Structural highlights
Function
BCHU_CHLTE Involved in the biosynthesis of the major light-harvesting pigment bacteriochlorophyll c (BChlc), which confers a significant competitive advantage to green sulfur bacteria living at limiting red and near-infrared light intensities (PubMed:15090495). Catalyzes the methylation at the C-20 position of the cyclic tetrapyrrole chlorin of bacteriochlorophyll d (BChld) to produce bacteriochlorophyll c (BChlc) using S-adenosylmethionine (SAM) as a methyl source (PubMed:15090495, PubMed:16797589).[1] [2]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
References
- ↑ Maresca JA, Gomez Maqueo Chew A, Ponsatí MR, Frigaard NU, Ormerod JG, Bryant DA. The bchU gene of Chlorobium tepidum encodes the c-20 methyltransferase in bacteriochlorophyll c biosynthesis. J Bacteriol. 2004 May;186(9):2558-66. PMID:15090495 doi:10.1128/JB.186.9.2558-2566.2004
- ↑ Wada K, Yamaguchi H, Harada J, Niimi K, Osumi S, Saga Y, Oh-Oka H, Tamiaki H, Fukuyama K. Crystal structures of BchU, a methyltransferase involved in bacteriochlorophyll c biosynthesis, and its complex with S-adenosylhomocysteine: implications for reaction mechanism. J Mol Biol. 2006 Jul 21;360(4):839-49. Epub 2006 Jun 8. PMID:16797589 doi:10.1016/j.jmb.2006.05.057