Methemoglobin reductase

Methemoglobin reductase

Name=cytochrome b5 reductase 3
caption=Ribbon diagram of erythrocytic methemoglobin reductase with FAD bound. From PDB|1UMK.


Methemoglobin reductase (also known as cytochrome-"b"5 reductase) is a NADH-dependent enzyme that converts methemoglobin to hemoglobin.

ee also

* Methemoglobinemia
* Reductase

External links


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Look at other dictionaries:

  • methemoglobin reductase (NADPH) — met·he·mo·glo·bin re·duc·tase (NADPH) (met he″mo gloґbin re dukґtās) NADPH methemoglobin reductase …   Medical dictionary

  • methemoglobin reductase (NADH) — met·he·mo·glo·bin re·duc·tase (NADH) (met he″mə gloґbin re dukґtās) cytochrome b5 reductase …   Medical dictionary

  • NADPH methemoglobin reductase — NADPH met·he·mo·glo·bin re·duc·tase (met heґmo glo″bin re dukґtās) an enzyme of the erythrocytes that catalyzes the reduction of methemoglobin to hemoglobin via oxidation of NADH. The physiological significance of the enzyme is… …   Medical dictionary

  • Methemoglobin — (British English: methaemoglobin) (pronounced met hemoglobin ) is a form of the oxygen carrying metalloprotein hemoglobin, in which the iron in the heme group is in the Fe3+ (ferric) state, not the Fe2+ (ferrous) of normal hemoglobin.… …   Wikipedia

  • NADH methemoglobin reductase — NADH met·he·mo·glo·bin re·duc·tase (met heґmo glo bin re dukґtās) cytochrome b5 reductase …   Medical dictionary

  • Methemoglobin — A particular type of hemoglobin that is altered so that it is useless for carrying oxygen and delivering it to tissues throughout the human body. Since hemoglobin is the key carrier of oxygen in the blood, its wholesale replacement by… …   Medical dictionary

  • Reductase — A reductase is an enzyme which lowers the activation energy for a reduction reaction. [eMedicineDictionary|Reductase] [Dorlands|r 06|12697833] Examples* 5 alpha reductase * Dihydrofolate reductase * HMG CoA reductase * Methemoglobin reductase *… …   Wikipedia

  • Cytochrome b5 reductase — Ribbon diagram of erythrocytic methemoglobin reductase with FAD bound. From PDB 1UMK …   Wikipedia

  • Cytochrome P450 reductase — P450 (cytochrome) oxidoreductase PDB rendering based on 1amo …   Wikipedia

  • cytochrome-b5 reductase — cy·to·chrome b5 re·duc·tase (siґto krōm re dukґtas) [EC] an enzyme of the endoplasmic reticulum and erythrocytes that catalyzes several series of redox reactions transferring electrons from NADH to an acceptor via the intermediate… …   Medical dictionary

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