Emodin vs Spironolactone
Mechanistic comparison of Emodin Purgative anthraquinone found in several plants and Spironolactone based on molecular target overlap from BindingDB and ChEMBL binding affinity data.
24
Shared Targets
29%
Jaccard Similarity
21%
IDF-Weighted Similarity
Jaccard measures raw target overlap. IDF-weighted downweights promiscuous hub targets (e.g. CYP enzymes) that bind many compounds non-specifically.
Evidence Comparison
Target Overlap
Emodin and Spironolactone share 24 molecular targets based on binding affinity data from BindingDB (Kd/IC50 ≤ 10 µM) and ChEMBL. A Jaccard index of 0.289 means 29% of the combined target set is bound by both compounds. The IDF-weighted score of 0.213 accounts for non-specific binding to metabolic enzymes.
Note: High target overlap does not imply identical mechanism or therapeutic equivalence. Binding affinity, tissue distribution, bioavailability, and downstream signaling differ significantly between compounds even when they bind the same protein.