Macromolecule Content

• Total Structure Weight: 12.12 kDa 
• Atom Count: 852 
• Residue Count: 102 
• Unique protein chains: 1

1C8P

NMR STRUCTURE OF THE LIGAND BINDING DOMAIN OF THE COMMON BETA-CHAIN IN THE GM-CSF, IL-3 AND IL-5 RECEPTORS

• DOI: 10.2210/pdb1C8P/pdb
• Entry: 1C8P supersedes: 1D4Q
• BMRB: 4308

• Classification: MEMBRANE PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-10-05 Released: 2000-06-15 
• Deposition Author(s): Mulhern, T.D., D'Andrea, R.J., Gaunt, C., Vandeleur, L., Vadas, M.A., Lopez, A.F., Booker, G.W., Bagley, C.J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: LOWEST ENERGY 

Literature

The solution structure of the cytokine-binding domain of the common beta-chain of the receptors for granulocyte-macrophage colony-stimulating factor, interleukin-3 and interleukin-5.

Mulhern, T.D., Lopez, A.F., D'Andrea, R.J., Gaunt, C., Vandeleur, L., Vadas, M.A., Booker, G.W., Bagley, C.J.

(2000) J Mol Biol 297: 989-1001

• PubMed: 10736232 
• DOI: 10.1006/jmbi.2000.3610
• Primary Citation of Related Structures:  
  1C8P


• PubMed Abstract: 
  

The haemopoietic cytokines, granulocyte-macrophage colony-stimulating factor, interleukin-3 and interleukin-5 bind to cell-surface receptors comprising ligand-specific alpha-chains and a shared beta-chain. The beta-chain is the critical signalling subunit of the receptor and its fourth domain not only plays a critical role in interactions with ligands, hence in receptor activation, but also contains residues whose mutation can lead to ligand-independent activation of the receptor. We have determined the NMR solution structure of the isolated human fourth domain of the beta-chain. The protein has a fibronectin type III fold with a well-defined hydrophobic core and is stabilised by an extensive network of pi-cation interactions involving Trp and Arg side-chains, including two Trp residues outside the highly conserved Trp-Ser-Xaa-Trp-Ser motif (where Xaa is any amino acid) that is found in many cytokine receptors. Most of the residues implicated in factor-independent mutants localise to the rigid core of the domain or the pi-cation stack. The loops between the B and C, and the F and G strands, that contain residues important for interactions with cytokines, lie adjacent at the membrane-distal end of the domain, consistent with their being involved cooperatively in binding cytokines. The elucidation of the structure of the cytokine-binding domain of the beta-chain provides insight into the cytokine-dependent and factor-independent activation of the receptor.

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Related Citations: 

• 1H and 15N Chemical Shift Assignments for Domain 4 of the Common Beta-Chain of the IL-3, IL-5 and GM-CSF Receptors
  Mulhern, T.D., Bagley, C.J., Gaunt, C., Lopez, A.F., Vadas, M.A., D'Andrea, R.J., Booker, G.W.
  (1999) J Biomol NMR 14: 281

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Organizational Affiliation: 

Department of Biochemistry, University of Adelaide, Adelaide, 5005, Australia.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CYTOKINE RECEPTOR COMMON BETA CHAIN	A	102	Homo sapiens	Mutation(s): 0  Gene Names: CSF2RB, IL3RB, IL5RB
Find proteins for P32927 (Homo sapiens) Explore P32927  Go to UniProtKB:  P32927
NIH Common Fund Data Resources
PHAROS  P32927 GTEx  ENSG00000100368

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: LOWEST ENERGY 
• OLDERADO: 1C8P Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-10-05 
• Released Date: 2000-06-15 
Deposition Author(s): Mulhern, T.D., D'Andrea, R.J., Gaunt, C., Vandeleur, L., Vadas, M.A., Lopez, A.F., Booker, G.W., Bagley, C.J.
• This entry supersedes: 1D4Q

Revision History 

• Version 1.0: 2000-06-15
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance