Protein Variants | Comment | Organism |
---|---|---|
D207N | altered restriction enzyme site, no measurable magnesium chelatase activity, ATPase activity not affected | Hordeum vulgare |
L111F | altered restriction enzyme site, no measurable magnesium chelatase activity, ATPase activity not affected | Hordeum vulgare |
R298K | altered restriction enzyme site, no measurable magnesium chelatase activity, ATPase activity not affected | Hordeum vulgare |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.026 | - |
ATP | pH 8.5, 32ºC | Hordeum vulgare |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + protoporphyrin IX + Mg2+ + H2O | Hordeum vulgare | - |
ADP + phosphate + Mg-protoporphyrin IX + H+ | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Hordeum vulgare | - |
barley | - |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
ATP + protoporphyrin IX + Mg2+ + H2O = ADP + phosphate + Mg-protoporphyrin IX + 2 H+ | this is the first committed step of chlorophyll biosynthesis and is a branchpoint of two major routes in the tetrapyrrole pathway | Hordeum vulgare |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
caryopsis | - |
Hordeum vulgare | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + protoporphyrin IX + Mg2+ + H2O | - |
Hordeum vulgare | ADP + phosphate + Mg-protoporphyrin IX + H+ | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 90000-130000, gel filtration, BchI subunit | Hordeum vulgare |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
32 | - |
assay at | Hordeum vulgare |