Activating Compound | Comment | Organism | Structure |
---|---|---|---|
phosphate | - |
Escherichia coli | |
phosphate | degradation activity of chloroplast PNPase is dramatically enhanced, polymerization activity in the absence of phosphate | Spinacia oleracea |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
phosphate | inhibition of chloroplast PNPase polymerization activity | Spinacia oleracea | |
Poly(G) | inhibition of exoribonuclease activity due to its formation of a strong tertiary structure | Spinacia oleracea |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
chloroplast | - |
Spinacia oleracea | 9507 | - |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
RNAn + a nucleoside diphosphate | Escherichia coli | - |
RNAn+1 + phosphate | - |
r | |
RNAn + a nucleoside diphosphate | Spinacia oleracea | chloroplast PNPase is most probably responsible for polyadenylation of RNA | RNAn+1 + phosphate | - |
r |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Spinacia oleracea | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
poly(A) + ADP | - |
Escherichia coli | poly(A)+1 + phosphate | - |
r | |
poly(A) + ADP | chloroplast PNPase has both exonuclease and poly(A) polymerase activity, phosphate enhances RNA degradation activity, ADP inhibits degradation and enhances poly(A) polymerization, ADP best substrate | Spinacia oleracea | poly(A)+1 + phosphate | - |
r | |
poly(G) + GDP | - |
Escherichia coli | poly(G)+1 + phosphate | - |
r | |
poly(G) + GDP | - |
Spinacia oleracea | poly(G)+1 + phosphate | - |
r | |
RNA + ATP | polymerization in the absence of phosphate | Spinacia oleracea | RNA+1 + diphosphate | - |
r | |
RNA + CTP | polymerization in the absence of phosphate | Spinacia oleracea | RNA+1 + diphosphate | - |
r | |
RNA + GTP | polymerization in the absence of phosphate | Spinacia oleracea | RNA+1 + diphosphate | - |
r | |
RNA + UTP | polymerization in the absence of phosphate | Spinacia oleracea | RNA+1 + diphosphate | - |
r | |
RNAn + a nucleoside diphosphate | - |
Escherichia coli | RNAn+1 + phosphate | - |
r | |
RNAn + a nucleoside diphosphate | chloroplast PNPase is most probably responsible for polyadenylation of RNA | Spinacia oleracea | RNAn+1 + phosphate | - |
r |