Fig. 7
From: Comprehensive analysis of the Co-structures of dipeptidyl peptidase IV and its inhibitor
Correlation between X-ray diffraction resolution and the number of water O atoms registered. Ninety-two units (blue circles) have both of the two specific water O atoms. Sixteen units (red triangles) have only the first specific water O atom (the first red sphere in Fig. 6), and 16 units (yellow circles) have only the second specific water O atom (the second red sphere in Fig. 6). Nineteen units (grey circles) have neither of the two water O atoms, and 2OQI_B, 2OQV_A, 3F8S_A and 3F8S_B (grey circles) have no registered water O atoms. The unit that contains the most water O atoms in the above 19 units (grey circles) is PDB ID 3O95_B (129 water O atoms, dashed line)