>tr|A0A1S0ZBE2|A0A1S0ZBE2_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Saintpaul GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY