>tr|A0A3S5YMX2|A0A3S5YMX2_SALER Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. arizonae serovar 18:z4,z23:- str. CVM N26626 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY