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Target Snapshot

CHEMBL2189159 Target Snapshot

Indoleamine 2,3-dioxygenase 2 · SINGLE PROTEIN · Mus musculus

92Compounds
6Assays
10Approved Drugs
44.0Activities
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 2026-09-14

Protein identity stays anchored to UniProt Q8R0V5. Use UniProt Q8R0V5 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt Q8R0V5 as the stable identity anchor, then attach disease evidence before program review.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-14
Open source guide
Identity Layer

Cross-source identity

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

This review treats Indoleamine 2,3-dioxygenase 2 as ChEMBL target CHEMBL2189159, mapped to UniProt Q8R0V5. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Indoleamine 2,3-dioxygenase 2
SINGLE PROTEIN · Mus musculus
As of 2026-09-14
ChEMBL target ID
CHEMBL2189159
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
Q8R0V5
Indoleamine 2,3-dioxygenase 2
UniProt accession via ChEMBL component mapping As of 2026-09-14
www.uniprot.org
Disease evidence contract
Open Targets-ready proxy
ChEMBL drug mechanism + indication proxy
ChEMBL drug mechanism + indication proxy As of 2026-09-14
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

Choose the first block or source based on the question you are trying to answer.

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

Start here when your first question is whether Indoleamine 2,3-dioxygenase 2 is the right protein anchor across sources, using UniProt Q8R0V5 as the stable mapping.

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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

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Evidence Card
Review-ready rationale with source-aware context

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Overview

Basic Information

Verify identity, organism, and the fastest next research jumps from the same page.

UniProt Context

UniProt Target Context

Reviewable protein naming and mapping context for this target snapshot.

Protein LabelIndoleamine 2,3-dioxygenase 2
UniProt AccessionQ8R0V5
Component TypeProtein
Sequence Length405 aa

Indoleamine 2,3-dioxygenase 2

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Indoleamine 2,3-dioxygenase 2, mapped to UniProt Q8R0V5. Sequence length is 405 aa.

Mapped IDQ8R0V5
Review nameIndoleamine 2,3-dioxygenase 2
OrganismMus musculus
Clinical Profile

Clinical Phase Distribution

10
Approved
2
Phase III
1
Phase II
Assay Mix

Activity Type Distribution

IC5044.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL193 5.82 IC50 1500.0 Approved
CHEMBL1475252 5.75 IC50 1800.0 Clinical
CHEMBL192 5.35 IC50 4500.0 Approved
CHEMBL408 5.35 IC50 4500.0 Approved
CHEMBL104 5.23 IC50 5900.0 Approved
CHEMBL91 5.17 IC50 6700.0 Approved
CHEMBL4578334 5.12 IC50 7680.0 Preclinical
CHEMBL808 5.12 IC50 7600.0 Approved
CHEMBL480 5.09 IC50 8200.0 Approved
CHEMBL4438707 5.06 IC50 8770.0 Preclinical
Distribution

pChEMBL Value Distribution

14
5.0
2
5.5
0
6.0
0
6.5
0
7.0
0
7.5
0
8.0
0
8.5
0
9.0
0
9.5
pChEMBL
Assay Landscape

Assay Landscape

6
Total Assays
44
Tested Compounds
1
Assay Types
Binding — 6 assays, 44 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 6 44 4.9

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine