The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.
The iron-porphyrin prosthetic group of a class of proteins called ”heme proteins.”
The iron-containing complex of the hemoglobin molecule.
Nonprotein, iron-containing substance in blood.
The colored, insoluble component of hemoglobin, containing iron.
Red-pigmented, non-protein, iron-containing part of the hemoglobin molecule of red blood cells; also called hematin.
A compound of iron that combines with a protein (globin) to form hemoglobin, the oxygen-carrying pigment that gives red blood cells their color.
An iron-containing compound (a porphyrin) that combines with the protein globin to form hemoglobin, found in the red blood cells.
An iron-containing nonprotein portion of the hemoglobin molecule wherein the iron is in the ferrous (Fe2+) state. Disorders of heme synthesis are known as the porphyrias.