>sp|A7ZS83|RL21_ECO24 Large ribosomal subunit protein bL21 OS=Escherichia coli O139:H28 GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA