Use UniProt O75144 as the stable identity anchor, then attach disease evidence before program review.
CHEMBL5482971 Target Snapshot
ICOS-ICOSL · PROTEIN-PROTEIN INTERACTION · Homo sapiens
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As of 2026-09-14Protein identity stays anchored to UniProt O75144. Use UniProt O75144 as the stable identity anchor, then attach disease evidence before program review.
ICOS ligand
Review this target as ICOS-ICOSL, mapped to UniProt O75144. ChEMBL maps the protein component as ICOS ligand. Sequence length is 302 aa.
Protein source · UniProt accession via ChEMBL component mappingCross-source identity
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This review treats ICOS-ICOSL as ChEMBL target CHEMBL5482971, mapped to UniProt O75144. Disease framing currently uses the Open Targets-ready proxy contract.
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Start here when your first question is whether ICOS-ICOSL is the right protein anchor across sources, using UniProt O75144 as the stable mapping.
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Open Review-ready CardBasic Information
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| Preferred Name | ICOS-ICOSL |
| Target Type | PROTEIN-PROTEIN INTERACTION |
| Organism | Homo sapiens |
| UniProt | O75144 |
Next Actions
UniProt Target Context
Reviewable protein naming and mapping context for this target snapshot.
| Protein Label | ICOS ligand |
| UniProt Accession | O75144 |
| Component Type | Protein |
| Sequence Length | 302 aa |
ICOS ligand
How to read this target
Review this target as ICOS-ICOSL, mapped to UniProt O75144. ChEMBL maps the protein component as ICOS ligand. Sequence length is 302 aa.
Activity Type Distribution
Top Inhibitors (by pChEMBL)
| ChEMBL ID | pChEMBL | Type | Value (nM) | Phase |
|---|---|---|---|---|
| CHEMBL5591374 | 5.73 | IC50 | 1870.0 | Preclinical |
| CHEMBL5592269 | 5.43 | IC50 | 3680.0 | Preclinical |
| CHEMBL2171562 | 5.33 | IC50 | 4680.0 | Preclinical |
| CHEMBL5429501 | 5.25 | IC50 | 5650.0 | Preclinical |
| CHEMBL608154 | 4.99 | IC50 | 10320.0 | Preclinical |
| CHEMBL5404661 | 4.96 | IC50 | 11080.0 | Preclinical |
| CHEMBL79004 | 4.86 | IC50 | 13890.0 | Preclinical |
| CHEMBL2171561 | 4.81 | IC50 | 15510.0 | Preclinical |
| CHEMBL2171563 | 4.74 | IC50 | 18350.0 | Preclinical |
| CHEMBL78917 | 4.54 | IC50 | 28640.0 | Preclinical |
pChEMBL Value Distribution
Assay Landscape
Binding — 6 assays, 15 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| protein format | 5 | 15 | 4.9 |
| cell-based format | 1 | 0 | — |