>sp|B3Q7C5|BCHB_RHOPT Light-independent protochlorophyllide reductase subunit B OS=Rhodopseudomonas palustris GN=bchB MQLTVWTYEGPPHVGAMRVATGMEKLHYVLHAPQGDTYADLLFTMIERRNKRPPVTYTTF AARDLGKDTAELFMSAARNAYARFKPQAMIVGASCTGSLIQDDPGGLAKSLGFSIPVIPI DLPAYQRKENWGASETFYQLVRAIAGPKAPAPGTKRPERAAGQRAKCNLLGPTALGFRHR DDITEITRLLGQLGIDVNVVAPMGATPADLTRLGEADFNVVLYPEVASQAASWLQRIFHQ PFTKTIPIGVSATREFVREVAGLAGVDPEPVLAAASTRLPWYSHSVDSTYLTNKRVFIFG DATHAIASARIASEELGFKVVGLGTYSREFGRDVREAAAKYGVEALITDDYLEVEAKVAE LHPELVLGTQMERHIAKRLGVPCAVISAPVHVQDFPARYAPQMGFEGANVIFDTWVHPLM MGLEEHLLAMFKDDFEFKDGALPSHLGTGHAPASAPAAAEVAVALPQSAPVLDGAASNPA PVATAPTGAVWAPEAEKELLKIPFFVRGKARRNTERFANENGVATITVETLYDAKAHFAR