Known targets — ChEMBL curated mechanism
ABL1ACEACHEACVR1ADRA1AADRA1BADRA1DADRA2AADRA2BADRA2CADRB1ADRB2ADRB3AGTR1ALKAVPR1AAVPR2BCHEBCRCA2CACNA1ACACNA1BCACNA1CCACNA1DCACNA1ECACNA1FCACNA1GCACNA1HCACNA1ICACNA1SCACNA2D1CACNA2D2CACNA2D3CACNA2D4CACNB1CACNB2CACNB3CACNB4CACNG1CACNG2CACNG3CACNG4CACNG5CACNG6CACNG7CACNG8CALCRLCASRCCR5CDK4CDK6CFBCHRM1CHRM2CHRM3CHRM4CHRM5CHRNA1CHRNA3CHRNA7CHRNB1CHRNB4CHRNDCHRNECHRNGCOXFA4COXFA4L2CRBNCSF1RCUL4ACYP19A1DDB1DPP4DRD1DRD2DRD3DRD4EDNRAEGFREML4ERBB2ERBB4ESR1ESR2FGFR1FGFR3FLT1FLT3FLT4GAAGABRA1GABRA2GABRA3GABRA4GABRA5GABRA6GABRB1GABRB2GABRB3GABRDGABREGABRG1GABRG2GABRG3GABRPGABRQGHSRGLAGNRHRGPD2GRIN1GRIN2AGRIN2BGRIN2CGRIN2DGRIN3AGRIN3BGSTP1HCN4HCRTR1HCRTR2HDAC1HDAC10HDAC11HDAC2HDAC3HDAC4HDAC5HDAC6HDAC7HDAC8HDAC9HRH1HRH2HRH3HSD11B1HSP90AA1HSP90AB1HTR1AHTR1BHTR1DHTR1EHTR1FHTR2AHTR2BHTR2CHTR3AHTR3BHTR3CHTR3DHTR3EHTR4HTR5AHTR6HTR7IMPDH1IMPDH2ITGA2BITGB3ITKJAK1JAK2KCNA1KCNA10KCNA2KCNA3KCNA4KCNA5KCNA6KCNA7KCNB1KCNB2KCNC1KCNC2KCNC3KCNC4KCND1KCND2KCND3KCNF1KCNG1KCNG2KCNG3KCNG4KCNH1KCNH2KCNH3KCNH4KCNH5KCNH6KCNH7KCNH8KCNJ2KCNJ3KCNJ5KCNK3KCNK9KCNQ1KCNQ2KCNQ3KCNQ4KCNQ5KCNS1KCNS2KCNS3KCNV1KCNV2KDRKITKLKB1LCKMMAOAMAOBMAPK14METMMP1MMP13MMP7MMP8MT-ND1MT-ND2MT-ND3MT-ND4MT-ND4LMT-ND5MT-ND6NDUFA1NDUFA10NDUFA11NDUFA12NDUFA13NDUFA2NDUFA3NDUFA5NDUFA6NDUFA7NDUFA8NDUFA9NDUFAB1NDUFAF1NDUFAF2NDUFAF3NDUFAF4NDUFB1NDUFB10NDUFB11NDUFB2NDUFB3NDUFB4NDUFB5NDUFB6NDUFB7NDUFB8NDUFB9NDUFC1NDUFC2NDUFS1NDUFS2NDUFS3NDUFS4NDUFS5NDUFS6NDUFS7NDUFS8NDUFV1NDUFV2NDUFV3NR3C1NS5ANTRK1NTRK2NTRK3ODC1OPRD1OPRK1OPRM1P2RY12PAHPARP1PDE3APDE3BPDE4APDE4BPDE4CPDE4DPDE5APDE7APDE7BPDE8APDE8BPDGFRAPDGFRBPIK3CAPIK3CDPNPPOLA1POLA2POLD1POLD2POLD3POLD4POLEPOLE2POLE3PPARGPRIM1PRIM2PRKCAPRKCBPRKCDPRKCEPRKCGPRKCHPRKCIPRKCQPRKCZPRKD1PRKD3PTGS1PTGS2RBX1RENRETROCK1ROCK2RPE65RRM1RRM2RRM2BS1PR1S1PR2S1PR3S1PR4S1PR5SCN10ASCN11ASCN1ASCN2ASCN3ASCN4ASCN5ASCN7ASCN8ASCN9ASCNN1ASCNN1BSCNN1GSIGMAR1SLC18A2SLC6A1SLC6A2SLC6A3SLC6A4SLC9A3SRCTACR1TOP1TOP2ATOP2BTTRTYMPdacAdacBdacCembAfolAftsIgyrAgyrBmrcAmrcBmrdAparCparEpolrplArplBrplCrplDrplErplFrplIrplJrplKrplLrplMrplNrplOrplPrplQrplRrplSrplTrplUrplVrplWrplXrplYrpmArpmBrpmCrpmDrpmErpmE2rpmFrpmGrpmG1rpmG2rpmG3rpmHrpmIrpmJrpsArpsBrpsCrpsDrpsErpsFrpsGrpsHrpsIrpsJrpsKrpsLrpsMrpsNrpsOrpsPrpsQrpsRrpsSrpsTrpsUykgMykgO
The experimentally established mechanism targets of Hydrochloric Acid. 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 | |
|---|---|---|---|---|
| ▸ | MAOB known ✓ | P27338 | 1/20 | 0.35 |
| ▸ | HDAC4 known ✓ | P56524 | 1/20 | 0.31 |
| ▸ | HDAC1 known ✓ | Q13547 | 1/20 | 0.31 |
| ▸ | HDAC7 known ✓ | Q8WUI4 | 1/20 | 0.31 |
| ▸ | HDAC8 known ✓ | Q9BY41 | 1/20 | 0.31 |
| ▸ | HDAC6 known ✓ | Q9UBN7 | 1/20 | 0.31 |
| ▸ | HDAC9 known ✓ | Q9UKV0 | 1/20 | 0.31 |
| ▸ | HDAC5 known ✓ | Q9UQL6 | 1/20 | 0.31 |
| ▸ | BAZ2B | Q9UIF8 | 9/20 | 0.35 |
