8gut

From Proteopedia

(Difference between revisions)

Current revision

Cryo-EM structure of LEI-CB2-Gi complex

Structural highlights

8gut is a 5 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Electron Microscopy, Resolution 2.98Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CNR2_HUMAN Heterotrimeric G protein-coupled receptor for endocannabinoid 2-arachidonoylglycerol mediating inhibition of adenylate cyclase. May function in inflammatory response, nociceptive transmission and bone homeostasis.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Cannabinoid CB(2) receptor (CB(2)R) agonists are investigated as therapeutic agents in the clinic. However, their molecular mode-of-action is not fully understood. Here, we report the discovery of LEI-102, a CB(2)R agonist, used in conjunction with three other CBR ligands (APD371, HU308, and CP55,940) to investigate the selective CB(2)R activation by binding kinetics, site-directed mutagenesis, and cryo-EM studies. We identify key residues for CB(2)R activation. Highly lipophilic HU308 and the endocannabinoids, but not the more polar LEI-102, APD371, and CP55,940, reach the binding pocket through a membrane channel in TM1-TM7. Favorable physico-chemical properties of LEI-102 enable oral efficacy in a chemotherapy-induced nephropathy model. This study delineates the molecular mechanism of CB(2)R activation by selective agonists and highlights the role of lipophilicity in CB(2)R engagement. This may have implications for GPCR drug design and sheds light on their activation by endogenous ligands.

Structural basis of selective cannabinoid CB(2) receptor activation.,Li X, Chang H, Bouma J, de Paus LV, Mukhopadhyay P, Paloczi J, Mustafa M, van der Horst C, Kumar SS, Wu L, Yu Y, van den Berg RJBHN, Janssen APA, Lichtman A, Liu ZJ, Pacher P, van der Stelt M, Heitman LH, Hua T Nat Commun. 2023 Mar 15;14(1):1447. doi: 10.1038/s41467-023-37112-9. PMID:36922494^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Tao Q, McAllister SD, Andreassi J, Nowell KW, Cabral GA, Hurst DP, Bachtel K, Ekman MC, Reggio PH, Abood ME. Role of a conserved lysine residue in the peripheral cannabinoid receptor (CB2): evidence for subtype specificity. Mol Pharmacol. 1999 Mar;55(3):605-13. PMID:10051546
↑ Feng W, Song ZH. Effects of D3.49A, R3.50A, and A6.34E mutations on ligand binding and activation of the cannabinoid-2 (CB2) receptor. Biochem Pharmacol. 2003 Apr 1;65(7):1077-85. PMID:12663043
↑ Kishimoto S, Gokoh M, Oka S, Muramatsu M, Kajiwara T, Waku K, Sugiura T. 2-arachidonoylglycerol induces the migration of HL-60 cells differentiated into macrophage-like cells and human peripheral blood monocytes through the cannabinoid CB2 receptor-dependent mechanism. J Biol Chem. 2003 Jul 4;278(27):24469-75. Epub 2003 Apr 23. PMID:12711605 doi:http://dx.doi.org/10.1074/jbc.M301359200
↑ Anand U, Otto WR, Sanchez-Herrera D, Facer P, Yiangou Y, Korchev Y, Birch R, Benham C, Bountra C, Chessell IP, Anand P. Cannabinoid receptor CB2 localisation and agonist-mediated inhibition of capsaicin responses in human sensory neurons. Pain. 2008 Sep 15;138(3):667-80. doi: 10.1016/j.pain.2008.06.007. Epub 2008 Aug, 9. PMID:18692962 doi:http://dx.doi.org/10.1016/j.pain.2008.06.007
↑ Li X, Chang H, Bouma J, de Paus LV, Mukhopadhyay P, Paloczi J, Mustafa M, van der Horst C, Kumar SS, Wu L, Yu Y, van den Berg RJBHN, Janssen APA, Lichtman A, Liu ZJ, Pacher P, van der Stelt M, Heitman LH, Hua T. Structural basis of selective cannabinoid CB(2) receptor activation. Nat Commun. 2023 Mar 15;14(1):1447. PMID:36922494 doi:10.1038/s41467-023-37112-9

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/8gut"

@@ Line 3: / Line 3: @@
 <StructureSection load='8gut' size='340' side='right'caption='[[8gut]], [[Resolution|resolution]] 2.98&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[8gut]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Homo_sapiens_neanderthalensis Homo sapiens neanderthalensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8GUT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8GUT FirstGlance]. <br>
+<table><tr><td colspan='2'>[[8gut]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8GUT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8GUT FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KO8:1-[[4-[5-fluoranyl-6-[(oxan-4-ylamino)methyl]pyridin-2-yl]phenyl]methyl]-3-(2-methylpropyl)imidazolidine-2,4-dione'>KO8</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.98&#8491;</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KO8:1-[[4-[5-fluoranyl-6-[(oxan-4-ylamino)methyl]pyridin-2-yl]phenyl]methyl]-3-(2-methylpropyl)imidazolidine-2,4-dione'>KO8</scene></td></tr>
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8gut FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8gut OCA], [https://pdbe.org/8gut PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8gut RCSB], [https://www.ebi.ac.uk/pdbsum/8gut PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8gut ProSAT]</span></td></tr>
 </table>
 == Function ==
-[https://www.uniprot.org/uniprot/GNAI1_HUMAN GNAI1_HUMAN] Guanine nucleotide-binding proteins (G proteins) are involved as modulators or transducers in various transmembrane signaling systems. The G(i) proteins are involved in hormonal regulation of adenylate cyclase: they inhibit the cyclase in response to beta-adrenergic stimuli. The inactive GDP-bound form prevents the association of RGS14 with centrosomes and is required for the translocation of RGS14 from the cytoplasm to the plasma membrane. May play a role in cell division.<ref>PMID:17635935</ref> <ref>PMID:17264214</ref>
+[https://www.uniprot.org/uniprot/CNR2_HUMAN CNR2_HUMAN] Heterotrimeric G protein-coupled receptor for endocannabinoid 2-arachidonoylglycerol mediating inhibition of adenylate cyclase. May function in inflammatory response, nociceptive transmission and bone homeostasis.<ref>PMID:10051546</ref> <ref>PMID:12663043</ref> <ref>PMID:12711605</ref> <ref>PMID:18692962</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 18: / Line 19: @@
 </div>
 <div class="pdbe-citations 8gut" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Transducin 3D structures|Transducin 3D structures]]
 == References ==
 <references/>
@@ Line 23: / Line 27: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Homo sapiens neanderthalensis]]
 [[Category: Large Structures]]
 [[Category: Chang H]]

8gut

From Proteopedia

Current revision

Cryo-EM structure of LEI-CB2-Gi complex

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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