>tr|A0A739C6R9|A0A739C6R9_SALER Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. arizonae serovar 48:z4,z24:- GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY