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Target Snapshot

CHEMBL220 Target Snapshot

Acetylcholinesterase · SINGLE PROTEIN · Homo sapiens

10,938Compounds
2,330Assays
67Approved Drugs
11,954.0Activities
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

Acetylcholinesterase shows approved-linked disease relevance led by Alzheimer disease. 5 more disease programs remain visible in the same review block. 4 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt P22303. Start with Alzheimer disease, then reuse UniProt P22303 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with Alzheimer disease, then reuse UniProt P22303 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 4 linked drugs
Open source guide
Disease program
Alzheimer disease

Acetylcholinesterase shows approved-linked disease relevance led by Alzheimer disease. 5 more disease programs remain visible in the same review block. 4 linked drugs remain visible in the same block.

Start review with Alzheimer disease because it currently carries approved-linked support. Linked drugs include BENZGALANTAMINE GLUCONATE, DONEPEZIL HYDROCHLORIDE, GALANTAMINE HYDROBROMIDE, HUPERZINE A. 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 4 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 Acetylcholinesterase as ChEMBL target CHEMBL220, mapped to UniProt P22303. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Acetylcholinesterase
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL220
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P22303
Acetylcholinesterase
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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Need stable target naming and protein identity?
UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Acetylcholinesterase is the right protein anchor across sources, using UniProt P22303 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 Alzheimer disease is currently framed as approved-linked support. It currently carries 4 linked drugs in the same disease frame.

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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 LabelAcetylcholinesterase
UniProt AccessionP22303
Component TypeProtein
Sequence Length614 aa

Acetylcholinesterase

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Acetylcholinesterase, mapped to UniProt P22303. Sequence length is 614 aa.

Mapped IDP22303
Review nameAcetylcholinesterase
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

Acetylcholinesterase shows approved-linked disease relevance led by Alzheimer disease. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
Alzheimer disease
4 linked drugs · 4 direct · 4 efficacy
Linked drugBENZGALANTAMINE GLUCONATE
Linked drugDONEPEZIL HYDROCHLORIDE
Linked drugGALANTAMINE HYDROBROMIDE
Linked drugHUPERZINE A
Approved-linked Approved
dementia
3 linked drugs · 3 direct · 3 efficacy
Linked drugBENZGALANTAMINE GLUCONATE
Linked drugDONEPEZIL HYDROCHLORIDE
Linked drugGALANTAMINE HYDROBROMIDE
Approved-linked Approved
Myasthenia gravis
3 linked drugs · 3 direct · 3 efficacy
Linked drugNEOSTIGMINE METHYLSULFATE
Linked drugPRALIDOXIME CHLORIDE
Linked drugPYRIDOSTIGMINE BROMIDE
Approved-linked Approved
glaucoma
2 linked drugs · 2 direct · 2 efficacy
Linked drugECHOTHIOPHATE
Linked drugISOFLUROPHATE
Approved-linked Approved
major depressive disorder
1 linked drug · 1 direct · 1 efficacy
Linked drugMINAPRINE
Approved-linked Approved
poisoning
1 linked drug · 1 direct · 1 efficacy
Linked drugPRALIDOXIME CHLORIDE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with Alzheimer disease because it currently carries approved-linked support. Linked drugs include BENZGALANTAMINE GLUCONATE, DONEPEZIL HYDROCHLORIDE, GALANTAMINE HYDROBROMIDE, HUPERZINE A. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

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

Clinical Phase Distribution

67
Approved
11
Phase III
37
Phase II
6
Phase I
1
Phase 0.5
Assay Mix

Activity Type Distribution

IC509,692.0
KI1,904.0
EC5063.0
KD295.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL3585779 10.98 Ki 0.0105 Preclinical
CHEMBL4205425 10.96 IC50 0.01095 Preclinical
CHEMBL489454 10.93 Ki 0.0118 Preclinical
CHEMBL4205954 10.88 IC50 0.01323 Preclinical
CHEMBL4209803 10.87 IC50 0.01352 Preclinical
CHEMBL225567 10.85 Ki 0.014 Preclinical
CHEMBL4217663 10.85 IC50 0.01415 Preclinical
CHEMBL4210316 10.84 IC50 0.01441 Preclinical
CHEMBL223443 10.82 Ki 0.015 Preclinical
CHEMBL4214430 10.78 IC50 0.01672 Preclinical
Distribution

pChEMBL Value Distribution

1130
5.0
993
5.5
1032
6.0
929
6.5
798
7.0
644
7.5
460
8.0
188
8.5
168
9.0
53
9.5
pChEMBL
Approved Drugs

Approved Drugs

NEOSTIGMINE METHYLSULFATE
CHEMBL211471
Approved 2013
PAZOPANIB
CHEMBL477772
Approved 2009
RASAGILINE
CHEMBL887
Approved 2005
SERTACONAZOLE
CHEMBL1201196
Approved 2003
ALFUZOSIN
CHEMBL709
Approved 2003
MEMANTINE
CHEMBL807
Approved 2002
GALANTAMINE
CHEMBL659
Approved 2001
RIVASTIGMINE
CHEMBL636
Approved 1998
RALOXIFENE
CHEMBL81
Approved 1997
DONEPEZIL HYDROCHLORIDE
CHEMBL1678
Approved 1996
DONEPEZIL
CHEMBL502
Approved 1996
IRINOTECAN
CHEMBL481
Approved 1996
TACRINE
CHEMBL95
Approved 1993
TACRINE HYDROCHLORIDE
CHEMBL1677
Approved 1993
FLUOXETINE
CHEMBL41
Approved 1987
RANITIDINE
CHEMBL1790041
Approved 1983
ETHOPROPAZINE
CHEMBL1206
Approved 1982
DYCLONINE
CHEMBL1201217
Approved 1982
DECAMETHONIUM BROMIDE
CHEMBL1134
Approved 1982
ISOFLUROPHATE
CHEMBL1025
Approved 1957
PYRIDOSTIGMINE BROMIDE
CHEMBL812
Approved 1955
METHOXSALEN
CHEMBL416
Approved 1954
EDROPHONIUM CHLORIDE
CHEMBL1128
Approved 1951
PROCAINAMIDE
CHEMBL640
Approved 1950
Assay Landscape

Assay Landscape

2,330
Total Assays
6,425
Tested Compounds
4
Assay Types
Binding — 2,280 assays, 6,425 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 1,847 5,269 6.3
cell-based format 189 568 6.2
assay format 166 445 6.6
tissue-based format 30 106 5.9
cell membrane format 28 1 6.9
organism-based format 14 0
cell-free format 5 34 5.3
subcellular format 1 2 6.6
ADME — 27 assays, 130 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 19 78 5.4
cell-based format 5 30 5.8
cell membrane format 2 0
assay format 1 22 4.8
Functional — 22 assays, 53 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 18 53 6.3
cell-based format 2 0
organism-based format 1 0
tissue-based format 1 0
Toxicity — 1 assays, 30 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 1 30

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine