Cloned (Comment) | Organism |
---|---|
expressed in Escherichia coli BL21(DE3) cells | Escherichia coli |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
NH4+ | stimulates enzyme activity at 10 mM | Escherichia coli |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
NAD+ + (deoxyribonucleotide)n-3'-hydroxyl + 5'-phospho-(deoxyribonucleotide)m | Escherichia coli | - |
(deoxyribonucleotide)n+m + AMP + beta-nicotinamide D-nucleotide | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Purification (Comment) | Organism |
---|---|
Ni-agarose column chromatography, and Superdex 200 gel filtration | Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | the enzyme is relatively tolerant of 5'-phosphate base mispairs and 5' N:abasic lesions | Escherichia coli | ? | - |
? | |
NAD+ + (deoxyribonucleotide)n-3'-hydroxyl + 5'-phospho-(deoxyribonucleotide)m | - |
Escherichia coli | (deoxyribonucleotide)n+m + AMP + beta-nicotinamide D-nucleotide | - |
? |
Synonyms | Comment | Organism |
---|---|---|
LigA | - |
Escherichia coli |
NAD+-dependent DNA ligase | - |
Escherichia coli |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NAD+ | - |
Escherichia coli |
General Information | Comment | Organism |
---|---|---|
physiological function | the enzyme repairs 3'-OH/5'-PO4 nicks in duplex DNA via reaction with NAD+ to form a covalent enzyme-(lysyl-Nzeta)-AMP intermediate, transfer of AMP to the nick 5'-PO4 to form an AppDNA intermediate (step 2), and attack of the nick 3'-OH on AppDNA to form a 3'-5' phosphodiester | Escherichia coli |