Known targets — ChEMBL curated mechanism
The experimentally established mechanism targets of Topotecan. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.
Predicted protein targets (top 20)
| gene | UniProt | supporting neighbours | confidence | |
|---|---|---|---|---|
| ▸ | TOP1 known ✓ | P11387 | 19/20 | 1.00 |
| ▸ | MEN1 | O00255 | 5/20 | 1.00 |
| ▸ | KMT2A | Q03164 | 5/20 | 1.00 |
| ▸ | SMN1; SMN2 | Q16637 | 5/20 | 1.00 |
| ▸ | KDM4E | B2RXH2 | 4/20 | 1.00 |
| ▸ | CASP1 | P29466 | 3/20 | 1.00 |
| ▸ | CASP7 | P55210 | 3/20 | 1.00 |
| ▸ | HBB | P68871 | 3/20 | 1.00 |
| ▸ | MAPT | P10636 | 3/20 | 1.00 |
| ▸ | USP2 | O75604 | 2/20 | 1.00 |
| ▸ | LMNA | P02545 | 2/20 | 1.00 |
| ▸ | BRCA1 | P38398 | 2/20 | 1.00 |
| ▸ | KEAP1 | Q14145 | 2/20 | 1.00 |
| ▸ | NFE2L2 | Q16236 | 2/20 | 1.00 |
| ▸ | HIF1A | Q16665 | 2/20 | 1.00 |
| ▸ | CYP3A4 | P08684 | 2/20 | 1.00 |
| ▸ | SLC22A2 | O15244 | 1/20 | 1.00 |
| ▸ | TOP2A | P11388 | 1/20 | 1.00 |
| ▸ | TOP2B | Q02880 | 1/20 | 1.00 |
| ▸ | SLC47A2 | Q86VL8 | 1/20 | 1.00 |
Click a target to see other patent compounds predicted against it — the reverse direction, in place.
Similar compounds — the chemically nearest patent molecules
Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.
| Compound | similarity | top predicted | shared targets | |
|---|---|---|---|---|
| Topotecan SCHEMBL3836 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL31517322 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL29350221 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL30712226 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL14577671 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL3927536 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL5531617 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL29726458 | 1.00 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL10278 | 0.99 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E | |
| Topotecan SCHEMBL418714 | 0.99 | TOP1 (1.00) | TOP1MEN1KMT2ASMN1; SMN2KDM4E |
Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.
Patent provenance — the patents this molecule appears in, and who filed them
Claimed or disclosed in 8 patents. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-11834458-B2 | Anti-cancer nuclear hormone receptor-targeting compounds | NUVATION BIO INC. (US) | 2023-12-05 | — | — | US | disclosed |
| US-11834458-B2 | Anti-cancer nuclear hormone receptor-targeting compounds | NUVATION BIO INC. (US) | 2023-12-05 | — | — | US | disclosed |
| WO-2022204184-A1 | ANTI-CANCER NUCLEAR HORMONE RECEPTOR-TARGETING COMPOUNDS | NUVATION BIO INC. (US) | 2022-09-29 | — | — | WO | disclosed |
| US-20220281904-A1 | A PRODRUG PLATFORM USEFUL TO DELIVER AMINES, AMIDES AND PHENOLS | Changchun Changcheng Pharmaceutical Technology Co., LTD (CN) | 2022-09-08 | — | — | US | disclosed |
| WO-2021032075-A1 | A PRODRUG PLATFORM USEFUL TO DELIVER AMINES, AMIDES AND PHENOLS | SHANGHAI CHANGCHENGYIYAOKEJI COMPANY LIMITED (CN) | 2021-02-25 | — | — | WO | disclosed |
| US-20140371258-A1 | Water-Soluble Polymer Conjugates of Topotecan | NEKTAR THERAPEUTICS (US) | 2014-12-18 | — | — | US | disclosed |
| US-20140371258-A1 | Water-Soluble Polymer Conjugates of Topotecan | NEKTAR THERAPEUTICS (US) | 2014-12-18 | — | — | US | disclosed |
| WO-2012083197-A1 | WATER-SOLUBLE POLYMER CONJUGATES OF TOPOTECAN | NEKTAR THERAPEUTICS (US) | 2012-06-21 | — | — | WO | disclosed |
Patent text — is the patent's own abstract consistent with the prediction?
For each of this compound's patents that has machine-readable text (3 of them — usually the abstract, not the full specification), we ask MedCPT which protein the text reads most about, and where the chemistry-predicted target lands among 4885 human targets. A high rank means the patent's own wording is consistent with the prediction — a weak, independent signal, not proof of activity.
| Patent | Title | Text reads most about | Predicted target · text-rank |
|---|---|---|---|
| US-20140371258-A1 | Water-Soluble Polymer Conjugates of Topotecan | TOP2A, TOP1, TOP2B | TOP1 2/4885MEN1 2796/4885KMT2A 783/4885 |
| US-11834458-B2 | Anti-cancer nuclear hormone receptor-targeting compounds | NCOA1, NCOR1, NCOA3 | TOP1 531/4885MEN1 2250/4885KMT2A 2014/4885 |
| US-20220281904-A1 | A PRODRUG PLATFORM USEFUL TO DELIVER AMINES, AMIDES AND PHENOLS | GOT1, PAM, GLS2 | TOP1 769/4885MEN1 2752/4885KMT2A 952/4885 |
“Text reads most about” is the patent abstract's nearest protein in MedCPT space (background-debiased). Only ~1.4% of patents have machine-readable text, so most compounds won't have this panel.