. . . . . . . . "Iron (heme axial ligand)" . "19"^^ . . "19"^^ . . "A metal ion-binding site occurs in NX_P99999-1 at amino acids 19 - 19." . . . . . "neXtProt gold" . . . . . . . . . "2014-09-19T00:00:00.0Z"^^ . . . "neXtProt database" . "CALIPHO project" . . . . . "2" . . .