Activating Compound | Comment | Organism | Structure |
---|---|---|---|
D-fructose 1,6-diphosphate | only PK II, shifting sigmoidal kinetics to hyperbolic curves, decrease in Km | Meganyctiphanes norvegica |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
oxalate | PK I, 80% inhibition at 0.3 mM, PK II, 50% inhibition at 0.3 mM | Meganyctiphanes norvegica |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.024 | - |
phosphoenolpyruvate | 15°, pH 7.0, isoform PK I, in winter | Meganyctiphanes norvegica | |
0.033 | - |
phosphoenolpyruvate | 15°, pH 7.0, isoform PK I, in summer | Meganyctiphanes norvegica | |
0.181 | - |
phosphoenolpyruvate | 15°, pH 7.0, isoform PK II, in summer | Meganyctiphanes norvegica | |
0.193 | - |
phosphoenolpyruvate | 15°, pH 7.0, isoform PK II, in winter | Meganyctiphanes norvegica |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Meganyctiphanes norvegica | - |
nordic krill, isoforms PK I and PK II | - |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cephalothorax | isoform PK II | Meganyctiphanes norvegica | - |
muscle | abdominal muscle, PK I | Meganyctiphanes norvegica | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ADP + phosphoenolpyruvate | - |
Meganyctiphanes norvegica | ATP + pyruvate | - |
? |