ENZYME entry: EC 1.3.7.4
| Accepted Name |
|---|
| Phytochromobilin:ferredoxin oxidoreductase.
|
| Alternative Name(s) |
|---|
| P-Phi-B synthase. |
| PFB synthase. |
| Phytochromobilin synthase. |
| Reaction catalysed |
|---|
| (3Z)-phytochromobilin + oxidized ferredoxin <=> biliverdin IX-alpha + reduced ferredoxin |
| Comment(s) |
|---|
- Catalyzes the two-electron reduction of biliverdin IX-alpha.
- Can use [2Fe-2S] ferredoxins from a number of sources as acceptor but
not the [4Fe-4S] ferredoxin from Clostridium pasteurianum.
- The isomerization of (3Z)-phytochromobilin to (3E)-phytochromobilin
is thought to occur prior to covalent attachment to apophytochrome in
the plant cell cytoplasm.
- Flavodoxins can be used instead of ferredoxin.
|
| Cross-references |
|---|
| BRENDA | 1.3.7.4 |
| EC2PDB | 1.3.7.4 |
| ExplorEnz | 1.3.7.4 |
| PRIAM enzyme-specific profiles | 1.3.7.4 |
| KEGG Ligand Database for Enzyme Nomenclature | 1.3.7.4 |
| IUBMB Enzyme Nomenclature | 1.3.7.4 |
| IntEnz | 1.3.7.4 |
| MEDLINE | Find literature relating to 1.3.7.4 |
| MetaCyc | 1.3.7.4 |
| UniProtKB/Swiss-Prot |
|
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