Solution NMR structures provide first structural coverage of the large protein domain family PF08369 and complementary structural coverage of dark operative protochlorophyllide oxidoreductase complexes.
Solution NMR structures provide first structural coverage of the large protein domain family PF08369 and complementary structural coverage of dark operative protochlorophyllide oxidoreductase complexes.
J Struct Funct Genomics. 2013 Aug 21;
Authors: Pulavarti SV, He Y, Feldmann EA, Eletsky A, Acton TB, Xiao R, Everett JK, Montelione GT, Kennedy MA, Szyperski T
Abstract
High-quality NMR structures of the C-terminal domain comprising residues 484-537 of the 537-residue protein Bacterial chlorophyll subunit B (BchB) from Chlorobium tepidum and residues 9-61 of 61-residue Asr4154 from Nostoc sp. (strain PCC 7120) exhibit a mixed ?/? fold comprised of three ?-helices and a small ?-sheet packed against second ?-helix. These two proteins share 29*% sequence similarity and their structures are globally quite similar. The structures of BchB(484-537) and Asr4154(9-61) are the first representative structures for the large protein family (Pfam) PF08369, a family of unknown function currently containing 610 members in bacteria and eukaryotes. Furthermore, BchB(484-537) complements the structural coverage of the dark-operating protochlorophyllide oxidoreductase.
PMID: 23963952 [PubMed - as supplied by publisher]
More...