ISDA

Deposition Date 2009-04-28

Release Date 2009-05-12

Last Version Date 2024-05-22

Entry Detail

PDB ID:

2KI9

Keywords:

MEMBRANE PROTEIN

Title:

Human cannabinoid receptor-2 helix 6

Biological Source:

Source Organism:

(Taxon ID: ) (Taxon ID: )

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cannabinoid receptor 2
Gene (Uniprot):CNR2
Chain IDs:A
Chain Length:33
Number of Molecules:1
Biological Source:

UniProt ID:P34972

Ligand Molecules

Primary Citation

Structural biology of human cannabinoid receptor-2 helix 6 in membrane-mimetic environments.

Tiburu, E.K, Tyukhtenko, S, Deshmukh, L, Vinogradova, O, Janero, D.R, Makriyannis, A.Show

Biochem.Biophys.Res.Commun. 384 243 248 (2009)

PMID: 19397896 DOI: 10.1016/j.bbrc.2009.04.099

Abstact

We detail the structure and dynamics of a synthetic peptide corresponding to transmembrane helix 6 (TMH6) of human cannabinoid receptor-2 (hCB2) in biomembrane-mimetic environments. The peptide's NMR structural biology is characterized by two alpha-helical domains bridged by a flexible, nonhelical hinge region containing a highly-conserved CWFP motif with an environmentally sensitive, Pro-based conformational switch. Buried within the peptide's flexible region, W(258) may hydrogen-bond with L(255) to help stabilize the Pro-kinked hCB2 TMH6 structure and position C(257) advantageously for interaction with agonist ligands. These characteristics of hCB2 TMH6 are potential structural features of ligand-induced hCB2 activation in vivo.

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Primary Citation of related structures