>tr|W1X1L5|W1X1L5_ECOLX Large ribosomal subunit protein bL21 OS=Escherichia coli DORA_A_5_14_21 GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA