Canadian Medical Guide > Chemicals and Drugs > Amino Acids, Peptides, and Proteins > Proteins > Hemeproteins Terms and Definitions

Hemeproteins

Medical Definition:	Proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin. (From Lehninger, Principles of Biochemistry, 1982, p480)
Previously Indexed:	Blood Proteins (1966-1972),Heme (1966-1972),Proteins (1966-1972)

Hemeproteins Categories.

	Leghemoglobin - A hemoglobin-like oxygen-binding hemeprotein present in the nitrogen-fixing root nodules of leguminous plants. The red pigment has a molecular weight approximately 1/4 that of hemoglobin and has been suggested to act as an oxido-reduction catalyst in symbiotic nitrogen fixation.
	Metmyoglobin - Myoglobin which is in the oxidized ferric or hemin form. The oxidation causes a change in color from red to brown.

Hemeproteins Medical Definitions and Terms

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