>sp|B7NDH0|RL21_ECOLU Large ribosomal subunit protein bL21 OS=Escherichia coli O17:K52:H18 GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA