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Figure 2.
Figure 2. (a). Stereo view of the F,-Fc electron density omit map. (Bhat & Cohen, 1984; Rini et nl., 1992) for the
phosphate binding loop of GAR Tfase in molecule 1. The map is contoured at 2.5 u. The bckbone of residues Am10 to
Asnl3 and the ide-chain amide of Asnl3 are in hydrogen bonding distance to the phosphate ion. (b) Stereo' view of the
Fo-Fc electron density omit map around the putative active ite esidue Asp144 in molecule 1. The omit map is
contoured at 2.5 rs. The side-chain of Asp144 is hydrogen bonded to the conserved residues His108 and HisI37.
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