5OCK

Crystal structure of ACPA E4 in complex with CEP1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis of Cross-Reactivity of Anti-Citrullinated Protein Antibodies.

Ge, C.Xu, B.Liang, B.Lonnblom, E.Lundstrom, S.L.Zubarev, R.A.Ayoglu, B.Nilsson, P.Skogh, T.Kastbom, A.Malmstrom, V.Klareskog, L.Toes, R.E.M.Rispens, T.Dobritzsch, D.Holmdahl, R.

(2019) Arthritis Rheumatol 71: 210-221

  • DOI: 10.1002/art.40698
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Anti-citrullinated protein antibodies (ACPAs) develop many years before the clinical onset of rheumatoid arthritis (RA). This study was undertaken to address the molecular basis of the specificity and cross-reactivity of ACPAs from patients with RA.

    Anti-citrullinated protein antibodies (ACPAs) develop many years before the clinical onset of rheumatoid arthritis (RA). This study was undertaken to address the molecular basis of the specificity and cross-reactivity of ACPAs from patients with RA.


    Organizational Affiliation

    Karolinska Institutet, Stockholm, Sweden.,Karolinska Institutet, Stockholm, Sweden, and Southern Medical University, Guangzhou, China.,Uppsala University, Uppsala, Sweden.,KTH Royal Institute of Technology, Stockholm, Sweden.,Linköping University, Linköping, Sweden.,Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.,Leiden University Medical Center, Leiden, The Netherlands.,University of Amsterdam, Amsterdam, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Human ACPA E4 Fab fragment - Light chain
L
217N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Human ACPA E4 Fab fragment - Heavy chain
H
221N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
CEP1 peptide (from enolase)
A
21Homo sapiensMutation(s): 0 
Gene Names: ENO1 (ENO1L1, MBPB1, MPB1)
EC: 4.2.1.11
Find proteins for P06733 (Homo sapiens)
Go to Gene View: ENO1
Go to UniProtKB:  P06733
Small Molecules
Modified Residues  3 Unique
IDChainsTypeFormula2D DiagramParent
ACA
Query on ACA
A
PEPTIDE LINKINGC6 H13 N O2

--

PCA
Query on PCA
H, L
L-PEPTIDE LINKINGC5 H7 N O3GLU
CIR
Query on CIR
A
L-PEPTIDE LINKINGC6 H13 N3 O3ARG
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 39.296α = 90.00
b = 101.048β = 101.03
c = 52.109γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
Aimlessdata scaling
REFMACrefinement
xia2data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Knut and Alice Wallenberg FoundationSwedenKAW2010.0148
Swedish Research CouncilSweden2015-02662

Revision History 

  • Version 1.0: 2018-07-04
    Type: Initial release
  • Version 1.1: 2019-08-07
    Type: Data collection, Database references