ジスルフィド結合

ジスルフィド結合

by 孝昌 野中 -
Number of replies: 0

\tdplotsetmaincoords{120}{15}\begin{tikzpicture}[scale=1,tdplot_main_coords,scale=0.7,,rotate=70,declare function = {opc=0.9;PDB=3DH5; sg=P3221;a=64.129; b=64.129; c=63.803; alpha=90; beta=90; gamma=120;x0=10.531; y0=15.975; z0=12.2455;vdw=2; lw=3;}]\coordinate (AN) at (10.143-x0, 13.311-y0, 14.464-z0);\coordinate (ACA) at (10.844-x0, 14.520-y0, 14.906-z0);\coordinate (AC) at (10.910-x0, 14.484-y0, 16.430-z0);\coordinate (AO) at (9.881-x0, 14.379-y0, 17.086-z0);\coordinate (ACB) at (10.117-x0, 15.802-y0, 14.493-z0);\coordinate (ASG) at (9.657-x0, 15.922-y0, 12.737-z0);\coordinate (AH1) at (11.831-x0, 14.532-y0, 14.443-z0);\coordinate (AH2) at (10.824-x0, 16.612-y0, 14.669-z0);\coordinate (AH3) at (9.204-x0, 15.875-y0, 15.084-z0);\coordinate (AH5) at (9.145-x0, 13.320-y0, 14.307-z0);\coordinate (BN) at (10.901-x0, 18.110-y0, 9.443-z0);\coordinate (BCA) at (10.841-x0, 18.579-y0, 10.830-z0);\coordinate (BC) at (11.306-x0, 20.043-y0, 10.740-z0);\coordinate (BO) at (12.038-x0, 20.420-y0, 9.802-z0);\coordinate (BCB) at (11.838-x0, 17.794-y0, 11.671-z0);\coordinate (BSG) at (11.405-x0, 16.028-y0, 11.754-z0);\coordinate (BH1) at (11.610-x0, 17.449-y0, 9.160-z0);\coordinate (BH2) at (9.854-x0, 18.465-y0, 11.278-z0);\coordinate (BH3) at (11.819-x0, 18.196-y0, 12.684-z0);\coordinate (BH4) at (12.830-x0, 17.895-y0, 11.230-z0);\foreach \labelx /\labely in {ACB/AH2, ACB/AH3, BCB/BH3, BCB/BH4}\draw[line width = lw, Pink1] (\labelx) -- (\labely);\foreach \labelx /\labely /\labelz in {ACA/ACB/ASG, BCA/BCB/BSG}\draw[line width = lw, gray] (\labelx) -- (\labely) -- (\labelz);\draw[line width = lw, Yellow3] (ASG) -- (BSG);\foreach \label in {ACA, ACB, BCA, BCB}\shade[ball color = black, opacity=opc] (\label) circle (vdw*1.70 mm);\foreach \label in {ASG, BSG}\shade[ball color = Yellow1, opacity=opc] (\label) circle (vdw*1.80 mm);\foreach \label in {AH2, AH3, BH3, BH4}\shade[ball color = white, opacity=opc] (\label) circle (vdw*1.20 mm);\foreach \label in {ACA, BCA}\node[white] at (\label) {\scriptsize $\rm C_\alpha$};\end{tikzpicture} ジスルフィド結合
システインの側鎖のイオウ原子どうしの共有結合をジスルフィド結合という。スルファニル基(チオール基)の酸化で生じる。