1MQ0 image
Deposition Date 2002-09-13
Release Date 2003-11-04
Last Version Date 2025-10-01
Entry Detail
PDB ID:
1MQ0
Keywords:
HYDROLASE
Title:
Crystal Structure of Human Cytidine Deaminase
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Host Organism:
Escherichia coli BL21
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.40 Å
R-Value Free:
0.26
R-Value Work:
0.21
Space Group:
P 21 21 2
1MQ0 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Cytidine Deaminase
Gene (Uniprot):CDA
Mutagens:K27Q
Chain IDs:A, B
Chain Length:140
Number of Molecules:2
Biological Source:Homo sapiens
UniProt ID:P32320 Pfam ID:PF00383 EC:3.5.4.5
Ligand Molecules
BRD
ZN
Primary Citation
Structure of human cytidine deaminase bound to a potent inhibitor
J.Med.Chem. 48 658 660 (2005)
PMID: 15689149 DOI: 10.1021/jm0496279

Abstact

Human cytidine deaminase (CDA) is an enzyme prominent for its role in catalyzing metabolic processing of nucleoside-type anticancer and antiviral agents. It is thus a promising target for the development of small molecule therapeutic adjuvants. We report the first crystal structure of human CDA as a complex with a tight-binding inhibitor, diazepinone riboside 1. The structure reveals that inhibitor 1 is able to establish a canonical pi/pi-interaction with a key active site residue, Phe 137.

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Disease

Primary Citation of related structures
1JTK