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Figure 4.
Figure 4. Electrostatic potential mapped onto the molecular
surface of (a) human trypsin IV, (b) human trypsin I, (c) rat
anionic trypsin and (d) bovine cationic trypsin. The contouring
level of electrostatic potential is -18 kT/e (red) and 18 kT/e
(blue). The orientation of the molecules is the same as in
Figure 1(a).
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