2VL5 image
Deposition Date 2008-01-08
Release Date 2008-03-18
Last Version Date 2024-10-16
Entry Detail
PDB ID:
2VL5
Keywords:
IMMUNE SYSTEM
Title:
Structure of anti-collagen type II FAb CIIC1
Biological Source:
Source Organism:
MUS MUSCULUS (Taxon ID: 10090)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.10 Å
R-Value Free:
0.28
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1 21 1
2VL5 validation report
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:CIIC1 ANTICOLLAGEN FAB
Chain IDs:A, C
Chain Length:218
Number of Molecules:2
Biological Source:MUS MUSCULUS
Polymer Type:polypeptide(L)
Molecule:CIIC1 ANTICOLLAGEN FAB
Chain IDs:B, D
Chain Length:218
Number of Molecules:2
Biological Source:MUS MUSCULUS
Primary Citation
The Crystal Structure of the Pathogenic Collagen Type II-Specific Mouse Monoclonal Antibody Ciic1 Fab: Structure to Function Analysis.
Mol.Immunol. 45 2196 ? (2008)
PMID: 18241923 DOI: 10.1016/J.MOLIMM.2007.12.005

Abstact

Monoclonal anti-collagen type II antibody CIIC1 is an arthritogenic autoantibody, which induces arthritis in mice. We crystallized and solved the structure of CIIC1 Fab molecule. Analysis of structure revealed an interaction between the CDR regions of one Fab to the CH1 domain of another Fab, which resembles an antibody-antigen interaction. ELISA experiments confirmed the cross-reactivity of both the full CIIC1 antibody and a single chain Fv fragment to other anti-collagen antibodies which are of different isotypes and epitope specificity. The rheumatoid factor like reactivity of CIIC1 antibody together with its collagen type II specificity may explain the pathogenicity of this antibody.

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Primary Citation of related structures
2VL5