2koe

From Proteopedia

(Difference between revisions)

Revision as of 07:34, 29 April 2020

Human cannabinoid receptor 1 - helix 7/8 peptide

Structural highlights

2koe is a 1 chain structure. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

We report the NMR solution structure of a synthetic 40-mer (T(377)-E(416)) that encompasses human cannabinoid receptor-1 (hCB1) transmembrane helix 7 (TMH7) and helix 8 (H8) [hCB1(TMH7/H8)] in 30% trifluoroethanol/H(2)O. Structural features include, from the peptide's amino terminus, a hydrophobic alpha-helix (TMH7); a loop-like, 11 residue segment featuring a pronounced Pro-kink within the conserved NPxxY motif; a short amphipathic alpha-helix (H8) orthogonal to TMH7 with cationic and hydrophobic amino-acid clusters; and an unstructured C-terminal end. The hCB1(TMH7/H8) NMR solution structure suggests multiple electrostatic amino-acid interactions, including an intrahelical H8 salt bridge and a hydrogen-bond network involving the peptide's loop-like region. Potential cation-pi and cation-phenolic OH interactions between Y(397) in the TMH7 NPxxY motif and R(405) in H8 are identified as candidate structural forces promoting interhelical microdomain formation. This microdomain may function as a flexible molecular hinge during ligand-induced hCB1 conformer transitions.

NMR solution structure of human cannabinoid receptor-1 helix 7/8 peptide: candidate electrostatic interactions and microdomain formation.,Tyukhtenko S, Tiburu EK, Deshmukh L, Vinogradova O, Janero DR, Makriyannis A Biochem Biophys Res Commun. 2009 Dec 18;390(3):441-6. Epub 2009 Sep 18. PMID:19766594^[2]

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

References

↑ Ryberg E, Vu HK, Larsson N, Groblewski T, Hjorth S, Elebring T, Sjogren S, Greasley PJ. Identification and characterisation of a novel splice variant of the human CB1 receptor. FEBS Lett. 2005 Jan 3;579(1):259-64. PMID:15620723 doi:http://dx.doi.org/10.1016/j.febslet.2004.11.085
↑ Tyukhtenko S, Tiburu EK, Deshmukh L, Vinogradova O, Janero DR, Makriyannis A. NMR solution structure of human cannabinoid receptor-1 helix 7/8 peptide: candidate electrostatic interactions and microdomain formation. Biochem Biophys Res Commun. 2009 Dec 18;390(3):441-6. Epub 2009 Sep 18. PMID:19766594 doi:10.1016/j.bbrc.2009.09.053

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2koe"

@@ Line 1: / Line 1: @@
 ==Human cannabinoid receptor 1 - helix 7/8 peptide==
-<StructureSection load='2koe' size='340' side='right' caption='[[2koe]], [[NMR_Ensembles_of_Models | 18 NMR models]]' scene=''>
+<StructureSection load='2koe' size='340' side='right'caption='[[2koe]], [[NMR_Ensembles_of_Models | 18 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2koe]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KOE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KOE FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2koe]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KOE OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2KOE FirstGlance]. <br>
-</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2koe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2koe OCA], [http://pdbe.org/2koe PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2koe RCSB], [http://www.ebi.ac.uk/pdbsum/2koe PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2koe ProSAT]</span></td></tr>
+</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2koe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2koe OCA], [http://pdbe.org/2koe PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2koe RCSB], [http://www.ebi.ac.uk/pdbsum/2koe PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2koe ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 31: / Line 31: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Deshmukh, L]]
 [[Category: Janero, D]]

2koe

From Proteopedia

Revision as of 07:34, 29 April 2020

Human cannabinoid receptor 1 - helix 7/8 peptide

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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