>tr|A0A5X7K751|A0A5X7K751_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Strasbourg GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY