>tr|A0A1W2MRB3|A0A1W2MRB3_SHIFL Large ribosomal subunit protein bL21 OS=Shigella flexneri GN=rplU MYAVFQSGGKQHRVSEGQTVRLEKLDIATGETVEFAEVLMIANGEEVKIGVPFVDGGVIK AEVVAHGRGEKVKIVKFRRRKHYRKQQGHRQWFTDVKITGISA