>tr|A0A5Y7AJK3|A0A5Y7AJK3_SALIN Small ribosomal subunit protein bS21 OS=Salmonella enterica subsp. enterica serovar Infantis str. CFSAN000522 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY