1lvq: Difference between revisions

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[[Image:1lvq.gif|left|200px]]


<!--
==IC3 of CB1 Bound to G(alpha)i==
The line below this paragraph, containing "STRUCTURE_1lvq", creates the "Structure Box" on the page.
<StructureSection load='1lvq' size='340' side='right'caption='[[1lvq]]' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1lvq]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LVQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1LVQ FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1lvq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1lvq OCA], [https://pdbe.org/1lvq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1lvq RCSB], [https://www.ebi.ac.uk/pdbsum/1lvq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1lvq ProSAT]</span></td></tr>
{{STRUCTURE_1lvq|  PDB=1lvq  |  SCENE= }}
</table>
 
== Function ==
'''IC3 of CB1 Bound to G(alpha)i'''
[https://www.uniprot.org/uniprot/CNR1_HUMAN CNR1_HUMAN] Involved in cannabinoid-induced CNS effects. Acts by inhibiting adenylate cyclase. Could be a receptor for anandamide. Inhibits L-type Ca(2+) channel current. Isoform 2 and isoform 3 have altered ligand binding.<ref>PMID:15620723</ref>
 
== References ==
 
<references/>
==Overview==
__TOC__
The structure of the C-terminal region of the third cytoplasmic loop (IC3) of the cannabinoid receptor one (CB1) bound to G(alphai1) has been determined using transferred nuclear Overhauser effects (NOEs). The wild-type IC3 sequence is helical when associated with G(alphai1). In contrast, a peptide containing the amino-acid inversion, Ala(341)-Leu(342) adopts a single turn. These findings correlate with the attenuated G(i) association of CB1 with the Ala(341)-Leu(342) mutation previously observed in vivo and the diminished stimulation of G(alphai1) GTPase activity by the corresponding peptide demonstrated in vitro here. These results, the first to report the structure of a GPCR domain while associated with G protein, imply the C-terminus of CB1 IC3, a region with high-sequence conservation among G-protein coupled receptors, must be helical for efficient coupling and activation of the G(i) protein.
</StructureSection>
 
[[Category: Homo sapiens]]
==About this Structure==
[[Category: Large Structures]]
1LVQ is a [[Single protein]] structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LVQ OCA].  
[[Category: Kendall DA]]
 
[[Category: McMurry JL]]
==Reference==
[[Category: Mierke DF]]
Cannabinoid receptor-G protein interactions: G(alphai1)-bound structures of IC3 and a mutant with altered G protein specificity., Ulfers AL, McMurry JL, Miller A, Wang L, Kendall DA, Mierke DF, Protein Sci. 2002 Oct;11(10):2526-31. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12237474 12237474]
[[Category: Miller A]]
[[Category: Single protein]]
[[Category: Ulfers AL]]
[[Category: Kendall, D A.]]
[[Category: Wang L]]
[[Category: McMurry, J L.]]
[[Category: Mierke, D F.]]
[[Category: Miller, A.]]
[[Category: Ulfers, A L.]]
[[Category: Wang, L.]]
[[Category: Alpha domain of g protein i]]
[[Category: Helix while bound]]
[[Category: Transferred no]]
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Latest revision as of 06:31, 1 May 2024

IC3 of CB1 Bound to G(alpha)i

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