>tr|A0A636P8Q7|A0A636P8Q7_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Guildford GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY