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Siroheme
Siroheme (or sirohaem) is a heme-like prosthetic group used by some enzymes to accomplish the six-electron reduction of sulfur and nitrogen. Siroheme is synthesized from uroporphyrinogen III, a heme and vitamin B12 precursor. It plays a major role in the sulfur assimilation pathway: converting sulfite to a biologically useful sulfide, which can be incorporated into the organic compound homocysteine. ==See also==
* Ferredoxin-nitrite reductase * Hydrogensulfite reductase * Nitrite reductase (NAD(P)H)
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Siroheme」の詳細全文を読む
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