1U34 | pdb_00001u34

3D NMR structure of the first extracellular domain of CRFR-2beta, a type B1 G-protein coupled receptor

• PDB DOI: https://doi.org/10.2210/pdb1U34/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2004-07-20 Released: 2004-09-07 
• Deposition Author(s): Grace, C.R., Perrin, M.H., DiGruccio, M.R., Miller, C.L., Rivier, J.E., Vale, W.W., Riek, R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

NMR structure and peptide hormone binding site of the first extracellular domain of a type B1 G protein-coupled receptor

Grace, C.R., Perrin, M.H., DiGruccio, M.R., Miller, C.L., Rivier, J.E., Vale, W.W., Riek, R.

(2004) Proc Natl Acad Sci U S A 101: 12836-12841

• PubMed: 15326300 
• DOI: https://doi.org/10.1073/pnas.0404702101
• Primary Citation Related Structures: 
  1U34


• PubMed Abstract: 
  

  The corticotropin-releasing factor (CRF) ligand family has diverse effects on the CNS, including the modulation of the stress response. The ligands' effects are mediated by binding to CRF G protein-coupled receptors. We have determined the 3D NMR structure of the N-terminal extracellular domain (ECD1) of the mouse CRF receptor 2beta, which is the major ligand recognition domain, and identified its ligand binding site by chemical-shift perturbation experiments. The fold is identified as a short consensus repeat (SCR), a common protein interaction module. Mutagenesis reveals the integrity of the hormone-binding site in the full-length receptor. This study proposes that the ECD1 captures the C-terminal segment of the ligand, whose N terminus then penetrates into the transmembrane region of the receptor to initiate signaling. Key residues of SCR in the ECD1 are conserved in the G protein-coupled receptor subfamily, suggesting the SCR fold in all of the ECD1s of this subfamily.

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Organizational Affiliation: 
• Structural Biology Laboratory, and The Clayton Foundation Laboratories for Peptide Biology, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 13.63 kDa 
• Atom Count: 954 
• Modeled Residue Count: 119 
• Deposited Residue Count: 119 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Corticotropin releasing factor receptor 2	A	119	Mus musculus	Mutation(s): 0
UniProt
Find proteins for Q60748 (Mus musculus) Explore Q60748  Go to UniProtKB:  Q60748

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-09-07 
Deposition Author(s): Grace, C.R., Perrin, M.H., DiGruccio, M.R., Miller, C.L., Rivier, J.E., Vale, W.W., Riek, R.

Revision History  

• Version 1.0: 2004-09-07
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-02
  Changes: Database references, Derived calculations
• Version 1.4: 2024-11-20
  Changes: Data collection, Structure summary