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Literature summary for 6.5.1.2 extracted from

  • Brotz-Oesterhelt, H.; Knezevic, I.; Bartel, S.; Lampe, T.; Warnecke-Eberz, U.; Ziegelbauer, K.; Habich, D.; Labischinski, H.
    Specific and potent inhibition of NAD+-dependent DNA ligase by pyridochromanones (2003), J. Biol. Chem., 278, 39435-39442.
    View publication on PubMed
Search for more literature for 6.5.1.2

Application

Application Comment Organism
medicine potential target for antiobiotics Escherichia coli

Inhibitors

Inhibitors Comment Organism Structure
pyridochromanones differently substituted compounds tested and all found to be inhibitory, competitive with NAD+, inhibitory in nano-molar rage without affecting human DNA-ligase (ATP-depentend) activity Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
NAD+ + (deoxyribonucleotide)n + (deoxyribonucleotide)m Escherichia coli DNA-repair, phosphodiester bond formation between adjacent 5'-phosphate and 3'-hydroxyl groups in double-stranded DNA AMP + nicotinamide nucleotide + (deoxyribonucleotide)n+m
-
 ?

Organism

Organism UniProt Comment Textmining
Escherichia coli
-
-
-

Reaction

Reaction Comment Organism Reaction ID
ATP + (deoxyribonucleotide)n-3'-hydroxyl + 5'-phospho-(deoxyribonucleotide)m = (deoxyribonucleotide)n+m + AMP + beta-nicotinamide D-nucleotide 3 steps of reaction: 1. adenylation of the ligase in the presence of NAD+, 2. transferring the adenylate moiety to the 5'-phosphate of the nicked DNA substrate, 3. sealing the nick through the formation of a phosphodiester bond Escherichia coli
a

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
NAD+ + (deoxyribonucleotide)n + (deoxyribonucleotide)m
-
 Escherichia coli AMP + nicotinamide nucleotide + (deoxyribonucleotide)n+m
-
 ?
NAD+ + (deoxyribonucleotide)n + (deoxyribonucleotide)m DNA-repair, phosphodiester bond formation between adjacent 5'-phosphate and 3'-hydroxyl groups in double-stranded DNA Escherichia coli AMP + nicotinamide nucleotide + (deoxyribonucleotide)n+m
-
 ?

Cofactor

Cofactor Comment Organism Structure
NAD+ required Escherichia coli