Activating Compound | Comment | Organism | Structure |
---|---|---|---|
2-mercaptoethanol | slight activation | Solanum tuberosum | |
cysteine | activation | Solanum tuberosum | |
cysteine | slight | Solanum tuberosum | |
glutathione | slight stimulation | Solanum tuberosum | |
additional information | not activated by indoleacetic acid and gibberellic acid | Solanum tuberosum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Ag+ | 1 mM, complete inhibition | Solanum tuberosum | |
Fe2+ | 1 mM, approx. 40% inhibition of synthesis | Solanum tuberosum | |
Hg2+ | 1 mM, complete inhibition | Solanum tuberosum | |
additional information | not inhibited by 2-mercaptoethanol; not inhibited by agarose; not inhibited by gibberellic acid, indolyl-3-acetic acid; not inhibited by Ni2+ | Solanum tuberosum | |
p-chloromercuribenzoate | - |
Solanum tuberosum |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | kinetic data | Solanum tuberosum | |
0.5 | - |
starch | fast isoenzyme, starch phosphorolysis | Solanum tuberosum | |
0.8 | - |
starch | slow isoenzyme, starch phosphorolysis | Solanum tuberosum | |
1.1 | - |
amylose | fast isoenzyme, amylose phosphorolysis | Solanum tuberosum | |
1.3 | - |
glycogen | fast isoenzyme, glycogen phosphorolysis | Solanum tuberosum | |
3.1 | - |
amylose | slow isoenzyme, amylose phosphorolysis | Solanum tuberosum | |
6.5 | - |
glycogen | slow isoenzyme, glycogen phosphorolysis | Solanum tuberosum | |
6.7 | - |
starch | slow isoenzyme, starch synthesis | Solanum tuberosum | |
8 | - |
starch | fast isoenzyme, starch synthesis | Solanum tuberosum | |
14.3 | - |
amylose | slow isoenzyme, amylose synthesis | Solanum tuberosum | |
20 | - |
amylose | fast isoenzyme, amylose synthesis | Solanum tuberosum | |
22.2 | - |
glycogen | slow isoenzyme, glycogen synthesis | Solanum tuberosum | |
40 | - |
glycogen | fast isoenzyme, glycogen synthesis | Solanum tuberosum |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | slight activation | Solanum tuberosum | |
Mg2+ | activation | Solanum tuberosum | |
Mn2+ | activation | Solanum tuberosum | |
Mn2+ | slight | Solanum tuberosum | |
additional information | not activated by Cu2+ | Solanum tuberosum | |
additional information | not activated by Zn2+ | Solanum tuberosum |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
40000 | - |
x * 40000, fast isozyme, SDS-PAGE | Solanum tuberosum |
104000 | - |
x * 104000, slow isozyme, SDS-PAGE | Solanum tuberosum |
165000 | - |
fast isozyme, gel filtration | Solanum tuberosum |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Solanum tuberosum | - |
cv. Adelheid or Rosa | - |
Purification (Comment) | Organism |
---|---|
2 isozymes: termed slow and fast, heat treatment, ammonium sulfate, DEAE-cellulose, preparative gel electrophoresis | Solanum tuberosum |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
tuber | - |
Solanum tuberosum | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
1.61 | - |
fast isozyme | Solanum tuberosum |
2.67 | - |
slow isozyme | Solanum tuberosum |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
amylose + glucose 1-phosphate | - |
Solanum tuberosum | amylose + phosphate | - |
? | |
glycogen + glucose 1-phosphate | - |
Solanum tuberosum | glycogen + phosphate | - |
? | |
starch + glucose 1-phosphate | best substrate | Solanum tuberosum | starch + phosphate | - |
r | |
starch + glucose 1-phosphate | soluble starch | Solanum tuberosum | starch + phosphate | - |
r | |
[(1->4)-alpha-D-glucosyl]n + phosphate | - |
Solanum tuberosum | [(1->4)-alpha-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate | - |
r |
Subunits | Comment | Organism |
---|---|---|
? | x * 40000, fast isozyme, SDS-PAGE | Solanum tuberosum |
? | x * 104000, slow isozyme, SDS-PAGE | Solanum tuberosum |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | 35 | slow isozyme | Solanum tuberosum |
35 | - |
fast isozyme | Solanum tuberosum |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | - |
unprimed phosphorylase II, 80% loss of activity after 10 min, albumin protects | Solanum tuberosum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
additional information | - |
pI: 5.0, slow isozyme | Solanum tuberosum |
additional information | - |
pI: 5.5, fast isozyme | Solanum tuberosum |
5.2 | 5.6 | - |
Solanum tuberosum |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
4 | 8 | approx. half-maximal activity at pH 4 and pH 8, slow isozyme | Solanum tuberosum |
4.2 | 7.6 | approx. half-maximal activity at pH 4.2 and 7.6, fast isozyme | Solanum tuberosum |