| ▸ | BAZ2A | Q9UIF9 | 9/20 | 0.35 |
| ▸ | BRD4 | O60885 | 2/20 | 0.33 |
| ▸ | BRD9 | Q9H8M2 | 2/20 | 0.33 |
| ▸ | BRD2 | P25440 | 1/20 | 0.33 |
| ▸ | BRD3 | Q15059 | 1/20 | 0.33 |
| ▸ | SMN1; SMN2 | Q16637 | 2/20 | 0.33 |
| ▸ | NPC1 | O15118 | 2/20 | 0.33 |
| ▸ | RAB9A | P51151 | 2/20 | 0.33 |
| ▸ | PKM | P14618 | 1/20 | 0.33 |
| ▸ | NFKB1 | P19838 | 1/20 | 0.33 |
| ▸ | NFKB2 | Q00653 | 1/20 | 0.33 |
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 | |
|---|---|---|---|---|
| SCHEMBL3827167 | 0.98 | — | — | |
| Hydrochloric Acid SCHEMBL28339228 | 0.80 | LMNA (0.43) | MAOBSMN1; SMN2NPC1RAB9APKM | |
| Hydrochloric Acid SCHEMBL8306208 | 0.79 | MAOB (0.39) | MAOBLMNAMAP3K14TSHR | |
| SCHEMBL782203 | 0.77 | — | — | |
| SCHEMBL1269750 | 0.77 | — | — | |
| SCHEMBL8308338 | 0.77 | MAOB (0.40) | MAOBLMNAMAP3K14TSHR | |
| SCHEMBL1962839 | 0.75 | KDM4E (0.42) | SMN1; SMN2NPC1RAB9APKMNFKB1 | |
| SCHEMBL8541004 | 0.75 | MAPT (0.37) | MAOBSMN1; SMN2NPC1RAB9ALMNA | |
| SCHEMBL8540939 | 0.75 | ALDH1A1 (0.38) | SMN1; SMN2NPC1RAB9AL3MBTL1 | |
| SCHEMBL80996 | 0.73 | — | — |
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 9 patents. claimed = in the patent's claims; disclosed = body only.
| Patent | Title | Assignee | Published | Priority | Filing | Country | Status |
|---|---|---|---|---|---|---|---|
| EP-1581535-B3 | PYRROLOPYRIDAZINE DERIVATIVES | ASTELLAS PHARMA INC (JP) | 2009-09-02 | — | — | EP | disclosed |
| EP-1581535-B9 | PYRROLOPYRIDAZINE DERIVATIVES | ASTELLAS PHARMA INC (JP) | 2008-03-19 | — | — | EP | disclosed |
| US-7317009-B2 | Pyrrolopyridazine derivatives | ASTELLAS PHARMA INC. (JP) | 2008-01-08 | — | — | US | disclosed |
| EP-1581535-B1 | PYRROLOPYRIDAZINE DERIVATIVES | ASTELLAS PHARMA INC (JP) | 2007-10-24 | — | — | EP | disclosed |
| US-7153854-B2 | Pyrrolopyridazine derivatives | ASTELLAS PHARMA INC. (JP) | 2006-12-26 | — | — | US | disclosed |
| US-20060270678-A1 | Pyrrolopyridazine derivatives | ASTELLAS PHARMA INC. (JP) | 2006-11-30 | — | — | US | disclosed |
| EP-1581535-A1 | PYRROLOPYRIDAZINE DERIVATIVES | Astellas Pharma Inc. (JP) | 2005-10-05 | — | — | EP | disclosed |
| US-20050075342-A1 | Pyrrolopyridazine derivatives | FUJISAWA PHARMACEUTICAL CO., LTD. (JP) | 2005-04-07 | — | — | US | disclosed |
| WO-2004063197-A1 | PYRROLOPYRIDAZINE DERIVATIVES | FUJISAWA PHARMACEUTICAL CO., LTD. (JP) | 2004-07-29 | — | — | 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 (2 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-20050075342-A1 | Pyrrolopyridazine derivatives | PDE4A, PDE5A, PDE12 | MAOB 962/4885HDAC4 446/4885HDAC1 387/4885 |
| US-20060270678-A1 | Pyrrolopyridazine derivatives | PDE4A, PDE5A, PDE12 | MAOB 962/4885HDAC4 446/4885HDAC1 387/4885 |
“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.