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Overview

Uniprot IDA0A8L2QG09
Protein NameInosine triphosphate pyrophosphatase
Gene NameItpa
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
174 AEMPKAEKNTISHRF

Function

Pyrophosphatase that hydrolyzes the non-canonical purine (dITP) as well as 2'-deoxy-N-6-hydroxylaminopurine triphosphate (dHAPTP) and xanthosine 5'-triphosphate (XTP) to their respective monophosphate derivatives. The enzyme does not distinguish between the deoxy- and ribose forms. Probably excludes non-canonical purines from RNA and DNA precursor pools, thus preventing their incorporation into RNA and DNA and avoiding chromosomal lesions

Protein Sequence

10 MAASLVGKKI 20 VFVTGNAKKL 30 EEVIQILGDK 40 FPCTLVAQKI 50 DLPEYQGEPD 60 EISIQKCQEA 70 ARQVQGPVLV 80 EDTCLCFNAL 90 GGLPGPYIQC 100 GFTEPHYVPA 110 GLYQLLAGFE 120 DKSAYALCTF 130 ALSTGDPSQP 140 VLLFRGKTPG 150 QIVMPRGSRD 160 FGWDPCFQPD 170 GYEQTYAEMP 180 KAEKNTISHR 190 FRALFKLQEY 200 FGVTDGAGDH

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005737 cytoplasm
Molecular Function GO:0035870 dITP diphosphatase activity
Molecular Function GO:0036220 ITP diphosphatase activity
Molecular Function GO:0046872 metal ion binding
Molecular Function GO:0000166 nucleotide binding
Molecular Function GO:0036222 XTP diphosphatase activity
Biological Process GO:0009204 deoxyribonucleoside triphosphate catabolic process
Biological Process GO:0009117 nucleotide metabolic process

Reference

[1] Chen Y, Sun W, Sun Z, Zhao H, Wu T et al.. Effect of electroacupuncture on hippocampal protein lactylation in a rat model of vascular dementia.. Front Neurol 16:1629474. 2025. PMID: 40963935.