DATP(dGTP)—DNA purinetransferase

DATP(dGTP)---DNA purinetransferase
Identifiers
EC number 2.6.99.1
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

DATP(dGTP)---DNA purinetransferase (EC 2.6.99.1) is an enzyme with systematic name dATP(dGTP):depurinated-DNA purine transferase.[1][2] This enzyme catalyses the following chemical reaction

(1) dATP + depurinated DNA deoxyribose triphosphate + DNA
(2) dGTP + depurinated DNA deoxyribose triphosphate + DNA

The purine residue is transferred on to the apurinic site forming a normal glycosylic bond.

References

  1. Deutsch, W.A.; Linn, S. (1979). "DNA binding activity from cultured human fibroblasts that is specific for partially depurinated DNA and that inserts purines into apurinic sites". Proc. Natl. Acad. Sci. USA. 76: 141–144. doi:10.1073/pnas.76.1.141. PMID 218192.
  2. Livneh, Z.; Elad, D.; Sperling, J. (1979). "Enzymatic insertion of purine bases into depurinated DNA in vitro". Proc. Natl. Acad. Sci. USA. 76: 1089–1093. doi:10.1073/pnas.76.3.1089. PMID 375225.

External links

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