>sp|P0AG48|RL21_ECOLI Large ribosomal subunit protein bL21 OS=Escherichia coli GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA