2KI9

Human cannabinoid receptor-2 helix 6

• PDB DOI: https://doi.org/10.2210/pdb2KI9/pdb
• BMRB: 16268

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• Deposited: 2009-04-28 Released: 2009-05-12 
• Deposition Author(s): Deshmukh, L., Vinogradova, O., Tiburu, E.K., Tyukhtenko, S., Janero, D.R., Makriyannis, A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 15 
• Selection Criteria: structures with the lowest energy 

Literature

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.

(2009) Biochem Biophys Res Commun 384: 243-248

• PubMed: 19397896 
• DOI: https://doi.org/10.1016/j.bbrc.2009.04.099
• Primary Citation of Related Structures:  
  2KI9


• PubMed Abstract: 
  

  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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Organizational Affiliation: 

Center for Drug Discovery and Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115-5000, USA.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3.55 kDa 
• Atom Count: 249 
• Modelled Residue Count: 33 
• Deposited Residue Count: 33 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cannabinoid receptor 2	A	33	Homo sapiens	Mutation(s): 0  Gene Names: CNR2 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P34972 (Homo sapiens) Explore P34972  Go to UniProtKB:  P34972
PHAROS:  P34972 GTEx:  ENSG00000188822

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 90 
• Conformers Submitted: 15 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-05-12 
Deposition Author(s): Deshmukh, L., Vinogradova, O., Tiburu, E.K., Tyukhtenko, S., Janero, D.R., Makriyannis, A.

Revision History  

• Version 1.0: 2009-05-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2022-03-16
  Changes: Data collection, Database references, Derived calculations
• Version 1.3: 2024-05-22
  Changes: Data collection