methemoglobin

methemoglobin
An oxidized form of hemoglobin, containing ferric rather than ferrous iron, that cannot transport oxygen

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  • 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

  • methemoglobin — methemoglobin. См. гемиглобин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • methemoglobin — methemoglòbīn m <G methemoglobína> DEFINICIJA fiziol. oksidacijski oblik hemoglobina na koji je kisik čvrsto vezan pa je stoga neupotrebljiv za prijenos kisika krvlju ETIMOLOGIJA met + v. hemoglobin …   Hrvatski jezični portal

  • methemoglobin — [met hē′mō glō΄bin, meth eməglō΄bin; methem′ōglō΄bin, met hem′əglō΄bin] n. [ MET(A) + HEMOGLOBIN] a brownish, crystalline substance containing ferric iron, formed in the blood by the oxidation of hemoglobin, as by the action of certain drugs or… …   English World 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

  • methemoglobin — methemoglobinas statusas T sritis chemija apibrėžtis Hemoglobinas, turintis Fe(III) ir nepernešantis O₂. atitikmenys: angl. methemoglobin rus. метгемоглобин …   Chemijos terminų aiškinamasis žodynas

  • methemoglobin — methemoglobinas statusas T sritis ekologija ir aplinkotyra apibrėžtis Hemoglobino darinys, kurio molekulės geležis oksiduota ir jis negali prisijungti ir pernešti deguonies. Susidaro organizme apsinuodijus kai kuriomis medžiagomis. atitikmenys:… …   Ekologijos terminų aiškinamasis žodynas

  • Methemoglobin reductase — protein Name=cytochrome b5 reductase 3 caption=Ribbon diagram of erythrocytic methemoglobin reductase with FAD bound. From PDB|1UMK. width=220px HGNCid=2873 Symbol=CYB5R3 AltSymbols=DIA1 EntrezGene=1727 OMIM=250800 RefSeq=NM 007326 UniProt=P00387 …   Wikipedia

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

  • methemoglobin — noun Etymology: International Scientific Vocabulary Date: 1870 a soluble brown crystalline basic blood pigment that differs from hemoglobin in containing ferric iron and in being unable to combine reversibly with molecular oxygen …   New Collegiate Dictionary

  • methemoglobin — /met hee meuh gloh bin, hem euh , hee meuh gloh , hem euh /, n. Biochem. a brownish compound of oxygen and hemoglobin, formed in the blood, as by the use of certain drugs. Also, methaemoglobin. Also called ferrihemoglobin, hemiglobin. [1865 70;… …   Universalium

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