EC Number   |
General Information |
Reference |
|---|
  4.2.1.169 | evolution |
phylogenetic relationships of BchF and BchV orthologues, overview |
-, 739109 |
| 4.2.1.169 | malfunction |
BcF deficiency impairs the production of both bacteriochlorophylls BChl a and BChl c. The bchV-deletion mutant possessing only BchF shows a significant decrease of the S-epimers and accumulations of C3-vinyl BChl c species, while the bchF-inactivated mutant, which still has BchV as a sole hydratase, shows higher ratios of S-epimeric bacteriochlorophyll c than the wild-type strain. A bchF and bchV double mutant is not viable, indicating that either bchF or bchV can partly substitute in the synthesis of bacteriochlorophyl a |
-, 739109 |
| 4.2.1.169 | malfunction |
deletion of bchF gene affects the composition of 31R/S-epimers in composite BChls c, the bchF-deleted mutant has nearly 100% R-stereochemistry in 8-ethyl-12-methyl- and 8,12-diethyl-BChls c, 9-12% S-stereochemistry in 8-propyl-12-ethyl-BChl c, and nearly 100% S-stereochemistry in 8-isobutyl-12-ethyl-BChl c |
-, 741107 |
| 4.2.1.169 | malfunction |
deletion of bchV gene affects the composition of 31R/S-epimers in composite BChls c, the bchV-deleted mutant has nearly 100% R-stereochemistry in 8-ethyl-12-methyl- and 8,12-diethyl-BChls c, 0-6% S-stereochemistry in 8-propyl-12-ethyl-BChl c, and very few 8-isobutyl-12-ethyl-BChl c |
-, 741107 |
| 4.2.1.169 | malfunction |
deletion of bchV gene affects the composition of 31R/S-epimers in composite BChls c: the bchV-deleted mutant has nearly 100% R-stereochemistry in [E,M]- and [E,E]BChls c, 0-6% S-stereochemistry in [P,E]BChl c, and very few [I,E]BChl c |
748858 |
| 4.2.1.169 | malfunction |
further methylation at the 82- and 20-positions suppresses the in vitro hydration of the 3-vinyl group by the BchF/V hydratases |
-, 748860 |
| 4.2.1.169 | malfunction |
in the bchV knockout mutant strain, about 85% of the total BChl c is normal, except that the most highly methylated species (8-iso-butyl, 12-ethyl BChl c), normally observed in the wild-type strain, is absent. The mutant shows the changes in BChl c aggregation and absorption properties, light harvesting and growth at low light intensities are seriously impaired in the bchV mutant |
-, 741110 |
| 4.2.1.169 | malfunction |
pigment analyses of the bchF-inactivated mutant, which still has BchV as a sole hydratase, show higher ratios of S-epimeric bacteriochlorophyll c than the wild-type strain, while the bchV-mutant possessing only BchF shows a significant decrease of the S-epimers and accumulations of C3-vinyl BChl c species |
-, 748684 |
| 4.2.1.169 | malfunction |
the bchV-deletion mutant possessing only BchF shows a significant decrease of the S-epimers and accumulations of C3-vinyl BChl c species, while the bchF-inactivated mutant, which still has BchV as a sole hydratase, shows higher ratios of S-epimeric bacteriochlorophyll c than the wild-type strain. The heightened prevalence of S-stereoisomers in the mutant is more remarkable at lower light intensities and causes a red shift of the chlorosomal Qy absorption band leading to advantages for light-energy transfer. A bchF and bchV double mutant is not viable, indicating that either bchF or bchV can partly substitute in the synthesis of bacteriochlorophyl a |
-, 739109 |
| 4.2.1.169 | metabolism |
enzyme involvement in the biosynthetic pathways of BChl c homologues and epimers, overview |
748858 |
