| Parent Class: | EC-Numbers → 2 -- Transferases → 2.1 -- Transferring one-carbon groups → 2.1.1 -- Methyltransferases |
Synonyms: bchQ (gene name)
Systematic Name: S-adenosyl-L-methionine:8,12-diethyl-3-vinylbacteriochlorophyllide-d C-82-methyltransferase
Unification Links: BRENDA:2.1.1.332, ENZYME:2.1.1.332, IUBMB-ExplorEnz:2.1.1.332
Reaction:
S-adenosyl-L-methionine + 12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d → S-adenosyl-L-homocysteine + 12-ethyl-8-isobutyl-3-vinylbacteriochlorophyllide d + H+,
S-adenosyl-L-methionine + 8,12-diethyl-3-vinylbacteriochlorophyllide d → S-adenosyl-L-homocysteine + 12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d + H+
Enzymes and Genes:
bacteriochlorophyllide d C-82-methyltransferase:
bchQ (
Chlorobium phaeobacteroides BS1
)
bacteriochlorophyllide d C-82-methyltransferase:
bchQ (
Chlorobium phaeovibrioides DSM 265
)
bacteriochlorophyllide d C-82-methyltransferase:
bchQ (
Chlorobaculum tepidum TLS
)
Summary:
The enzyme, found in green sulfur bacteria (
Chlorobiaceae) and green flimentous bacteria (
Chloroflexaceae), is a radical S-adenosyl-L-methionine (AdoMet) enzyme and contains a [4Fe4S] cluster. It adds one or two methyl groups at the C82 position of bacteriochlorophylls of the c, d, and e types. These methylations play a role in fine-tuning the structural arrangement of the bacteriochlorophyll aggregates in chlorosomes and therefore directly influences the chlorosomes absorption properties.
Citations: [Gomez07]
References
Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 46(D1):D633-D639 2018
Page generated by Pathway Tools version 28.5 (software by SRI International) on Sat Mar 29, 2025, BIOCYC14A.
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