1.17.98.2: bacteriochlorophyllide c C-71-hydroxylase
This is an abbreviated version!
For detailed information about bacteriochlorophyllide c C-71-hydroxylase, go to the full flat file.
Reaction
2 S-adenosyl-L-methionine
+
Synonyms
7-methyl bacteriochlorophyllide c oxygenase, bciD
ECTree
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General Information on EC 1.17.98.2 - bacteriochlorophyllide c C-71-hydroxylase
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GENERAL INFORMATION 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
malfunction
alteration of photosynthetic pigments in mutants with deletion in both genes - bciD and bchU
physiological function
physiological function
a mutant lacking BciD exclusively gives bacteriochlorophyll-c, but not bacteriochlorophyll-e. The mutation drastically alters the homolog and epimer composition of the pigment. The methylation at the 82-position in the mutant cells proceeds to create bacteriochlorophyll-c carrying large alkyl substituents at this position. Correspondingly, the content of bacteriochlorophyll-c having the (S)-configuration at the chiral 31-position remarkably increases and accounts for 80.6% of the total bacteriochlorophyll-c. A new bacteriochlorophyll-c bearing the bulky triple 82-methylated neopentyl substituent at the 8-position is produced
physiological function
bciD mutant cells are green in color, and accumulate bacteriochlorophyll-c homologs bearing the 7-methyl group, compared to C7-formylated bacteriochlorophyll-e homologs in the wild-type. In the mutant, (31S)-8-isobutyl-12-ethyl-bacteriochlorophyll-c is unusually predominant
