| EC |
2.5.1.133 |
| Accepted name: |
bacteriochlorophyll a synthase |
| Reaction: |
geranylgeranyl diphosphate + bacteriochlorophyllide a = geranylgeranyl-bacteriochlorophyllide a + diphosphate |
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For diagram of bacteriochlorophyl a biosynthesis, click here |
| Other name(s): |
bchG (gene name) |
| Systematic name: |
geranylgeranyl-diphosphate:bacteriochlorophyllide-a geranylgeranytransferase |
| Comments: |
The enzyme catalyses the addition of a geranylgeranyl hydrophobic chain to bacteriochlorophyllide a via an ester bond with the 17-propionate residue. The side chain is later modified to a phytyl chain, resulting in bacteriochlorophyll a. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Oster, U., Bauer, C.E. and Rüdiger, W. Characterization of chlorophyll a and bacteriochlorophyll a synthases by heterologous expression in Escherichia coli. J. Biol. Chem. 272 (1997) 9671–9676. [DOI] [PMID: 9092496] |
| 2. |
Addlesee, H.A., Fiedor, L. and Hunter, C.N. Physical mapping of bchG, orf427, and orf177 in the photosynthesis gene cluster of Rhodobacter sphaeroides: functional assignment of the bacteriochlorophyll synthetase gene. J. Bacteriol. 182 (2000) 3175–3182. [DOI] [PMID: 10809697] |
| 3. |
Garcia-Gil, L.J., Gich, F.B. and Fuentes-Garcia, X. A comparative study of bchG from green photosynthetic bacteria. Arch. Microbiol. 179 (2003) 108–115. [DOI] [PMID: 12560989] |
| 4. |
Saga, Y., Hirota, K., Harada, J. and Tamiaki, H. In vitro enzymatic activities of bacteriochlorophyll a synthase derived from the green sulfur photosynthetic bacterium Chlorobaculum tepidum. Biochemistry 54 (2015) 4998–5005. [DOI] [PMID: 26258685] |
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| [EC 2.5.1.133 created 2016] |
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