KEGG   ORTHOLOGY: K13601Help
Entry
K13601                      KO                                     

Name
bchQ
Definition
bacteriochlorophyllide d C-8(2)-methyltransferase [EC:2.1.1.332]
Pathway
Porphyrin and chlorophyll metabolism
Brite
KEGG Orthology (KO) [BR:ko00001]
 Metabolism
  Metabolism of cofactors and vitamins
   00860 Porphyrin and chlorophyll metabolism
    K13601  bchQ; bacteriochlorophyllide d C-8(2)-methyltransferase
Enzymes [BR:ko01000]
 2. Transferases
  2.1  Transferring one-carbon groups
   2.1.1  Methyltransferases
    2.1.1.332  bacteriochlorophyllide d C-82-methyltransferase
     K13601  bchQ; bacteriochlorophyllide d C-8(2)-methyltransferase
BRITE hierarchy
Other DBs
Genes
CTE: 
CT1777(bchQ)
CPC: 
CLZ: 
CCH: 
CPH: 
CPB: 
CLI: 
PVI: 
PLT: 
PPH: 
PAA: 
Paes_1806
PROC: 
Ptc2401_01903
CTS: 
Ctha_1292
 » show all
TaxonomyKoalaUniProt
Reference
  Authors
Gomez Maqueo Chew A, Frigaard NU, Bryant DA
  Title
Bacteriochlorophyllide c C-8(2) and C-12(1) methyltransferases are essential for  adaptation to low light in Chlorobaculum tepidum.
  Journal
J Bacteriol 189:6176-84 (2007)
DOI:10.1128/JB.00519-07
  Sequence
[cte:CT1777]
Reference
  Authors
Chew AG, Bryant DA
  Title
Chlorophyll biosynthesis in bacteria: the origins of structural and functional diversity.
  Journal
Annu Rev Microbiol 61:113-29 (2007)
DOI:10.1146/annurev.micro.61.080706.093242
KEGG   ENZYME: 2.1.1.332Help
Entry
EC 2.1.1.332                Enzyme                                 

Name
bacteriochlorophyllide d C-82-methyltransferase;
bchQ (gene name)
Class
Transferases;
Transferring one-carbon groups;
Methyltransferases
BRITE hierarchy
Sysname
S-adenosyl-L-methionine:8,12-diethyl-3-vinylbacteriochlorophyllide-d C-82-methyltransferase
Reaction(IUBMB)
(1) S-adenosyl-L-methionine + 8,12-diethyl-3-vinylbacteriochlorophyllide d = S-adenosyl-L-homocysteine + 12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d [RN:R11508];
(2) S-adenosyl-L-methionine + 12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d = S-adenosyl-L-homocysteine + 12-ethyl-8-isobutyl-3-vinylbacteriochlorophyllide d [RN:R11509]
Reaction(KEGG)
Substrate
S-adenosyl-L-methionine [CPD:C00019];
8,12-diethyl-3-vinylbacteriochlorophyllide d [CPD:C21427];
12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d [CPD:C21428]
Product
S-adenosyl-L-homocysteine [CPD:C00021];
12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d [CPD:C21428];
12-ethyl-8-isobutyl-3-vinylbacteriochlorophyllide d [CPD:C21429]
Comment
This enzyme, found in green sulfur bacteria (Chlorobiaceae) and green flimentous bacteria (Chloroflexaceae), is a radical S-adenosyl-L-methionine (AdoMet) enzyme and contains a [4Fe-4S] cluster. It adds one or two methyl groups at the C-82 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 influence chlorosomal absorption properties.
History
EC 2.1.1.332 created 2016
Pathway
Porphyrin and chlorophyll metabolism
Biosynthesis of secondary metabolites
Orthology
K13601  
bacteriochlorophyllide d C-8(2)-methyltransferase
Genes
CTE: 
CT1777(bchQ)
CPC: 
CLZ: 
CCH: 
CPH: 
CPB: 
CLI: 
PVI: 
PLT: 
PPH: 
PAA: 
Paes_1806
PROC: 
Ptc2401_01903
CTS: 
Ctha_1292
 » show all
Taxonomy
Reference
1  [PMID:17586634]
  Authors
Gomez Maqueo Chew A, Frigaard NU, Bryant DA.
  Title
Bacteriochlorophyllide c C-8(2) and C-12(1) methyltransferases are essential for  adaptation to low light in Chlorobaculum tepidum.
  Journal
J. Bacteriol. 189 (2007) 6176-84.
  Sequence
[cte:CT1777]
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
KEGG   REACTION: R11509Help
Entry
R11509                      Reaction                               

Name
S-adenosyl-L-methionine:12-ethyl-8-propyl-3-vinylbacteriochlorophyllide d C-8(2)-methyltransferase
Definition
12-Ethyl-8-propyl-3-vinylbacteriochlorophyllide d + S-Adenosyl-L-methionine <=> 12-Ethyl-8-isobutyl-3-vinylbacteriochlorophyllide d + S-Adenosyl-L-homocysteine
Equation
Comment
radical SAM
Reaction class
C21428_C21429
Enzyme
Pathway
Porphyrin and chlorophyll metabolism
Biosynthesis of secondary metabolites
Orthology
K13601  
bacteriochlorophyllide d C-8(2)-methyltransferase [EC:2.1.1.332]
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