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Target Snapshot

CHEMBL3197 Target Snapshot

Muscarinic acetylcholine receptor M2 · SINGLE PROTEIN · Mus musculus

46Compounds
16Assays
4Approved Drugs
28.0Activities
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

Protein identity stays anchored to UniProt Q9ERZ4. Use UniProt Q9ERZ4 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt Q9ERZ4 as the stable identity anchor, then attach disease evidence before program review.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-13
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 Muscarinic acetylcholine receptor M2 as ChEMBL target CHEMBL3197, mapped to UniProt Q9ERZ4. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Muscarinic acetylcholine receptor M2
SINGLE PROTEIN · Mus musculus
As of 2026-09-13
ChEMBL target ID
CHEMBL3197
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
Q9ERZ4
Muscarinic acetylcholine receptor M2
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

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UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Muscarinic acetylcholine receptor M2 is the right protein anchor across sources, using UniProt Q9ERZ4 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

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UniProt Context

UniProt Target Context

Reviewable protein naming and mapping context for this target snapshot.

Protein LabelMuscarinic acetylcholine receptor M2
UniProt AccessionQ9ERZ4
Component TypeProtein
Sequence Length466 aa

Muscarinic acetylcholine receptor M2

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Muscarinic acetylcholine receptor M2, mapped to UniProt Q9ERZ4. Sequence length is 466 aa.

Mapped IDQ9ERZ4
Review nameMuscarinic acetylcholine receptor M2
OrganismMus musculus
Clinical Profile

Clinical Phase Distribution

4
Approved
Assay Mix

Activity Type Distribution

IC5015.0
KI13.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL517712 9.46 Ki 0.35 Approved
CHEMBL7634 8.77 Ki 1.7 Preclinical
CHEMBL14 8.1 Ki 8.0 Approved
CHEMBL95 6.66 Ki 220.0 Approved
CHEMBL418712 6.4 IC50 400.0 Preclinical
CHEMBL107892 6.34 Ki 460.0 Preclinical
CHEMBL12858 6.33 IC50 470.0 Preclinical
CHEMBL13206 6.3 IC50 500.0 Preclinical
CHEMBL13166 6.28 IC50 520.0 Preclinical
CHEMBL418714 6.27 IC50 540.0 Preclinical
Distribution

pChEMBL Value Distribution

1
5.0
7
5.5
11
6.0
1
6.5
0
7.0
0
7.5
1
8.0
1
8.5
2
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

TACRINE
CHEMBL95
Approved 1993
CARBACHOL
CHEMBL14
Approved 1972
ATROPINE
CHEMBL517712
Approved 1960
Assay Landscape

Assay Landscape

16
Total Assays
21
Tested Compounds
2
Assay Types
Binding — 14 assays, 21 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 6 0
tissue-based format 6 21 6.3
single protein format 2 0
Functional — 2 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
organism-based format 2 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine