Start with allergic disease, then reuse UniProt P35367 as the stable protein anchor across project notes and exports.
CHEMBL231 Target Snapshot
Histamine H1 receptor · SINGLE PROTEIN · Homo sapiens
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As of 2026-09-13Histamine H1 receptor shows approved-linked disease relevance led by allergic disease. 5 more disease programs remain visible in the same review block. 24 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt P35367. Start with allergic disease, then reuse UniProt P35367 as the stable protein anchor across project notes and exports.
Histamine H1 receptor shows approved-linked disease relevance led by allergic disease. 5 more disease programs remain visible in the same review block. 24 linked drugs remain visible in the same block.
Start review with allergic disease because it currently carries approved-linked support. Linked drugs include ACRIVASTINE, ASTEMIZOLE, BILASTINE, BROMPHENIRAMINE MALEATE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.
Disease source · ChEMBL drug mechanism + indication proxyHistamine H1 receptor
Review this target as Histamine H1 receptor, mapped to UniProt P35367. Sequence length is 487 aa.
Protein source · UniProt accession via ChEMBL component mappingCross-source identity
Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.
This review treats Histamine H1 receptor as ChEMBL target CHEMBL231, mapped to UniProt P35367. Disease framing currently uses the Open Targets-ready proxy contract.
Reuse the same identifiers in notes, watch rules, exports, and review packs so provenance stays stable across surfaces.
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Start here when your first question is whether Histamine H1 receptor is the right protein anchor across sources, using UniProt P35367 as the stable mapping.
Jump to Protein ContextUse this block first when you need to confirm why allergic disease is currently framed as approved-linked support. It currently carries 24 linked drugs in the same disease frame.
Jump to Disease ContextOpen the one-page evidence card when you want the rationale, activity base, and attribution together.
Open Review-ready CardBasic Information
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| Preferred Name | Histamine H1 receptor |
| Target Type | SINGLE PROTEIN |
| Organism | Homo sapiens |
| UniProt | P35367 |
Next Actions
UniProt Target Context
Reviewable protein naming and mapping context for this target snapshot.
| Protein Label | Histamine H1 receptor |
| UniProt Accession | P35367 |
| Component Type | Protein |
| Sequence Length | 487 aa |
Histamine H1 receptor
How to read this target
Review this target as Histamine H1 receptor, mapped to UniProt P35367. Sequence length is 487 aa.
Disease Relevance & Evidence Level
Open Targets-ready disease context using the current target-indication evidence contract.
Histamine H1 receptor shows approved-linked disease relevance led by allergic disease. 5 more disease programs remain visible in the same review block.
How to read disease relevance
Start review with allergic disease because it currently carries approved-linked support. Linked drugs include ACRIVASTINE, ASTEMIZOLE, BILASTINE, BROMPHENIRAMINE MALEATE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.
Clinical Phase Distribution
Activity Type Distribution
Top Inhibitors (by pChEMBL)
| ChEMBL ID | pChEMBL | Type | Value (nM) | Phase |
|---|---|---|---|---|
| CHEMBL511 | 10.85 | IC50 | 0.014 | Approved |
| CHEMBL2146802 | 10.4 | Kd | 0.03981 | Preclinical |
| CHEMBL1626 | 10.31 | Ki | 0.049 | Approved |
| CHEMBL1628227 | 10.18 | Ki | 0.066 | Approved |
| CHEMBL715 | 10.06 | Kd | 0.087 | Approved |
| CHEMBL2146806 | 10.0 | Kd | 0.1 | Preclinical |
| CHEMBL1767136 | 10.0 | Kd | 0.1 | Preclinical |
| CHEMBL5284242 | 10.0 | Kd | 0.1 | Preclinical |
| CHEMBL1767137 | 10.0 | Ki | 0.1 | Preclinical |
| CHEMBL5275284 | 9.88 | Kd | 0.1318 | Preclinical |
pChEMBL Value Distribution
Approved Drugs
Assay Landscape
Binding — 702 assays, 1,456 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| single protein format | 505 | 589 | 6.8 |
| cell-based format | 178 | 637 | 7.1 |
| cell membrane format | 10 | 146 | 6.9 |
| assay format | 6 | 82 | 5.7 |
| tissue-based format | 3 | 2 | 8.2 |
Functional — 113 assays, 349 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 66 | 208 | 7.7 |
| assay format | 38 | 128 | 7.1 |
| tissue-based format | 8 | 0 | — |
| organism-based format | 1 | 13 | 5.8 |
ADME — 17 assays, 42 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| single protein format | 11 | 41 | 6.5 |
| cell-based format | 6 | 1 | 7.0 |