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Target Snapshot

CHEMBL1864 Target Snapshot

Thrombopoietin receptor · SINGLE PROTEIN · Homo sapiens

371Compounds
23Assays
1Approved Drugs
332.0Activities
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Broader Open DB context

Frame the target before identity details

Structured disease, protein, and project context should read before the lower-level identity rail.

As of 2026-09-13

Thrombopoietin receptor shows approved-linked disease relevance led by Thrombocytopenia. 5 more disease programs remain visible in the same review block. 8 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt P40238. Start with Thrombocytopenia, then reuse UniProt P40238 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with Thrombocytopenia, then reuse UniProt P40238 as the stable protein anchor across project notes and exports.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-13 8 linked drugs
Open source guide
Disease program
Thrombocytopenia

Thrombopoietin receptor shows approved-linked disease relevance led by Thrombocytopenia. 5 more disease programs remain visible in the same review block. 8 linked drugs remain visible in the same block.

Start review with Thrombocytopenia because it currently carries approved-linked support. Linked drugs include AVATROMBOPAG, AVATROMBOPAG MALEATE, ELTROMBOPAG CHOLINE, ELTROMBOPAG OLAMINE. 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 proxy
Approved-linked Open Targets-ready proxy 8 linked drugs
Open disease block
Identity Layer

Cross-source identity

Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.

This review treats Thrombopoietin receptor as ChEMBL target CHEMBL1864, mapped to UniProt P40238. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Thrombopoietin receptor
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL1864
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P40238
Thrombopoietin receptor
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.

Source Guidance

Start with the right source

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Need stable target naming and protein identity?
UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Thrombopoietin receptor is the right protein anchor across sources, using UniProt P40238 as the stable mapping.

Jump to Protein Context
Need disease fit before discussing compounds?
Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

Use this block first when you need to confirm why Thrombocytopenia is currently framed as approved-linked support. It currently carries 8 linked drugs in the same disease frame.

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Evidence Card
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Overview

Basic Information

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UniProt Context

UniProt Target Context

Reviewable protein naming and mapping context for this target snapshot.

Protein LabelThrombopoietin receptor
UniProt AccessionP40238
Component TypeProtein
Sequence Length635 aa

Thrombopoietin receptor

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Thrombopoietin receptor, mapped to UniProt P40238. Sequence length is 635 aa.

Mapped IDP40238
Review nameThrombopoietin receptor
OrganismHomo sapiens
Disease Relevance

Disease Relevance & Evidence Level

Open Targets-ready disease context using the current target-indication evidence contract.

Approved-linked Open Targets-ready proxy

Thrombopoietin receptor shows approved-linked disease relevance led by Thrombocytopenia. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
Thrombocytopenia
8 linked drugs · 8 direct · 8 efficacy
Linked drugAVATROMBOPAG
Linked drugAVATROMBOPAG MALEATE
Linked drugELTROMBOPAG CHOLINE
Linked drugELTROMBOPAG OLAMINE
Approved-linked Approved
autoimmune thrombocytopenic purpura
7 linked drugs · 7 direct · 7 efficacy
Linked drugAVATROMBOPAG
Linked drugELTROMBOPAG CHOLINE
Linked drugELTROMBOPAG OLAMINE
Linked drugHETROMBOPAG OLAMINE
Approved-linked Approved
aplastic anemia
5 linked drugs · 5 direct · 5 efficacy
Linked drugAVATROMBOPAG
Linked drugELTROMBOPAG CHOLINE
Linked drugHETROMBOPAG OLAMINE
Linked drugRAFUTROMBOPAG
Approved-linked Approved
severe aplastic anemia
4 linked drugs · 4 direct · 4 efficacy
Linked drugAVATROMBOPAG
Linked drugELTROMBOPAG OLAMINE
Linked drugHETROMBOPAG OLAMINE
Linked drugROMIPLOSTIM
Approved-linked Approved
hemorrhage
3 linked drugs · 3 direct · 3 efficacy
Linked drugAVATROMBOPAG
Linked drugLUSUTROMBOPAG
Linked drugROMIPLOSTIM
Approved-linked Approved
liver disease
3 linked drugs · 3 direct · 3 efficacy
Linked drugAVATROMBOPAG
Linked drugAVATROMBOPAG MALEATE
Linked drugRAFUTROMBOPAG
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with Thrombocytopenia because it currently carries approved-linked support. Linked drugs include AVATROMBOPAG, AVATROMBOPAG MALEATE, ELTROMBOPAG CHOLINE, ELTROMBOPAG OLAMINE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseThrombocytopenia
Strongest levelApproved-linked
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

1
Approved
Assay Mix

Activity Type Distribution

EC50332.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL1257604 8.52 EC50 3.0 Preclinical
CHEMBL1257603 8.22 EC50 6.0 Preclinical
CHEMBL429295 8.15 EC50 7.0 Preclinical
CHEMBL248218 8.05 EC50 9.0 Preclinical
CHEMBL455654 8.0 EC50 10.0 Preclinical
CHEMBL248390 7.96 EC50 11.0 Preclinical
CHEMBL249471 7.89 EC50 13.0 Preclinical
CHEMBL3144775 7.7 EC50 20.0 Preclinical
CHEMBL498173 7.68 EC50 21.0 Preclinical
CHEMBL440231 7.66 EC50 22.0 Preclinical
Distribution

pChEMBL Value Distribution

31
5.0
36
5.5
59
6.0
60
6.5
64
7.0
20
7.5
5
8.0
1
8.5
0
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

ELTROMBOPAG
CHEMBL461101
Approved 2008
Assay Landscape

Assay Landscape

23
Total Assays
216
Tested Compounds
3
Assay Types
Functional — 15 assays, 216 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 12 166 6.7
assay format 3 50 6.3
Binding — 7 assays, 52 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 7 52 6.4
ADME — 1 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 1 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine