5FN7

Crystal structure of human CD45 extracellular region, domains d1-d2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Initiation of T Cell Signaling by Cd45 Segregation at 'Close Contacts'.

Chang, V.T.Fernandes, R.A.Ganzinger, K.A.Lee, S.F.Siebold, C.Mccoll, J.Jonsson, P.Palayret, M.Harlos, K.Coles, C.H.Jones, E.Y.Lui, Y.Huang, E.Gilbert, R.J.Klenerman, D.Aricescu, A.R.Davis, S.J.

(2016) Nat.Immunol. 17: 574

  • DOI: 10.1038/ni.3392
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • It has been proposed that the local segregation of kinases and the tyrosine phosphatase CD45 underpins T cell antigen receptor (TCR) triggering, but how such segregation occurs and whether it can initiate signaling is unclear. Using structural and bi ...

    It has been proposed that the local segregation of kinases and the tyrosine phosphatase CD45 underpins T cell antigen receptor (TCR) triggering, but how such segregation occurs and whether it can initiate signaling is unclear. Using structural and biophysical analysis, we show that the extracellular region of CD45 is rigid and extends beyond the distance spanned by TCR-ligand complexes, implying that sites of TCR-ligand engagement would sterically exclude CD45. We also show that the formation of 'close contacts', new structures characterized by spontaneous CD45 and kinase segregation at the submicron-scale, initiates signaling even when TCR ligands are absent. Our work reveals the structural basis for, and the potent signaling effects of, local CD45 and kinase segregation. TCR ligands have the potential to heighten signaling simply by holding receptors in close contacts.


    Organizational Affiliation

    Radcliffe Department of Medicine and MRC Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE C
A, B
186Homo sapiensMutation(s): 0 
Gene Names: PTPRC (CD45)
EC: 3.1.3.48
Find proteins for P08575 (Homo sapiens)
Go to Gene View: PTPRC
Go to UniProtKB:  P08575
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
HG
Query on HG

Download SDF File 
Download CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.202 
  • Space Group: P 63
Unit Cell:
Length (Å)Angle (°)
a = 149.610α = 90.00
b = 149.610β = 90.00
c = 52.730γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data scaling
autoSHARPphasing
HKL-2000data reduction
SHELXDphasing
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2016-03-23
    Type: Initial release
  • Version 1.1: 2016-03-30
    Type: Database references
  • Version 1.2: 2016-05-18
    Type: Database references