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Target Snapshot

CHEMBL4954 Target Snapshot

Ephrin type-A receptor 3 · SINGLE PROTEIN · Homo sapiens

1,011Compounds
248Assays
14Approved Drugs
213.0Activities
Free Research Context

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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

Ephrin type-A receptor 3 shows clinical signal disease relevance led by glioblastoma multiforme. 2 more disease programs remain visible in the same review block. 1 linked drug keeps the current disease frame grounded. Protein identity stays anchored to UniProt P29320. Start with glioblastoma multiforme, then reuse UniProt P29320 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with glioblastoma multiforme, then reuse UniProt P29320 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 1 linked drug
Open source guide
Disease program
glioblastoma multiforme

Ephrin type-A receptor 3 shows clinical signal disease relevance led by glioblastoma multiforme. 2 more disease programs remain visible in the same review block. 1 linked drug remains visible in the same block.

Start review with glioblastoma multiforme because it currently carries clinical signal support. Linked drugs include KB-004. 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
Clinical signal Open Targets-ready proxy 1 linked drug
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 Ephrin type-A receptor 3 as ChEMBL target CHEMBL4954, mapped to UniProt P29320. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Ephrin type-A receptor 3
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL4954
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P29320
Ephrin type-A receptor 3
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 Ephrin type-A receptor 3 is the right protein anchor across sources, using UniProt P29320 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 glioblastoma multiforme is currently framed as clinical signal support. It currently carries 1 linked drug in the same disease frame.

Jump to Disease Context
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Evidence Card
Review-ready rationale with source-aware context

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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 LabelEphrin type-A receptor 3
UniProt AccessionP29320
Component TypeProtein
Sequence Length983 aa

Ephrin type-A receptor 3

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Ephrin type-A receptor 3, mapped to UniProt P29320. Sequence length is 983 aa.

Mapped IDP29320
Review nameEphrin type-A receptor 3
OrganismHomo sapiens
Disease Relevance

Disease Relevance & Evidence Level

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

Clinical signal Open Targets-ready proxy

Ephrin type-A receptor 3 shows clinical signal disease relevance led by glioblastoma multiforme. 2 more disease programs remain visible in the same review block.

Clinical signal Phase I
glioblastoma multiforme
1 linked drug · 1 direct · 1 efficacy
Linked drugKB-004
Clinical signal Phase I
myelodysplastic syndrome
1 linked drug · 1 direct · 1 efficacy
Linked drugKB-004
Clinical signal Phase I
primary myelofibrosis
1 linked drug · 1 direct · 1 efficacy
Linked drugKB-004
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with glioblastoma multiforme because it currently carries clinical signal support. Linked drugs include KB-004. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseglioblastoma multiforme
Strongest levelClinical signal
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

14
Approved
6
Phase III
7
Phase II
3
Phase I
Assay Mix

Activity Type Distribution

IC5055.0
EC503.0
KD155.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL5416410 10.03 Kd 0.093 Approved
CHEMBL249097 10.0 Kd 0.1 Preclinical
CHEMBL1421 9.52 IC50 0.3 Approved
CHEMBL3752910 9.52 IC50 0.3 Preclinical
CHEMBL1230609 9.0 Kd 1.0 Clinical
CHEMBL1784637 8.92 IC50 1.2 Preclinical
CHEMBL459850 8.7 EC50 2.0 Preclinical
CHEMBL2336005 8.29 IC50 5.1 Preclinical
CHEMBL288441 8.24 Kd 5.8 Approved
CHEMBL386051 8.12 Kd 7.6 Preclinical
Distribution

pChEMBL Value Distribution

26
5.0
27
5.5
13
6.0
5
6.5
10
7.0
7
7.5
5
8.0
2
8.5
1
9.0
3
9.5
pChEMBL
Approved Drugs

Approved Drugs

BOSUTINIB
CHEMBL288441
Approved 2012
CRIZOTINIB
CHEMBL601719
Approved 2011
NILOTINIB
CHEMBL255863
Approved 2007
DASATINIB
CHEMBL5416410
Approved 2006
DASATINIB ANHYDROUS
CHEMBL1421
Approved 2006
Assay Landscape

Assay Landscape

248
Total Assays
73
Tested Compounds
1
Assay Types
Binding — 248 assays, 73 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 200 56 6.4
assay format 30 5 7.4
cell-based format 16 11 6.4
cell membrane format 2 1 8.3

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine