Review anchor
Prostaglandin E2 receptor EP4 subtype
SINGLE PROTEIN · Rattus norvegicus
As of 2026-09-13
Evidence Snapshot
Prostaglandin E2 receptor EP4 subtype
CHEMBL4086
SINGLE PROTEIN
Rattus norvegicus
Identity Layer
Cross-source identity
Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.
This review treats Prostaglandin E2 receptor EP4 subtype as ChEMBL target CHEMBL4086, mapped to UniProt P43114. Disease framing currently uses the Open Targets-ready proxy contract.
ChEMBL target ID
CHEMBL4086
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine
As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P43114
Prostaglandin E2 receptor EP4 subtype
UniProt accession via ChEMBL component mapping
As of 2026-09-13
www.uniprot.org
Disease evidence contract
Open Targets-ready proxy
ChEMBL drug mechanism + indication proxy
ChEMBL drug mechanism + indication proxy
As of 2026-09-13
www.ebi.ac.uk
Reuse the same identifiers in notes, watch rules, exports, and review packs so provenance stays stable across surfaces.
Review-ready Target Rationale
Why Prostaglandin E2 receptor EP4 subtype matters
Prostaglandin E2 receptor EP4 subtype is reviewed as Prostaglandin E2 receptor EP4 subtype (UniProt P43114); the current evidence base includes 2 approved drugs, 121 compounds, and 18 assays, with lead potency reaching pChEMBL 9.3.
Protein context
Prostaglandin E2 receptor EP4 subtype
Prostaglandin E2 receptor EP4 subtype Sequence length is 488 aa.
Review this target as Prostaglandin E2 receptor EP4 subtype, mapped to UniProt P43114. Sequence length is 488 aa.
Protein source · UniProt accession via ChEMBL component mapping
UniProt P43114
Protein
Disease context
Disease signal
Disease relevance is not yet populated for this evidence card.
This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.
ChEMBL target recordActivity base
Portfolio and assay base
ChEMBL currently tracks 2 approved drugs, 121 compounds, and 18 assays for this target. The dominant activity type is EC50. CHEMBL378376 is the current potency anchor at pChEMBL 9.3.
Use CHEMBL378376 as the tractability anchor when discussing potency (pChEMBL 9.3).
Activity source · ChEMBL 36 via Core Engine
2 approved
pChEMBL 9.3
Source Guidance
Start with the right source
Pick the first block or linked source that matches the review question in front of you.
Need the shortest review narrative first?
Review-ready Target Rationale
One-page rationale with as-of-date and attribution
Start with the review rationale when you need to explain why Prostaglandin E2 receptor EP4 subtype matters before drilling into raw source blocks.
Jump to Review RationaleNeed stable protein naming or accession mapping?
UniProt Target Context
UniProt accession via ChEMBL component mapping
Go back to the target snapshot when you need the naming and mapping contract behind UniProt P43114, not just the summarized rationale.
Open Protein ContextNeed disease fit or evidence level for program framing?
Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy
Use the target snapshot disease block when you need the disease program and supporting signals, not only the card summary.
Open Disease ContextSnapshot State
No project snapshot selected. Export uses the live evidence card state.
121
Total Compounds
18
Total Assays
2
Approved Drugs
IC50: 58.0, KI: 5.0, EC50: 87.0, KD: 2.0
Activity Types
pChEMBL Activity Distribution
Top 5 Inhibitors (by pChEMBL)
| Structure | Compound | pChEMBL | Type | Phase |
|---|---|---|---|---|
|
|
No preferred name
CHEMBL378376
|
9.3 | EC50 | — |
|
|
No preferred name
CHEMBL379746
|
9.2 | EC50 | — |
|
|
No preferred name
CHEMBL2036316
|
9.2 | EC50 | — |
|
|
No preferred name
CHEMBL548
|
9.2 | EC50 | Approved |
|
|
No preferred name
CHEMBL597997
|
9.2 | Ki | — |
Approved Drugs
| Structure | Compound | First Approval |
|---|---|---|
|
|
DINOPROSTONE
CHEMBL548
|
1977 |
Source Header