>tr|A0A2T9QB91|A0A2T9QB91_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Cerro GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY