The Enzyme Database

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EC 6.5.1.2     
Accepted name: DNA ligase (NAD+)
Reaction: NAD+ + (deoxyribonucleotide)n + (deoxyribonucleotide)m = AMP + β-nicotinamide D-nucleotide + (deoxyribonucleotide)n+m
Other name(s): polydeoxyribonucleotide synthase (NAD+); polynucleotide ligase (NAD+); DNA repair enzyme (ambiguous); DNA joinase (ambiguous); polynucleotide synthetase (nicotinamide adenine dinucleotide); deoxyribonucleic-joining enzyme (ambiguous); deoxyribonucleic ligase (ambiguous); deoxyribonucleic repair enzyme (ambiguous); deoxyribonucleic joinase (ambiguous); DNA ligase (ambiguous); deoxyribonucleate ligase (ambiguous); polynucleotide ligase (ambiguous); deoxyribonucleic acid ligase (ambiguous); polynucleotide synthetase (ambiguous); deoxyribonucleic acid joinase (ambiguous); DNA-joining enzyme (ambiguous); polynucleotide ligase (nicotinamide adenine dinucleotide)
Systematic name: poly(deoxyribonucleotide):poly(deoxyribonucleotide) ligase (AMP-forming, NMN-forming)
Comments: Catalyses the formation of a phosphodiester at the site of a single-strand break in duplex DNA. RNA can also act as substrate, to some extent. cf. EC 6.5.1.1, DNA ligase (ATP), EC 6.5.1.6, DNA ligase (ATP or NAD+), and EC 6.5.1.7, DNA ligase (ATP, ADP or GTP).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 37259-52-2
References:
1.  Zimmerman, S.B., Little, J.W., Oshinsky, C.K. and Gellert, M. Enzymatic joining of DNA strands: a novel reaction of diphosphopyridine nucleotide. Proc. Natl. Acad. Sci. USA 57 (1967) 1841–1848. [PMID: 4291949]
[EC 6.5.1.2 created 1972, modified 1976]
 
 


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