1q91 Summary

pdbe.org/1q91
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Crystal structure of human mitochondrial deoxyribonucleotidase in complex with the inhibitor DPB-T

The structure was published by Rinaldo-Matthis, A., Rampazzo, C., Balzarini, J., Reichard, P., Bianchi, V., and Nordlund, P., in 2004 in a paper entitled "Crystal structures of the mitochondrial deoxyribonucleotidase in complex with two specific inhibitors" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 1.6 Å and deposited in 2003.

The experimental data on which the structure is based was also deposited.

The PDB entry contains the structure of 5(3)-deoxyribonucleotidase. This molecule has the UniProt identifier Q9NPB1 (NT5M_HUMAN)search. The sample contained 197 residues which is < 90% of the natural sequence. Out of 197 residues 194 were observed and are deposited in the PDB.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule is most likely monomeric.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A 5(3)-deoxyribonucleotidase Q9NPB1 (32-228) (NT5M_HUMAN)search Homo sapienssearch < 90% 197 98%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
Q9NPB1 (32 - 228) 5(3)-deoxyribonucleotidase Homo sapiens

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A 5'(3')-deoxyribonucleotidase (dNT-2)search Rossmann foldsearch, Deoxyribonucleotidase; domain 2search 5' nucleotidase, deoxy (Pyrimidine), cytosolic type C protein (NT5C)search

Chain ID Biological process (GO) Molecular function (GO)
A (Q9NPB1) deoxyribonucleotide catabolic processsearch 5'-nucleotidase activitysearch

Chain InterPro annotation
A 5'(3')-deoxyribonucleotidasesearch HAD-like domainsearch