Figure 1.
Figure 1 I3C and its interaction with proteins. (a)
5-Amino-2,4,6-triidoisophthalic acid (I3C) with three I atoms
for anomalous scattering and three functional groups for
hydrogen bonding. (b) One molecule of I3C in lysozyme; anomalous
electron density at 4 (orange),
distances in Å. The equilateral triangle formed by the I
atoms is clearly visible. (c) Hydrogen bonding of the amino
group of I3C with the main-chain carbonyl O atom of Asp21 in
thaumatin (other interactions are not shown). (d) Interaction of
I3C with three lysozyme molecules. Hydrogen bonds to Arg73
(left), Lys33 (top right) and Ser24 (bottom right) are shown by
dashed lines.
The above figure is reprinted
by permission from the IUCr:
Acta Crystallogr D Biol Crystallogr
(2008,
64,
1179-1182)
copyright 2008.
(orange),
distances in Å. The equilateral triangle formed by the I
atoms is clearly visible. (c) Hydrogen bonding of the amino
group of I3C with the main-chain carbonyl O atom of Asp21 in
thaumatin (other interactions are not shown). (d) Interaction of
I3C with three lysozyme molecules. Hydrogen bonds to Arg73
(left), Lys33 (top right) and Ser24 (bottom right) are shown by
dashed lines.