Cloned (Comment) | Organism |
---|---|
expression in Spodoptera fugiperda cells via baculovirus vector, amino acid sequence analysis | Xenopus laevis |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
EDTA | - |
Xenopus laevis |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0032 | - |
N-dansyl-Tyr-Phe-Gly | + 2 mM L-ascorbate | Xenopus laevis | |
0.28 | - |
L-ascorbate | + 0.02 mM N-dansyl-Tyr-Phe-Gly | Xenopus laevis |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Cu2+ | a copper protein | Xenopus laevis | |
Cu2+ | Cu2+ is absolutely required for optimal activity | Xenopus laevis |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
39000 | - |
SDS-PAGE, gel filtration | Xenopus laevis |
39000 | - |
native wild-type enzyme | Xenopus laevis |
43000 | - |
recombinant wild-type enzyme, SDS-PAGE, gel filtration | Xenopus laevis |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
peptidylglycine + ascorbate + O2 | Xenopus laevis | - |
peptidyl(2-hydroxyglycine) + dehydroascorbate + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Xenopus laevis | - |
- |
- |
Purification (Comment) | Organism |
---|---|
native wild-type and recombinant from Spodoptera frugiperda cell expression system | Xenopus laevis |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
[peptide]-glycine + 2 ascorbate + O2 = [peptide]-(2S)-2-hydroxyglycine + 2 monodehydroascorbate + H2O | mechanism | Xenopus laevis |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
skin | - |
Xenopus laevis | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
16 | - |
purified recombinant enzyme | Xenopus laevis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
Ala-Ile-Gly-Val-Gly-Ala-Pro-Gly + ascorbate + O2 | - |
Xenopus laevis | Ala-Ile-Gly-Val-Gly-Ala-Pro-2-hydroxyglycine + dehydroascorbate + H2O | - |
? | |
dansyl-D-Tyr-Val-Gly + ascorbate + O2 | - |
Xenopus laevis | dansyl-D-Tyr-Val-2-hydroxyglycine + dehydroascorbate + H2O | - |
? | |
additional information | EC 1.14.17.3 is often called peptidylglycine alpha-amidating monooxygenase (PAM) and the alpha-amidated product is mentioned as the product of the reaction, but the alpha-amidation of glycine-extended peptides is a two-step process catalyzed by 2 enzymes: 1. EC 1.14.17.3: production of peptidyl(2-hydroxyglycine) by a copper, molecular oxygen and ascorbate-dependent peptidyl-glycine alpha-hydroxylating monooxygenase (PMH) and 2. conversion of the peptidyl-alpha-hydroxyglycine derivative into an alpha-amidated product at physiological pH by peptidyl-alpha-hydroxyglycine alpha-amidating lyase | Xenopus laevis | ? | - |
? | |
N-dansyl-L-Tyr-L-Phe-Gly + ascorbate + O2 | - |
Xenopus laevis | N-dansyl-L-Tyr-L-Phe-2-hydroxyglycine + dehydroascorbate + H2O | - |
r | |
peptidylglycine + ascorbate + O2 | - |
Xenopus laevis | peptidyl(2-hydroxyglycine) + dehydroascorbate + H2O | - |
? | |
peptidylglycine + ascorbate + O2 | COOH-terminal glycine | Xenopus laevis | peptidyl(2-hydroxyglycine) + dehydroascorbate + H2O | - |
? |
Synonyms | Comment | Organism |
---|---|---|
More | EC 1.14.17.3 is often called peptidylglycine alpha-amidating monooxygenase (PAM) and the alpha-amidated product is mentioned as the product of the reaction, but the alpha-amidation of glycine-extended peptides is a two-step process catalyzed by 2 enzymes: 1. EC 1.14.17.3: production of peptidyl(2-hydroxyglycine) by a copper, molecular oxygen and ascorbate-dependent peptidyl-glycine alpha-hydroxylating monooxygenase (PHM), 2. conversion of the peptidyl-alpha-hydroxyglycine derivative into an alpha-amidated product at physiological pH by peptidyl-alpha-hydroxyglycine alpha-amidating lyase (PHL) | Xenopus laevis |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | - |
assay at | Xenopus laevis |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
5.4 | - |
assay at, recombinant enzyme | Xenopus laevis |
5.5 | 6 | - |
Xenopus laevis |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ascorbate | dependent on | Xenopus laevis |