>tr|Q31Y01|Q31Y01_SHIBS Hydrogenase 4 Fe-S subunit OS=Shigella boydii serotype 4 GN=hyfI MSPVLTQHVSQPITLDEQTQKMKRHLLQDIRRSAYVYRVDCGGCNACEIEIFAAITPVFD AERFGIKVVSSPRHADILLFTGAVTRAMRMPALRAYESAPDHKICVSYGACGVGGGIFHD LYSVWGGSDTIVPIDVWIPGCPPTPAATIHGFAVALGLLQQKIHAVDYRDPTGVTMQPLW PQIPPSQRIAIEREARRLAGYRQGREICDRLLRHLSDDPTGNRVNTWLRDADDPRLNSIV QQLFRVLRGLHD