General Stability | Organism |
---|---|
much enzyme activity is lost upon dialysis of the preparation against destilled water | Avena sativa |
repeated freezing and thawing inactivate phosphodiesterase | Avena sativa |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
ADP | - |
Avena sativa | |
ATP | - |
Avena sativa | |
CN- | - |
Avena sativa | |
Cu2+ | slight inhibition | Avena sativa | |
CuSO4 | - |
Avena sativa | |
EDTA | - |
Avena sativa | |
FAD | - |
Avena sativa | |
Hg2+ | - |
Avena sativa | |
HgCl2 | - |
Avena sativa | |
KH2PO4 | slight inhibition | Avena sativa | |
Na3AsO4 | slight inhibition | Avena sativa | |
NAD+ | competitive | Avena sativa | |
NADP+ | - |
Avena sativa | |
NaF | slight inhibition | Avena sativa | |
phosphate | slight inhibition | Avena sativa | |
Urea | slight inhibition | Avena sativa |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.4 | - |
p-nitrophenylthymidine 5'-phosphate | - |
Avena sativa |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Ca2+ | activation | Avena sativa | |
Co2+ | activation | Avena sativa | |
divalent cations | activation | Avena sativa | |
divalent cations | required for activity | Avena sativa | |
Mg2+ | activation | Avena sativa | |
Zn2+ | activation | Avena sativa |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Avena sativa | - |
oat | - |
Purification (Comment) | Organism |
---|---|
- |
Avena sativa |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
leaf | - |
Avena sativa | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.183 | - |
- |
Avena sativa |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
bis(p-nitrophenyl) phosphate + H2O | - |
Avena sativa | ? | - |
? | |
DNA + H2O | denatured DNA. Native DNA is resistant | Avena sativa | DNA(n-1) + 2'-deoxynucleoside 5'-phosphate | - |
? | |
additional information | no activity with 2',3'-cyclic nucleotides | Avena sativa | ? | - |
? | |
additional information | enzyme does not have a strict base specificity, it does not attack oligonucleotides with a 3'-phosphate terminal | Avena sativa | ? | - |
? | |
additional information | broad substrate specificity | Avena sativa | ? | - |
? | |
p-nitrophenylthymidine 5'-phosphate + H2O | - |
Avena sativa | 5'-TMP + p-nitrophenol | - |
? | |
poly A + H2O | - |
Avena sativa | 5'-AMP | - |
? | |
poly C + H2O | - |
Avena sativa | 5'-CMP | - |
? | |
poly U + H2O | - |
Avena sativa | 5'-UMP | - |
? | |
poly(I) + H2O | slowly | Avena sativa | 5'-IMP | - |
? | |
polynucleotides + H2O | specific for 3'-5'-direction from the 3'-hydroxyl terminal in a stepwise manner | Avena sativa | polynucleotides(n-1) + 5'-mononucleotides | - |
? | |
RNA + H2O | highly polymerized RNA: hydrolyzed at medium speed, single-stranded RNA: slowly, tRNA: not a substrate | Avena sativa | RNA(n-1) + nucleoside 5'-phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
alkaline phosphodiesterase | - |
Avena sativa |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
80 | - |
0.1 M Tris-acetate buffer, pH 6.8, 5 min: only 30% loss of original activity, enzyme shows considerable heat stability | Avena sativa |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
9.3 | - |
- |
Avena sativa |