>tr|A0A657I3E5|A0A657I3E5_SALET Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Crewe GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY