5OCK

Crystal structure of ACPA E4 in complex with CEP1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.185 

wwPDB Validation 3D Report Full Report



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
  • Structures With Same Primary Citation

  • 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.


    Organizational Affiliation

    Karolinska Institutet, Stockholm, Sweden, and Southern Medical University, Guangzhou, China.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Human ACPA E4 Fab fragment - Heavy chainH221Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
CEP1 peptide (from enolase)A21Homo sapiensMutation(s): 0 
Gene Names: ENO1ENO1L1MBPB1MPB1
EC: 4.2.1.11
Find proteins for P06733 (Homo sapiens)
Explore P06733 
Go to UniProtKB:  P06733
NIH Common Fund Data Resources
PHAROS  P06733
Protein Feature View
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  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Human ACPA E4 Fab fragment - Light chainL217Homo sapiensMutation(s): 0 
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
PCA
Query on PCA
HL-PEPTIDE LINKINGC5 H7 N O3GLN
CIR
Query on CIR
AL-PEPTIDE LINKINGC6 H13 N3 O3ARG
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.183 
  • R-Value Observed: 0.185 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.296α = 90
b = 101.048β = 101.03
c = 52.109γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
xia2data reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



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
    Changes: Data collection, Database references
  • Version 2.0: 2020-03-11
    Changes: Atomic model, Data collection, Database references, Polymer sequence