<table><tr><td colspan='2'>[[6orv]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ORV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6ORV FirstGlance]. <br>
<table><tr><td colspan='2'>[[6orv]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ORV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6ORV FirstGlance]. <br>
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[[Category: Human]]
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Large Structures]]
Revision as of 23:17, 6 March 2020
Non-peptide agonist (TT-OAD2) bound to the Glucagon-Like peptide-1 (GLP-1) Receptor
6orv is a 5 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
[GNAS2_HUMAN] Pseudopseudohypoparathyroidism;Pseudohypoparathyroidism type 1A;Progressive osseous heteroplasia;Polyostotic fibrous dysplasia;Monostotic fibrous dysplasia;Pseudohypoparathyroidism type 1C;Pseudohypoparathyroidism type 1B;McCune-Albright syndrome. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry. Most affected individuals have defects in methylation of the gene. In some cases microdeletions involving the STX16 appear to cause loss of methylation at exon A/B of GNAS, resulting in PHP1B. Paternal uniparental isodisomy have also been observed. The disease is caused by mutations affecting the gene represented in this entry. The disease is caused by mutations affecting the gene represented in this entry.
Function
[GNAS2_HUMAN] Guanine nucleotide-binding proteins (G proteins) function as transducers in numerous signaling pathways controlled by G protein-coupled receptors (GPCRs) (PubMed:17110384). Signaling involves the activation of adenylyl cyclases, resulting in increased levels of the signaling molecule cAMP (PubMed:26206488, PubMed:8702665). GNAS functions downstream of several GPCRs, including beta-adrenergic receptors (PubMed:21488135). Stimulates the Ras signaling pathway via RAPGEF2 (PubMed:12391161).[1][2][3][4][5] [GBG2_HUMAN] Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction (By similarity). [GBB1_HUMAN] Guanine nucleotide-binding proteins (G proteins) are involved as a modulator or transducer in various transmembrane signaling systems. The beta and gamma chains are required for the GTPase activity, for replacement of GDP by GTP, and for G protein-effector interaction.[6] [GLP1R_HUMAN] This is a receptor for glucagon-like peptide 1. The activity of this receptor is mediated by G proteins which activate adenylyl cyclase.
Publication Abstract from PubMed
Class B G-protein-coupled receptors are major targets for the treatment of chronic diseases, including diabetes and obesity(1). Structures of active receptors reveal peptide agonists engage deep within the receptor core, leading to an outward movement of extracellular loop 3 and the tops of transmembrane helices 6 and 7, an inward movement of transmembrane helix 1, reorganization of extracellular loop 2 and outward movement of the intracellular side of transmembrane helix 6, resulting in G-protein interaction and activation(2-6). Here we solved the structure of a non-peptide agonist, TT-OAD2, bound to the glucagon-like peptide-1 (GLP-1) receptor. Our structure identified an unpredicted non-peptide agonist-binding pocket in which reorganization of extracellular loop 3 and transmembrane helices 6 and 7 manifests independently of direct ligand interaction within the deep transmembrane domain pocket. TT-OAD2 exhibits biased agonism, and kinetics of G-protein activation and signalling that are distinct from peptide agonists. Within the structure, TT-OAD2 protrudes beyond the receptor core to interact with the lipid or detergent, providing an explanation for the distinct activation kinetics that may contribute to the clinical efficacy of this compound series. This work alters our understanding of the events that drive the activation of class B receptors.
Activation of the GLP-1 receptor by a non-peptidic agonist.,Zhao P, Liang YL, Belousoff MJ, Deganutti G, Fletcher MM, Willard FS, Bell MG, Christe ME, Sloop KW, Inoue A, Truong TT, Clydesdale L, Furness SGB, Christopoulos A, Wang MW, Miller LJ, Reynolds CA, Danev R, Sexton PM, Wootten D Nature. 2020 Jan;577(7790):432-436. doi: 10.1038/s41586-019-1902-z. Epub 2020 Jan, 8. PMID:31915381[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Pak Y, Pham N, Rotin D. Direct binding of the beta1 adrenergic receptor to the cyclic AMP-dependent guanine nucleotide exchange factor CNrasGEF leads to Ras activation. Mol Cell Biol. 2002 Nov;22(22):7942-52. PMID:12391161
↑ Gao X, Sadana R, Dessauer CW, Patel TB. Conditional stimulation of type V and VI adenylyl cyclases by G protein betagamma subunits. J Biol Chem. 2007 Jan 5;282(1):294-302. Epub 2006 Nov 16. PMID:17110384 doi:http://dx.doi.org/10.1074/jbc.M607522200
↑ Thiele S, de Sanctis L, Werner R, Grotzinger J, Aydin C, Juppner H, Bastepe M, Hiort O. Functional characterization of GNAS mutations found in patients with pseudohypoparathyroidism type Ic defines a new subgroup of pseudohypoparathyroidism affecting selectively Gsalpha-receptor interaction. Hum Mutat. 2011 Jun;32(6):653-60. doi: 10.1002/humu.21489. Epub 2011 Apr 12. PMID:21488135 doi:http://dx.doi.org/10.1002/humu.21489
↑ Brand CS, Sadana R, Malik S, Smrcka AV, Dessauer CW. Adenylyl Cyclase 5 Regulation by Gbetagamma Involves Isoform-Specific Use of Multiple Interaction Sites. Mol Pharmacol. 2015 Oct;88(4):758-67. doi: 10.1124/mol.115.099556. Epub 2015 Jul , 23. PMID:26206488 doi:http://dx.doi.org/10.1124/mol.115.099556
↑ Farfel Z, Iiri T, Shapira H, Roitman A, Mouallem M, Bourne HR. Pseudohypoparathyroidism, a novel mutation in the betagamma-contact region of Gsalpha impairs receptor stimulation. J Biol Chem. 1996 Aug 16;271(33):19653-5. PMID:8702665
↑ Johnston CA, Kimple AJ, Giguere PM, Siderovski DP. Structure of the parathyroid hormone receptor C terminus bound to the G-protein dimer Gbeta1gamma2. Structure. 2008 Jul;16(7):1086-94. PMID:18611381 doi:http://dx.doi.org/10.1016/j.str.2008.04.010
↑ Zhao P, Liang YL, Belousoff MJ, Deganutti G, Fletcher MM, Willard FS, Bell MG, Christe ME, Sloop KW, Inoue A, Truong TT, Clydesdale L, Furness SGB, Christopoulos A, Wang MW, Miller LJ, Reynolds CA, Danev R, Sexton PM, Wootten D. Activation of the GLP-1 receptor by a non-peptidic agonist. Nature. 2020 Jan;577(7790):432-436. doi: 10.1038/s41586-019-1902-z. Epub 2020 Jan, 8. PMID:31915381 doi:http://dx.doi.org/10.1038/s41586-019-1902-z
