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Figure 1.
Fig. 1. Chemical formulae of the FX-2212a inhibitor
(2S)-(3'-amidino-3-biphenylyl)-5-(4-pyridylamino)pentanoic acid
and the DX9065a
(2S)-{4-[1-acetimidoyl-(3S)-pyrrolidinyl]oxyphenyl}-3-(7-amidino-2-naphthyl)propionic
acid. Schematic drawing of the interactions between two
inhibitors, DX9065a and FX-2212a, and factor Xa. Hydrogen bonds
are shown as thin dashed lines, and hydrophobic interactions are
shown as thick dashed lines. In the case of Q192, the aliphatic
chain portion of Q192 makes the hydrophobic interaction. The
symbol "  " indicates
that the two interacting aromatic groups are not stacked but are
perpendicular to each other.
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