2JJS

Structure of human cd47 in complex with human signal regulatory protein (SIRP) alpha

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Paired Receptor Specificity Explained by Structures of Signal Regulatory Proteins Alone and Complexed with Cd47.

Hatherley, D., Graham, S.C., Turner, J., Harlos, K., Stuart, D.I., Barclay, A.N.

(2008) Mol.Cell 31: 266

  • DOI: 10.1016/j.molcel.2008.05.026
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • CD47 is a widely distributed cell-surface protein that acts a marker of self through interactions of myeloid and neural cells. We describe the high-resolution X-ray crystallographic structures of the immunoglobulin superfamily domain of CD47 alone an ...

    CD47 is a widely distributed cell-surface protein that acts a marker of self through interactions of myeloid and neural cells. We describe the high-resolution X-ray crystallographic structures of the immunoglobulin superfamily domain of CD47 alone and in complex with the N-terminal ligand-binding domain of signal regulatory protein alpha (SIRPalpha). The unusual and convoluted interacting face of CD47, comprising the N terminus and loops at the end of the domain, intercalates with the corresponding regions in SIRPalpha. We have also determined structures of the N-terminal domains of SIRPbeta, SIRPbeta(2), and SIRPgamma; proteins that are closely related to SIRPalpha but bind CD47 with negligible or reduced affinity. These results explain the specificity of CD47 for the SIRP family of paired receptors in atomic detail. Analysis of SIRPalpha polymorphisms suggests that these, as well as the activating SIRPs, may have evolved to counteract pathogen binding to the inhibitory SIRPalpha receptor.

    Organizational Affiliation: 

    Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TYROSINE-PROTEIN PHOSPHATASE NON-RECEPTOR TYPE SUBSTRATE 1
A, B
126Homo sapiensMutation(s): 0 
Gene Names: SIRPA (BIT, MFR, MYD1, PTPNS1, SHPS1, SIRP)
Find proteins for P78324 (Homo sapiens)
Go to Gene View: SIRPA
Go to UniProtKB:  P78324
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
LEUKOCYTE SURFACE ANTIGEN CD47
C, D
127Homo sapiensMutation(s): 1 
Gene Names: CD47 (MER6)
Find proteins for Q08722 (Homo sapiens)
Go to Gene View: CD47
Go to UniProtKB:  Q08722
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD
Download SDF File 
Download CCD File 
A, B, C, D
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
NAG
Query on NAG
Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
C, D
L-PEPTIDE LINKINGC5 H7 N O3GLU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.477α = 90.00
b = 72.410β = 95.01
c = 89.826γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
MOLREPphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-08-05
    Type: Initial release
  • Version 1.1: 2011-05-07
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance