GTP：三磷酸鸟苷

称谓

guanosine triphosphate

3D结构

C1=NC2=C(N1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N=C(NC2=O)N

$结构式：$

-

\usepackage{chemfig}
\begin{document}
\chemfig[atom sep=2em,cram width=2pt]{
	% 焦磷酸（Pantothenate）
	HO-P
		(=[2,]O)
		(-[6,]OH)
	-O-P
		(=[2,]O)
		(-[6,]OH)
	-O-P
		(=[2,]O)
		(-[6,]OH)
	-O-CH_2-[6,]
% 鸟苷
    (-[6,]H)
	(-[0.75,1.2]O)
	<[6.75,]
	(-[6,1,,2]HO)
	(-[2,0.8]H)
	-[,,,, line width=2pt]
	(-[6,]OH)(-[2,0.8]H)>[1.25,](-[3.25,])
	(-[6,]H)
	(-[2,]N
		*5(-(
			*6(-N=(-[7.6,]NH_2)-[,,,1]NH-(=[2.4,,,1]O
				-[2,0.5,,,,transparent] %上边界支撑
			)-=)
		)--N=-)
	)
}
\end{document}

^1

• 维基百科：

\usepackage{chemfig}
\begin{document}
\chemfig{
	\fbox{P}-[,0.8]\fbox{P}-[,0.8]\fbox{P}-[7,0.7]-[6,0.4]
	(-[0.5,0.65]O-[7.5,0.65])
	<[7,0.5](-[5.5,0.5]O-[4,0.3]H)
	-[,0.5,,, line width=2pt]
	(-[6.5,0.5]OH)>[1,0.5]
	-[2,0.5]N
	-[0.25,0.5]
		(-[7.5,0.5]N=[0.5,0.5](-[7.3,0.5]NH_2)-[2,0.5]N(-[0,0.3]H)-[3.5,0.5](=[2,0.5]O
			-[2,0.5,,,,transparent] %上边界支撑
		)-[4.5,0.5]
		(-[3.5,0.5]N=[5,0.6]-[7,0.3])
		=[6,0.5])
} 

\end{document}

^2

• B站

\usepackage{chemfig}
\begin{document}
\chemfig{
	\fbox{P}-[,0.8]\fbox{P}-[,0.8]\fbox{P}-[7,0.7]-[6,0.4]
	(-[0.5,0.65]O-[7.5,0.65])
	<[7,0.5](-[5.5,0.5]O-[4,0.3]H)
	-[,0.5,,, line width=2pt]
	(-[6.5,0.5]OH)>[1,0.5]
	-[2,0.5]N
	-[0.25,0.5]
		(-[7.5,0.5]N(-[6,0.3]H)-[0.5,0.5](-[7.3,0.5]NH_2)-[2,0.5]N(-[0,0.3]H)-[3.5,0.5](=[2,0.5]O
			-[2,0.5,,,,transparent] %上边界支撑
		)-[4.5,0.5]
		(-[3.5,0.5]N=[5,0.6]-[7,0.3])
		=[6,0.5])
} 

\end{document}