>sp|B7LR53|RL21_ESCF3 Large ribosomal subunit protein bL21 OS=Escherichia fergusonii GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA