4IML image
Deposition Date 2013-01-03
Release Date 2013-04-17
Last Version Date 2024-11-20
Entry Detail
PDB ID:
4IML
Keywords:
Title:
CrossFab binding to human Angiopoietin 2
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.93 Å
R-Value Free:
0.26
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Crossed heavy chain (VH-Ckappa)
Chain IDs:A (auth: H), C (auth: A)
Chain Length:245
Number of Molecules:2
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Molecule:Crossed light chain (VL-CH1)
Chain IDs:B (auth: L), D (auth: B)
Chain Length:213
Number of Molecules:2
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Crystal Structure of an Anti-Ang2 CrossFab Demonstrates Complete Structural and Functional Integrity of the Variable Domain.
Plos One 8 e61953 e61953 (2013)
PMID: 23613981 DOI: 10.1371/journal.pone.0061953

Abstact

Bispecific antibodies are considered as a promising class of future biotherapeutic molecules. They comprise binding specificities for two different antigens, which may provide additive or synergistic modes of action. There is a wide variety of design alternatives for such bispecific antibodies, including the "CrossMab" format. CrossMabs contain a domain crossover in one of the antigen-binding (Fab) parts, together with the "knobs-and-holes" approach, to enforce the correct assembly of four different polypeptide chains into an IgG-like bispecific antibody. We determined the crystal structure of a hAng-2-binding Fab in its crossed and uncrossed form and show that CH1-CL-domain crossover does not induce significant perturbations of the structure and has no detectable influence on target binding.

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Primary Citation of related structures