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Table 3 Frequency of activity of ACE inhibitor features as determined by the TMACC interpretation.

From: Interpretable correlation descriptors for quantitative structure-activity relationships

  Activity
ACE inhibitor feature Negative Neutral Positive
C-terminal carboxylate carbonyl 5 0 105
C-terminal carboxylate hydroxyl 0 5 105
Central carbonyl 13 3 96
Zinc binding carboxylate - carbonyl 3 3 22
Zinc binding carboxylate - hydroxyl 0 4 24
Zinc binding sulfhydryl sulfur 0 0 33
Zinc binding phosphinate phosphorus 0 0 22
Zinc binding phosphinate carbonyl 20 0 2
Zinc binding phosphinate hydroxyl 20 0 2
P1' methyl 4 2 27
P1' lysyl nitrogen 0 0 20