PMID 1369:2016 1343:PMID 1308:PMID 1200:The 1152:GnRH 1066:(PIP 911:ACTH 899:GHIH 885:GHRH 858:The 740:(or 690:q/11 509:and 490:and 467:and 448:and 421:and 406:and 360:and 337:and 317:and 292:cAMP 240:and 138:beta 91:cell 4967:RTK 4962:Wnt 4588:MX2 4584:MX1 4504:RGK 4499:Rap 4489:Ran 4462:Arf 4445:Rab 4423:Ras 4381:Rnd 4359:Rho 4310:Rac 4286:TCL 4147:olf 3879:Ca+ 3462:BTK 3148:Ran 3116:Ras 2702:MAP 2219:PMC 2209:doi 2160:doi 2129:doi 2086:doi 2049:PMC 2039:doi 2027:103 1965:PMC 1949:doi 1945:428 1900:doi 1818:PMC 1810:doi 1806:428 1768:doi 1764:182 1730:PMC 1722:doi 1567:doi 1555:296 1493:PMC 1483:doi 1444:doi 1407:PMC 1399:doi 1335:doi 1298:doi 1264:or 1238:GTP 1192:, G 1125:TRH 1113:of 1074:(IP 993:hCG 955:PTH 945:FSH 929:TSH 905:CRH 867:ADH 845:ATP 611:Ras 505:to 486:to 459:to 444:to 417:to 398:to 379:to 368:of 352:to 309:to 136:), 5359:: 5212:/ 4939:/ 4269:: 4157:αi 4139:αs 4117:: 3840:: 3762:EC 3756:: 3580:: 2784:Gi 2780:Gs 2433:: 2422:II 2358:: 2292:: 2227:. 2217:. 2203:. 2199:. 2176:. 2166:. 2135:. 2125:42 2123:. 2100:. 2092:. 2082:75 2080:. 2057:. 2047:. 2037:. 2025:. 2021:. 1995:. 1973:. 1963:. 1955:. 1943:. 1939:. 1916:. 1906:. 1877:}} 1873:{{ 1861:. 1826:. 1816:. 1804:. 1800:. 1788:^ 1774:. 1762:. 1738:. 1728:. 1718:45 1716:. 1712:. 1631:. 1595:^ 1581:. 1573:. 1565:. 1553:. 1501:. 1491:. 1479:11 1477:. 1473:. 1450:. 1440:17 1438:. 1415:. 1405:. 1393:. 1389:. 1377:^ 1341:. 1331:37 1329:. 1306:. 1292:. 1288:. 1268:. 1260:, 1248:. 1205:βγ 1035:αi 1026:αi 939:LH 933:T4 831:αs 822:αs 769:βγ 734:βγ 726:βγ 674:βγ 625:. 605:. 463:, 402:, 356:, 313:, 298:. 278:, 270:, 263:. 228:. 212:, 208:, 200:, 196:, 188:, 175:. 164:. 152:) 148:(G 140:(G 132:(G 109:. 5330:: 5302:: 5050:/ 5046:/ 4929:e 4922:t 4915:v 4896:) 4892:( 4883:) 4879:( 4870:) 4866:( 4857:) 4853:( 4844:) 4840:( 4831:) 4827:( 4818:) 4814:( 4638:e 4631:t 4624:v 4396:3 4391:2 4386:1 4374:C 4369:B 4364:A 4347:2 4342:1 4325:3 4320:2 4229:G 4209:G 4155:G 4145:G 4137:G 3838:4 3836:- 3760:( 3746:e 3739:t 3732:v 3571:: 3552:: 3433:: 3253:2 3248:1 3236:: 2999:γ 2997:G 2966:β 2964:G 2867:α 2865:G 2818:: 2782:/ 2768:: 2687:e 2680:t 2673:v 2547:4 2542:3 2537:2 2532:1 2437:/ 2282:e 2275:t 2268:v 2235:. 2211:: 2205:8 2184:. 2162:: 2143:. 2131:: 2108:. 2088:: 2065:. 2041:: 2033:: 2006:. 1981:. 1951:: 1924:. 1902:: 1883:) 1869:. 1834:. 1812:: 1782:. 1770:: 1746:. 1724:: 1697:. 1675:. 1642:. 1589:. 1569:: 1561:: 1538:. 1509:. 1485:: 1458:. 1446:: 1423:. 1401:: 1395:7 1371:. 1349:. 1337:: 1314:. 1300:: 1294:7 1213:. 1203:G 1194:γ 1190:β 1188:G 1169:G 1159:G 1138:) 1131:) 1121:) 1109:( 1084:3 1076:3 1068:2 1052:G 1043:G 1033:G 1024:G 1019:. 999:. 917:( 895:) 881:) 829:G 820:G 805:α 801:α 797:α 781:α 757:α 730:α 722:α 718:α 686:i 682:s 678:α 670:α 583:γ 579:β 575:α 567:α 498:. 437:. 391:. 372:. 345:. 150:γ 142:β 134:α 46:- 34:. 20:)

Index

G-proteins
Protein G

Phosducin
transducin

Guanosine diphosphate

Guanosine triphosphate
family of proteins
molecular switches
cell
guanosine triphosphate
guanosine diphosphate
enzymes
GTPases
monomeric
small GTPases
heterotrimeric G protein
complexes
alpha
subunits
dimeric complex
beta-gamma complex
G protein-coupled receptors
cell membrane
Signaling molecules
cascade of further signaling events
hormones
neurotransmitters

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