Known targets — ChEMBL curated mechanism
The experimentally established mechanism targets of Methotrexate. 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 | |
|---|---|---|---|---|
| ▸ | DHFR known ✓ | P00374 | 4/20 | 0.98 |
| ▸ | FPGS | Q05932 | 3/20 | 0.98 |
| ▸ | KDM4E | B2RXH2 | 1/20 | 0.98 |
| ▸ | TLR4 | O00206 | 1/20 | 0.98 |
| ▸ | MEN1 | O00255 | 1/20 | 0.98 |
| ▸ | ALDH1A1 | P00352 | 1/20 | 0.98 |
| ▸ | LMNA | P02545 | 1/20 | 0.98 |
| ▸ | TP53 | P04637 | 1/20 | 0.98 |
| ▸ | TYMS | P04818 | 1/20 | 0.98 |
| ▸ | GLA | P06280 | 1/20 | 0.98 |
| ▸ | POLB | P06746 | 1/20 | 0.98 |
| ▸ | HMGB1 | P09429 | 1/20 | 0.98 |
| ▸ | MAPT | P10636 | 1/20 | 0.98 |
| ▸ | FOLR2 | P14207 | 1/20 | 0.98 |
| ▸ | FOLR1 | P15328 | 1/20 | 0.98 |
| ▸ | HPGD | P15428 | 1/20 | 0.98 |
| ▸ | ALOX15 | P16050 | 1/20 | 0.98 |
| ▸ | ALOX12 | P18054 | 1/20 | 0.98 |
| ▸ | GART | P22102 | 1/20 | 0.98 |
| ▸ | APEX1 | P27695 | 1/20 | 0.98 |
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 | |
|---|---|---|---|---|
| Methotrexate SCHEMBL406878 | 1.00 | DHFR (0.98) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL11175892 | 1.00 | DHFR (0.98) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL1000841 | 1.00 | DHFR (0.98) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL5307856 | 1.00 | DHFR (0.98) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL3712 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL171251 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL2301949 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL16013534 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL20548444 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 | |
| Methotrexate SCHEMBL3711 | 0.99 | DHFR (1.00) | DHFRFPGSKDM4ETLR4MEN1 |
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
Appears in 14936 patents — a generic fragment claimed broadly, so it's down-weighted as IP noise. Top by claim status then date:
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| US-20260116861-A1 | ISOXAZOLE HYDROXAMIC ACIDS AS HISTONE DEACETYLASE 6 INHIBITORS | THE GEORGE WASHINGTON UNIVERSITY, A CONGRESSIONALLY CHARTERED NOT-FOR-PROFIT CORPORATION (US) | 2026-04-30 | — | — | US | claimed |
| EP-4709378-A1 | COMPOUNDS FOR NOS-RELATED CANCERS AND METHODS OF USE | Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. (IL) | 2026-03-18 | — | — | EP | claimed |
| US-12522572-B2 | Isoxazole hydroxamic acids as histone deacetylase 6 inhibitors | THE GEORGE WASHINGTON UNIVERSITY, A CONGRESSIONALLY CHARTERED NOT-FOR-PROFIT CORPORATION (US) | 2026-01-13 | — | — | US | claimed |
| US-20250352551-A1 | SUBSTITUTED 4-AMINOISOINDOLINE-1,3-DIONE COMPOUNDS AND SECOND ACTIVE AGENTS FOR COMBINED USE | CELGENE CORPORATION | 2025-11-20 | — | — | US | claimed |
| US-20250242046-A1 | ALLOGENEIC HYPOIMMUNE BIOMIMETIC NANOVESICLE FOR THE TREATMENT OF CANCER | MALCOLM THOMAS (US) | 2025-07-31 | — | — | US | claimed |
| WO-2025124760-A1 | TREATMENT OF SUBPOPULATION OF PATIENTS WITH RHEUMATOID ARTHRITIS | SYNACT PHARMA APS (DK) | 2025-06-19 | — | — | WO | claimed |
| US-12325755-B2 | Macropinocytosing human anti-CD46 antibodies and targeted cancer therapeutics | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (US) | 2025-06-10 | — | — | US | claimed |
| US-20250161478-A1 | LINKER PAYLOADS AND CONJUGATES THEREOF | GLYKOS FINLAND OY (FI) | 2025-05-22 | — | — | US | claimed |
| WO-2025080769-A1 | METHODS OF TREATING CANCER | FOGHORN THERAPEUTICS INC. (US) | 2025-04-17 | — | — | WO | claimed |
| EP-4537108-A1 | ALLELIC IMBALANCE OF CHROMATIN ACCESSIBILITY IN CANCER IDENTIFIES CAUSAL RISK VARIANTS AND THEIR MECHANISMS | Dana-Farber Cancer Institute, Inc. (US) | 2025-04-16 | — | — | EP | claimed |
| US-20010049349-A1 | Antioxidant enhancement of therapy for hyperproliferative conditions | CRABTREE ACQUISITION CO, LLC | 2001-12-06 | — | — | US | claimed |
| US-20010039952-A1 | ULTRASOUND ENHANCED CHEMOTHERAPY | WALTER A. HACKER, PH. D | 2001-11-15 | — | — | US | claimed |
| US-6308714-B1 | Ultrasound enhanced chemotherapy | CORAJE, INC. | 2001-10-30 | — | — | US | claimed |
| CN-1261803-A | Antioxidant enhancement of therapy for hyperproliferative conditions | ATHEROGENICS INC (US) | 2000-08-02 | — | — | CN | claimed |
| EP-1019034-A2 | ANTIOXIDANT ENHANCEMENT OF THERAPY FOR HYPERPROLIFERATIVE CONDITIONS | Atherogenics, Inc. (US) | 2000-07-19 | — | — | EP | claimed |
| CN-1250375-A | Pharmaceutical composition containing shark cartilage extract and antitumor agent for treating tumor | AETERNA LAB INC (CA) | 2000-04-12 | — | — | CN | claimed |
| EP-0967987-A1 | COMPOSITIONS FOR TREATING TUMORS CONTAINING SHARK CARTILAGE EXTRACTS AND ANTI-NEOPLASTIC AGENTS | LES LABORATOIRES AETERNA INC. (CA) | 2000-01-05 | — | — | EP | claimed |
| WO-1999001118-A9 | ANTIOXIDANT ENHANCEMENT OF THERAPY FOR HYPERPROLIFERATIVE CONDITIONS | ATHEROGENICS INC (US) | 1999-05-20 | — | — | WO | claimed |
| WO-1999001118-A2 | ANTIOXIDANT ENHANCEMENT OF THERAPY FOR HYPERPROLIFERATIVE CONDITIONS | ATHEROGENICS, INC. (US) | 1999-01-14 | — | — | WO | claimed |
| WO-1998040088-A1 | COMPOSITIONS FOR TREATING TUMORS CONTAINING SHARK CARTILAGE EXTRACTS AND ANTI-NEOPLASTIC AGENTS | LES LABORATOIRES AETERNA INC. (CA) | 1998-09-17 | — | — | WO | claimed |