>sp|B7LHP9|RL21_ECO55 Large ribosomal subunit protein bL21 OS=Escherichia coli GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA