DATP(dGTP)—DNA purinetransferase

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 ${\displaystyle \rightleftharpoons }$ deoxyribose triphosphate + DNA

(2) dGTP + depurinated DNA ${\displaystyle \rightleftharpoons }$ deoxyribose triphosphate + DNA

dATP(dGTP)—DNA purinetransferase
Identifiers
EC no.	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
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The purine residue is transferred on to the apurinic site forming a normal glycosylic bond.