2J12 image
Deposition Date 2006-08-08
Release Date 2006-08-29
Last Version Date 2024-11-20
Entry Detail
PDB ID:
2J12
Title:
Ad37 fibre head in complex with CAR D1
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
1.50 Å
R-Value Free:
0.16
R-Value Work:
0.14
R-Value Observed:
0.14
Space Group:
I 2 3
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:FIBER PROTEIN
Chain IDs:A
Chain Length:194
Number of Molecules:1
Biological Source:Human adenovirus D37
Polymer Type:polypeptide(L)
Molecule:COXSACKIEVIRUS AND ADENOVIRUS RECEPTOR
Gene (Uniprot):CXADR
Chain IDs:B
Chain Length:128
Number of Molecules:1
Biological Source:HOMO SAPIENS
Ligand Molecules
Primary Citation
Structural and Mutational Analysis of Human Ad37 and Canine Adenovirus 2 Fiber Heads in Complex with the D1 Domain of Coxsackie and Adenovirus Receptor.
J.Biol.Chem. 281 33704 ? (2006)
PMID: 16923808 DOI: 10.1074/JBC.M605316200

Abstact

Adenovirus fibers from most serotypes bind the D1 domain of coxsackie and adenovirus receptor (CAR), although the binding residues are not strictly conserved. To understand this further, we determined the crystal structures of canine adenovirus serotype 2 (CAV-2) and the human adenovirus serotype 37 (HAd37) in complex with human CAR D1 at 2.3 and 1.5A resolution, respectively. Structure comparison with the HAd12 fiber head-CAR D1 complex showed that the overall topology of the interaction is conserved but that the interfaces differ in number and identity of interacting residues, shape complementarity, and degree of conformational adaptation. Using surface plasmon resonance, we characterized the binding affinity to CAR D1 of wild type and mutant CAV-2 and HAd37 fiber heads. We found that CAV-2 has the highest affinity but fewest direct interactions, with the reverse being true for HAd37. Moreover, we found that conserved interactions can have a minor contribution, whereas serotype-specific interactions can be essential. These results are discussed in the light of virus evolution and design of adenovirus vectors for gene transfer.

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