Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Homo sapiens | mechanistic basis for the physiological function of PARP-1 in the dynamics of the local modulation of chromatin structure. PARP-1 activation upon binding to base-unpaired regions and stem-loops structures in DNA leads to a local PAR modification of histones and non-histone proteins at genomic sites where such DNA structures are formed. Subsequent PARP-1 automodification results in its dissociation from DNA leading to an enzymatic self-inactivation thus ensuring a transient character of chromatin ADP-ribosylation. In combination with the PAR-glycohydrolase degradation of ADP-ribose polymers on acceptor proteins, PARP-1 interaction with DNA secondary structures provides a mechanism for local and transient chromatin modification by PAR during physiological nuclear processes | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | mechanistic basis for the physiological function of PARP-1 in the dynamics of the local modulation of chromatin structure. PARP-1 activation upon binding to base-unpaired regions and stem-loops structures in DNA leads to a local PAR modification of histones and non-histone proteins at genomic sites where such DNA structures are formed. Subsequent PARP-1 automodification results in its dissociation from DNA leading to an enzymatic self-inactivation thus ensuring a transient character of chromatin ADP-ribosylation. In combination with the PAR-glycohydrolase degradation of ADP-ribose polymers on acceptor proteins, PARP-1 interaction with DNA secondary structures provides a mechanism for local and transient chromatin modification by PAR during physiological nuclear processes | Homo sapiens | ? | - |
? | |
NAD+ + histone H1 | - |
Homo sapiens | nicotinamide + (ADP-D-ribosyl)-histone H1 | - |
? |
Synonyms | Comment | Organism |
---|---|---|
poly(ADP-ribose) polymerase-1 | - |
Homo sapiens |