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Stick stereo figure of the active site of V143I HCA II CO2/bicarbonate complex. Shown are the calculated omit Fo-Fc electron density map, contoured at 3σ (green), when the A) CO2 and B) bicarbonate were not incorporated into the respective models. The residual electron density in either case indicates presence of both substrate and product. Amino acids are as labeled. This figure was generated with PyMol. (32).
