1PVS image
Deposition Date 2003-06-28
Release Date 2004-06-08
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1PVS
Keywords:
HYDROLASE
Title:
3-methyladenine Glcosylase II(AlkA) Hypoxanthine complex
Biological Source:
Source Organism:
Escherichia coli (Taxon ID: 562)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.40 Å
R-Value Free:
0.29
R-Value Work:
0.23
Space Group:
P 1 21 1
1PVS validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:DNA-3-methyladenine glycosylase II
Gene (Uniprot):alkA
Chain IDs:A, B
Chain Length:282
Number of Molecules:2
Biological Source:Escherichia coli
UniProt ID:P04395 Pfam ID:PF06029, PF00730 EC:3.2.2.21
Ligand Molecules
7HP
Primary Citation
3-methyladenine-DNA glycosylase II: the crystal structure of an AlkA-hypoxanthine complex suggests the possibility of product inhibition.
Bioconjug.Chem. 13 403 407 (2002)
PMID: 12009927 DOI: 10.1021/bc015527v

Abstact

Escherichia coli (E. coli) protein 3-methyladenine-DNA glycosylase II (AlkA) functions primarily by removing alkylation damage from duplex and single stranded DNA. A crystal structure of AlkA was refined to 2.0 A resolution. This structure in turn was used to refine an AlkA-hypoxanthine (substrate) complex structure to 2.4 A resolution. The complex structure shows hypoxanthine located in AlkA's active site stacked between residues W218 and Y239. The structural analysis of the AlkA and AlkA-hypoxanthine structures indicate that free hypoxanthine binding in the active site may inhibit glycosylase activity.

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Primary Citation of related structures
1PVS
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