>tr|A0A737C4T6|A0A737C4T6_SALER Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. arizonae serovar 18:z4,z32:- GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY