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0. 多不饱和脂肪酸的降解

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科普视频

<iframe src="https://player.bilibili.com/player.html?autoplay=false&bvid=BV1KK4y1L7ip" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" width="100%" height="500"> </iframe>

以[[C18:亚油酰辅酶A]]降解为例:

1. 3次[[0. β 氧化]]生成3个[[C2:乙酰CoA(Acetyl-CoA)]]、1个C12物质: [[C12:δ3顺式-δ6顺式-烯脂酰辅酶A]] 2. 经过[[烯酰辅酶A异构酶(ECI)]]生成[[C12:δ2反式-δ6顺式-烯脂酰辅酶A]] 3. [[C12:δ2反式-δ6顺式-烯脂酰辅酶A]]经过一次[[0. β 氧化]],即从[[2. 水合:烯脂酰辅酶A水合酶(ECH)]]开始氧化最终生成

$结构式:$

-

\usepackage{chemfig}
\begin{document}
\chemfig{
-[0.5,0.6]-[7.5,0.6]
-[0.5,0.6]-[7.5,0.6]
-[1.5,0.6]=[,0.6]-[6.5,0.6]
-[0.5,0.6]-[7.5,0.6]
	(-[0.5,0.8]SCoA)
	(=[6,0.5]O)
}
\end{document}

4. 然后经过一次[[0. β 氧化]]生成[[C10:δ2反式-δ4顺式-烯脂酰辅酶A]] 5. [[C10:δ2反式-δ4顺式-烯脂酰辅酶A]]经过[[2,4-二烯酰辅酶A还原酶]]生成[[C10:δ3反式-烯脂酰辅酶A]] 6. [[C10:δ3反式-烯脂酰辅酶A]]经过[[烯酰辅酶A异构酶(ECI)]]生成[[C10:δ2反式-烯脂酰辅酶A]] 7. [[C10:δ2反式-烯脂酰辅酶A]]经过4轮[[0. β 氧化]]彻底分解,生成5个[[C2:乙酰CoA(Acetyl-CoA)]]