Magnesium chelatase
| Magnesium chelatase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
ExPASy NiceZyme view | | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
| Magnesium chelatase, ChlI subunit | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||||
| Symbol | Mg_chelatse_chII | ||||||||||
| Pfam | PF01078 | ||||||||||
| InterPro | IPR000523 | ||||||||||
| |||||||||||
| CobN/magnesium chelatase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | CobN/Mg_chltase | ||||||||
| Pfam | PF02514 | ||||||||
| InterPro | IPR003672 | ||||||||
| |||||||||
Magnesium-chelatase is a three-component enzyme (
photosynthetic
growth:
protoporphyrin IX + Mg2+
+ ATP + H
2O ADP + phosphate + Mg-protoporphyrin IX + 2 H+
+ ATP + H
2O ADP + phosphate + Mg-protoporphyrin IX + 2 H+
The four
substrates of this enzyme are ATP, protoporphyrin IX, Mg2+, and H2O; its four products are ADP, phosphate, Mg-protoporphyrin IX, and H+
.
This enzyme belongs to the family of
biosynthetic pathway to chlorophylls
.
See also
References
- Walker CJ, Weinstein JD (1991). "In vitro assay of the chlorophyll biosynthetic enzyme Mg-chelatase: resolution of the activity into soluble and membrane-bound fractions". Proc. Natl. Acad. Sci. U.S.A. 88 (13): 5789–93. PMID 11607197.
- Walker CJ, Willows RD (Oct 15, 1997). "Mechanism and regulation of Mg-chelatase". Biochem. J. 327 (2): 321–33. PMID 9359397.
- Al-Karadaghi S; Hansson, A; Hansson, M; Olsen, JG; Gough, S; Willows, RD; Al-Karadaghi, S (2001). "Interplay between an AAA module and an integrin I domain may regulate the function of magnesium chelatase". J. Mol. Biol. 311 (1): 111–22. PMID 11469861.
