>tr|G5S168|G5S168_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Urbana str. R8-2977 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY