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Literature summary for 1.10.3.1 extracted from
- Properties of polyphenol oxidase from Alternaria tenuis (1979), J. Ferment. Technol., 57, 79-85.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 1-Phenyl-2-thiourea | - |
Alternaria alternata |  |
| 2-mercaptobenzothiazole | 1 mM, 94% inhibition | Alternaria alternata | |
| 2-mercaptoethanol | 1 mM, 97% inhibition | Alternaria alternata | |
| 8-hydroxyquinoline | - |
Alternaria alternata | |
| Ag+ | 1 mM, 60% inhibition | Alternaria alternata | |
| Al3+ | 1 mM, 89% inhibition | Alternaria alternata | |
| ascorbic acid | - |
Alternaria alternata | |
| CN- | 1 mM, 82% inhibition | Alternaria alternata | |
| Cuprizone | - |
Alternaria alternata | |
| cysteine | 1 mM, 92% inhibition | Alternaria alternata | |
| diethyldithiocarbamate | - |
Alternaria alternata | |
| Hg2+ | 1 mM, 84% inhibition | Alternaria alternata | |
| isoascorbic acid | 1 mM, 99% inhibition | Alternaria alternata | |
| Metabisulfite | 1 mM, 95% inhibition | Alternaria alternata | |
| NaHSO3 | - |
Alternaria alternata | |
| o-phenanthroline | - |
Alternaria alternata | |
| Sn2+ | 1 mM, 99% inhibition | Alternaria alternata | |
| Sodium azide | - |
Alternaria alternata | |
| Sodium bisulfite | 1 mM, 97% inhibition | Alternaria alternata | |
| Thiourea | 1 mM, 59% inhibition | Alternaria alternata | |
| Xanthogenate | 1 mM, 94% inhibition | Alternaria alternata | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.47 | - |
D-catechin | - |
Alternaria alternata | |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| Co2+ | 1 mM, slight stimulation | Alternaria alternata | |
| Cu+ | 1 mM, 234% activity | Alternaria alternata | |
| Cu2+ | 1 mM, 241% activity, enzyme contains 0.24% copper | Alternaria alternata | |
| Pb2+ | 1 mM, slight stimulation | Alternaria alternata | |
| Zn2+ | 1 mM, slight stimulation | Alternaria alternata | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Alternaria alternata | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| culture filtrate | - |
Alternaria alternata | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| 2,3-dihydroxybenzoic acid + O2 | - |
Alternaria alternata | ? | - |
? | |
| 3,4,5-trihydroxybenzoic acid + O2 | trivial name gallic acid | Alternaria alternata | ? | - |
? | |
| 4-methylcatechol + O2 | - |
Alternaria alternata | 4-methyl-o-benzoquinone | - |
? | |
| caffeic acid + 1/2 O2 | - |
Alternaria alternata | caffeoyl quinone + H2O | - |
? | |
| catechol + 1/2 O2 | no activity with phenol, 4-cresol, L-tyrosine and 4-coumaric acid | Alternaria alternata | 1,2-benzoquinone + H2O | - |
? | |
| chlorogenic acid + O2 | - |
Alternaria alternata | ? | - |
? | |
| D-catechin + O2 | - |
Alternaria alternata | ? | - |
? | |
| dopamine + O2 | - |
Alternaria alternata | 4-(2-aminoethyl)-1,2-benzoquinone + 2 H2O | - |
? | |
| epinephrine + O2 | - |
Alternaria alternata | ? | - |
? | |
| ferulic acid + O2 | - |
Alternaria alternata | ? | - |
? | |
| L-catechin + O2 | - |
Alternaria alternata | ? | - |
? | |
| phloroglucinol + O2 | - |
Alternaria alternata | ? | - |
? | |
| pyrogallol + O2 | - |
Alternaria alternata | ? | - |
? | |
| quercetin + O2 | - |
Alternaria alternata | ? | - |
? | |
| rutin + O2 | - |
Alternaria alternata | ? | - |
? | |
| shikimic acid + O2 | - |
Alternaria alternata | ? | - |
? | |
| tannic acid + O2 | - |
Alternaria alternata | ? | - |
? | |
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