3IWX image
Deposition Date 2009-09-03
Release Date 2009-09-22
Last Version Date 2024-02-21
Entry Detail
PDB ID:
3IWX
Keywords:
METAL TRANSPORT
Title:
Crystal structure of cisplatin bound to a human copper chaperone (dimer)
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.14 Å
R-Value Free:
0.22
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
P 65
3IWX validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Copper transport protein ATOX1
Gene (Uniprot):ATOX1
Chain IDs:A, B
Chain Length:68
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:O00244 Pfam ID:PF00403
Ligand Molecules
CPT
SO4
Primary Citation
Crystal structures of cisplatin bound to a human copper chaperone.
J.Am.Chem.Soc. 131 14196 14197 (2009)
PMID: 19807176 DOI: 10.1021/ja906363t

Abstact

Copper trafficking proteins, including the chaperone Atox1 and the P(1B)-type ATPase ATP7B, have been implicated in cellular resistance to the anticancer drug cisplatin. We have determined two crystal structures of cisplatin-Atox1 adducts that reveal platinum coordination by the conserved CXXC copper-binding motif. Direct interaction of cisplatin with this functionally relevant site has significant implications for understanding the molecular basis for resistance mediated by copper transport pathways.

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Primary Citation of related structures
3IWL