Ethisterone vs Nandrolone
Mechanistic comparison of Ethisterone 17 alpha-Hydroxypregn-4-en-20-yn-3-one. and Nandrolone C18 steroid with androgenic and anabolic properties. It is generally prepared from alkyl ethers of ESTRADIOL to resemble TESTOSTERONE but less based on molecular target overlap from BindingDB and ChEMBL binding affinity data.
10
Shared Targets
50%
Jaccard Similarity
46%
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
Ethisterone 17 alpha-Hydroxypregn-4-en-20-yn-3-one.
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Evidence Score
119
PubMed Studies
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Nandrolone C18 steroid with androgenic and anabolic properties. It is generally prepared from alkyl ethers of ESTRADIOL to resemble TESTOSTERONE but less
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Evidence Score
300
PubMed Studies
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Target Overlap
Ethisterone and Nandrolone share 10 molecular targets based on binding affinity data from BindingDB (Kd/IC50 ≤ 10 µM) and ChEMBL. A Jaccard index of 0.500 means 50% of the combined target set is bound by both compounds. The IDF-weighted score of 0.457 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.