>sp|Q6N9K2|BCHB_RHOPA Light-independent protochlorophyllide reductase subunit B OS=Rhodopseudomonas palustris GN=bchB MQLTVWTYEGPPHVGAMRVATGMEKLHYVLHAPQGDTYADLLFTMIERRNKRPPVTYTTF AARDLGKDTAELFMSAARNAYARFKPQAMIVGASCTGSLIQDDPGGLAKSLGFSIPVIPI DLPAYQRKENWGASETFYQLVRAIAGPKAPAPGTKRPERAAGQRAKCNLLGPTALGFRHR DDITEITRLLGQLGIDVNVVAPMGATPADLTRLGEADFNVVLYPEVASQAASWLQRIFHQ PFTKTIPIGVSATREFVREVAGLAGVDPEPVLAAASTRLPWYSHSVDSTYLTNKRVFIFG DATHAIASARIASEELGFKVVGLGTYSREFGRDVREAAAKYGVEALITDDYLEVEAKVAE LHPELVLGTQMERHIAKRLGVPCAVISAPVHVQDFPARYAPQMGFEGANVIFDTWVHPLM MGLEEHLLAMFKDDFEFKDGALPSHLGTGHAPASAPAAAEVAVALPQSAPVLDGAASNPA PVATAPTGAVWAPEAEKELLKIPFFVRGKARRNTERFANENGVATITVETLYDAKAHFAR