>sp|Q0TCS4|RL21_ECOL5 Large ribosomal subunit protein bL21 OS=Escherichia coli O6:K15:H31 GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA