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To refine our chemical intuition about similarities and differences among CC, NP, and DC¡ä, we analyzed PCA coefficients to learn which properties are correlated (Fig. 2A), and how these properties vary in each set (Fig. 2B). Not surprisingly, PSA is correlated with Ha and Hd, and NP has high variation in this direction, consistent with other studies (19, 21). Similarly, Rot is correlated with MW, and these properties, along with cLogP, account for much of the variation in DC¡ä. Previously, we classified these compounds for binding specificity in protein-binding profiles (48). Using similarly defined specificity groups (¡°specific¡±: bound 1 protein; ¡°intermediate¡±: bound 2¨C5 proteins; ¡°promiscuous¡±: bound 6þ proteins), we asked whether compounds in different groups are concentrated or distributed in the property space (Fig. 2C). |
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huqionghhkk(½ð±Ò+15): 2011-09-29 22:55:16
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