>sp|B2U1Z1|RL21_SHIB3 Large ribosomal subunit protein bL21 OS=Shigella boydii serotype 18 GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA