Hemoproteins


Also found in: Dictionary, Thesaurus, Medical.
Related to Hemoproteins: heme, heme protein

Hemoproteins

 

complex proteins containing the pigmented prosthetic group—hemes. Hemoproteins are classified as chromoproteins. In addition to the respiratory pigments—hemoglobin and myoglobin—hemoproteins include widely distributed respiratory enzymes—cytochromes— and oxidative enzymes of tissues—peroxidase, which catalyzes the oxidation of organic substances by hydrogen peroxide, catalase, and leghemoglobin (legoglobin), a pigment found in the root nodules of leguminous plants.

References in periodicals archive ?
Ortiz De Montellano, "Catalytic sites of hemoprotein peroxidases," Annual Review of Pharmacology and Toxicology, vol.
Cytochromes c' are hemoproteins common in denitrifying and photosynthetic bacteria that have high affinity for NO and can be used as biosensors for NO.
Rapid oxidation of dichlorodihydrofluorescin with heme and hemoproteins: formation of the fluorescein is independent of the generation of reactive oxygen species.
Formation of nitrogen oxides and citrulline upon oxidation of Nw-hydroxy-l-arginine by hemoproteins. Biochemistry and.
P450 enzymes are a superfamily of hemoproteins, which catalyze the Phase I biotransformation of various substrates, oxidizing these compounds into forms which are easily eliminated by the body.
Instituto Mexicano del Petroleo (Mexico) and Universidad Nacional Autonoma de Mexico (Mexico) have patented a method of removing thiophenic and organosulfide compounds from a fossil fuel comprising the steps of contacting the fossil fuel with hemoproteins, which oxidize the sulfur containing compounds to sulfoxides and sulfones in a reaction system containing organic solvent or not, and followed by a distillation step in which sulfoxides and sulfones are removed from the fuel.
Method of continuous registration of [O.sub.2] binding curves of hemoproteins by means of a diffusion chamber.
The mechanism by which this inhibition takes place is thought to be related to chelation of free iron which is released from hemoproteins of meat during heat processing.
Iron could also be included in the heme of hemoproteins (the terminology "heme" was used when talking about hemoproteins) [6].
The cytochrome P450s (CYPs) are superfamily of hemoproteins, which metabolise various compounds.