Use UniProt Q16581 as the stable identity anchor, then attach disease evidence before program review.
CHEMBL4761 Target Snapshot
C3a anaphylatoxin chemotactic receptor · SINGLE PROTEIN · Homo sapiens
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As of 2026-09-14Protein identity stays anchored to UniProt Q16581. Use UniProt Q16581 as the stable identity anchor, then attach disease evidence before program review.
C3a anaphylatoxin chemotactic receptor
Review this target as C3a anaphylatoxin chemotactic receptor, mapped to UniProt Q16581. Sequence length is 482 aa.
Protein source · UniProt accession via ChEMBL component mappingCross-source identity
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This review treats C3a anaphylatoxin chemotactic receptor as ChEMBL target CHEMBL4761, mapped to UniProt Q16581. Disease framing currently uses the Open Targets-ready proxy contract.
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| Preferred Name | C3a anaphylatoxin chemotactic receptor |
| Target Type | SINGLE PROTEIN |
| Organism | Homo sapiens |
| UniProt | Q16581 |
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UniProt Target Context
Reviewable protein naming and mapping context for this target snapshot.
| Protein Label | C3a anaphylatoxin chemotactic receptor |
| UniProt Accession | Q16581 |
| Component Type | Protein |
| Sequence Length | 482 aa |
C3a anaphylatoxin chemotactic receptor
How to read this target
Review this target as C3a anaphylatoxin chemotactic receptor, mapped to UniProt Q16581. Sequence length is 482 aa.
Clinical Phase Distribution
Activity Type Distribution
Top Inhibitors (by pChEMBL)
| ChEMBL ID | pChEMBL | Type | Value (nM) | Phase |
|---|---|---|---|---|
| CHEMBL1170042 | 9.74 | IC50 | 0.18 | Preclinical |
| CHEMBL3342676 | 9.1 | IC50 | 0.8 | Preclinical |
| CHEMBL2064013 | 8.73 | IC50 | 1.862 | Preclinical |
| CHEMBL1170024 | 8.7 | IC50 | 1.995 | Preclinical |
| CHEMBL4470864 | 8.7 | IC50 | 1.995 | Preclinical |
| CHEMBL4445758 | 8.52 | IC50 | 3.0 | Preclinical |
| CHEMBL3342678 | 8.4 | IC50 | 4.0 | Preclinical |
| CHEMBL4559976 | 8.4 | IC50 | 3.981 | Preclinical |
| CHEMBL4576800 | 8.4 | IC50 | 3.981 | Preclinical |
| CHEMBL2064017 | 8.34 | IC50 | 4.571 | Preclinical |
pChEMBL Value Distribution
Assay Landscape
Functional — 45 assays, 145 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 38 | 138 | 6.3 |
| assay format | 7 | 7 | 6.5 |
Binding — 28 assays, 133 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 12 | 85 | 6.5 |
| single protein format | 10 | 48 | 6.7 |
| assay format | 6 | 0 | — |
ADME — 2 assays, 4 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 2 | 4 | 6.8 |