cytochrome a造句

• The iron of the heme A of cytochrome a is hexacoordinated, that is bound with 6 other atoms.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on hydrogen as donor with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donor with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on other nitrogenous compounds as donors with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on a sulfur group of donors with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on diphenols and related substances as donor with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with a cytochrome as acceptor.
• This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH2 group of donors with a cytochrome as acceptor.
• It plays a vital role in enabling the cytochrome a 3-Cu B binuclear center to accept four electrons in reducing molecular oxygen to water.
• This enzyme belongs to the family of oxidoreductases, to be specific those acting on the CH-OH group of donor with a cytochrome as acceptor.
• Cytochrome a is slightly distinct, as it occurs at the mitochondrial membrane, binds directly to oxygen, and transports protons as well as electrons, as follows:
• This effect also plays a minor role in the toxicity of cyanide, but there the major effect is by far its interference with the proper functioning of the electron transport protein cytochrome a.
• The oxygen is rapidly reduced, with two electrons coming from the Fe 2 + cytochrome a 3, which is converted to the ferryl oxo form ( Fe 4 + = O ).
• COX15 is one of the cytochrome c oxidase ( COX ) assembly factors identified in yeast, playing a key role in the biosynthetic pathway of mitochondrial heme A, the prosthetic group of cytochrome a and a3.
• The goal of the antidote was to generate a large pool of ferric iron ( Fe 3 + ) to compete for cyanide with cytochrome a 3 ( so that cyanide will bind to the antidote rather than the enzyme ).
• Two electrons are passed from two cytochrome c's, through the Cu A and cytochrome a sites to the cytochrome a 3-Cu B binuclear center, reducing the metals to the Fe 2 + form and Cu +.
• Two electrons are passed from two cytochrome c's, through the Cu A and cytochrome a sites to the cytochrome a 3-Cu B binuclear center, reducing the metals to the Fe 2 + form and Cu +.
• The sixth coordination site is then occupied by either another imidazole nitrogen or a methionine sulfur, so that these proteins are largely inert to oxygen  with the exception of cytochrome a, which bonds directly to oxygen and thus is very easily poisoned by cyanide.
• The names of cytochromes typically ( but not always ) reflect the kinds of hemes they contain : cytochrome a contains heme A, cytochrome c contains heme C, etc . This convention may have been first introduced with the publication of the structure of heme A.
• A third electron arising from another cytochrome c is passed through the first two electron carriers to the cytochrome a 3-Cu B binuclear center, and this electron and two protons convert the tyrosyl radical back to Tyr, and the hydroxide bound to Cu B 2 + to a water molecule.