Activating Compound | Comment | Organism | Structure |
---|---|---|---|
Borate | 60% activation at pH 7.6 | Porphyra sp. |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Al3+ | - |
Porphyra sp. | |
Ca2+ | - |
Porphyra sp. | |
Cd2+ | - |
Porphyra sp. | |
Cu2+ | - |
Porphyra sp. | |
EDTA | - |
Porphyra sp. | |
KCN | - |
Porphyra sp. | |
NH4F | - |
Porphyra sp. | |
Ni2+ | - |
Porphyra sp. |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
additional information | activity is dependent on the presence of a bi- or tervalent cation which is not Mg2+ | Porphyra sp. |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
porphyran | Porphyra sp. | eliminates sulfate from the D-galactose 6-sulfate residues of porphyran producing 3,6-anhydrogalactose residues | sulfate + porphyran containing 3,6-anhydrogalactose residues | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Porphyra sp. | - |
- |
- |
Purification (Comment) | Organism |
---|---|
partial | Porphyra sp. |
Storage Stability | Organism |
---|---|
4°C, gradual loss of activity in solution | Porphyra sp. |
room temperature, stable for at least several months as a freeze-dried powder | Porphyra sp. |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
porphyran | eliminates sulfate from the D-galactose 6-sulfate residues of porphyran producing 3,6-anhydrogalactose residues | Porphyra sp. | sulfate + porphyran containing 3,6-anhydrogalactose residues | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.6 | 7.8 | sodium tetraborate/HCl buffer | Porphyra sp. |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
6.8 | 9.2 | pH 6.8: about 45% of activity maximum, pH 9.2: about 35% of activity maximum | Porphyra sp. |