>tr|A0A0H3NKM6|A0A0H3NKM6_YERE1 Small ribosomal subunit protein bS21 OS=Yersinia enterocolitica subsp. palearctica serotype O:3 GN=rpsU MPVIKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVKRHAKKL ARENARRTRLY