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C5：蛋氨酸（Met，methionine，甲硫氨酸）

甲硫氨酸 蛋氨酸 methionine Met 甲基同型半胱氨酸 smiles CSCC C@@H C =O O N $结构式：$ - tikz \usepackage chemfig \begin document \chemfig C - 2,1 COOH - 2,0.5,,,transparent % 上边缘支撑 < 7.3,1 NH 2

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甲硫氨酸 蛋氨酸 methionine Met 甲基同型半胱氨酸

3D结构

CSCC[C@@H](C(=O)O)N

$结构式：$ -

\usepackage{chemfig}
\begin{document}
\chemfig{
C	(-[2,1]COOH
		-[2,0.5,,,transparent] % 上边缘支撑
	)
	(<[7.3,1]NH_2)
	(<:[,1]H)
	(-[4.7,1]CH_2
		-[4,1]CH_2
		-[4,1]S
		-[4,1]CH_3
	)
}
\end{document}

^2

---

-

\usepackage{chemfig}
\begin{document}
\chemfig{
C
	(-[4,1]H_3N^{+})
	(-[2,1]COO^{-})
	(-[0,1]H)
	-[6,1]\textcolor{blue}{C}(-[7.9,0.35,,,,transparent]\textcolor{blue}{H_{2}})
	-[6,1,,,,blue]\textcolor{blue}{C}(-[7.9,0.35,,,,transparent]\textcolor{blue}{H_{2}})
	-[6,1,,,,blue]\textcolor{blue}{S}
	-[6,1,,,,blue]\textcolor{blue}{C}(-[7.9,0.35,,,,transparent]\textcolor{blue}{H_{3}})
}
\end{document}

^1

-

\usepackage{chemfig}
\begin{document}
\chemfig{
C
	(-[4,1]H_3N^{+})
	(-[2,1]COO^{-})
	(-[0,1]H)
	-[6,1]CH_{2}
	-[6,1]CH_{2}
	-[6,1]S
	-[6,1]CH_{3}
}
\end{document}

-

\usepackage{chemfig}
\begin{document}
\chemfig{
C
	(<[4,1]H_2N)
	(<:[2,1]COOH
		-[2,0.5,,,transparent] % 上边缘支撑
	)
	(<[0,1]H)
	(<:[6,1]CH_2
		(-[6,1]CH_2-[6,1]S-[6,1]CH_3)
	)
}
\end{document}

^3

-

\usepackage{chemfig}
\begin{document}
\chemfig{
	(-[0.7,1]COOH
		-[2,0.5,,,transparent] % 上边缘支撑
	)
	(<[6,0.8]NH_2)
	(-[3.3,1]-[4.7,1]-[3.3,1]S-[4.7,1])
}
\end{document}

^4

-

\usepackage{chemfig}
\begin{document}
\chemfig{
	C
		(-[,0.5]H)
		(-[2,0.5]COOH)
		(-[4,0.6]NH_2)
		(-[6,0.5]CH_2
			(-[6,0.5]CH_2
				-[6,0.5]S-[6,0.5]CH_3
			)
		)
} 
\end{document}

• 形成肽链

\usepackage{chemfig}
\begin{document}

%% 蛋氨酸a
\definesubmol\meta{
N
	(-[::+60,0.3,,,,transparent]H)
	-[::-60]
		(<:[::-60]-[::60]-[::-60]S-[::60]
		)
	-[::60]
		(=[::60]O)
}
%% 蛋氨酸b
\definesubmol\metb{
N
	(-[::-60,0.3,,,transparent]H)
	-[::60]
		(<[::60]-[::60]-[::-60]S-[::60]
		)
	-[::-60]
		(=[::-60]O)
}
\chemfig{
H
	-[::+30]!\meta
	-[::-60]!\metb
	-[::+60]!\meta
	-[::-60]!\metb
	-[::+60]!OH
}
\end{document}

^5-1

• 形成肽链-带颜色

\usepackage{chemfig}
\begin{document}

%% 蛋氨酸a
\definesubmol\meta{
N
	(-[::+60,0.3,,,,transparent]H)
	-[::-60]
		(<:[::-60,,,,green]-[::60,,,,blue]-[::-60,,,,blue]\textcolor{Orange}{S}-[::60,,,,blue]
		)
	-[::60]
		(=[::60]O)
}
%% 蛋氨酸b
\definesubmol\metb{
N
	(-[::-60,0.3,,,transparent]H)
	-[::60]
		(<[::60,,,,green]-[::60,,,,blue]-[::-60,,,,blue]\textcolor{Orange}{S}-[::60,,,,blue]
		)
	-[::-60]
		(=[::-60]O)
}
\chemfig{
H
	-[::+30]!\meta
	-[::-60]!\metb
	-[::+60]!\meta
	-[::-60]!\metb
	-[::+60]!OH
}
\end{document}

^5-2