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Target Snapshot

CHEMBL3371 Target Snapshot

5-hydroxytryptamine receptor 6 · SINGLE PROTEIN · Homo sapiens

6,568Compounds
880Assays
133Approved Drugs
8,019.0Activities
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

5-hydroxytryptamine receptor 6 shows late clinical disease relevance led by Alzheimer disease. 3 more disease programs remain visible in the same review block. 5 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt P50406. Start with Alzheimer disease, then reuse UniProt P50406 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with Alzheimer disease, then reuse UniProt P50406 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 5 linked drugs
Open source guide
Disease program
Alzheimer disease

5-hydroxytryptamine receptor 6 shows late clinical disease relevance led by Alzheimer disease. 3 more disease programs remain visible in the same review block. 5 linked drugs remain visible in the same block.

Start review with Alzheimer disease because it currently carries late clinical support. Linked drugs include CERLAPIRDINE, IDALOPIRDINE, INTEPIRDINE, MASUPIRDINE. 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
Late clinical Open Targets-ready proxy 5 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 5-hydroxytryptamine receptor 6 as ChEMBL target CHEMBL3371, mapped to UniProt P50406. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
5-hydroxytryptamine receptor 6
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL3371
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P50406
5-hydroxytryptamine receptor 6
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 5-hydroxytryptamine receptor 6 is the right protein anchor across sources, using UniProt P50406 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 late clinical support. It currently carries 5 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 Label5-hydroxytryptamine receptor 6
UniProt AccessionP50406
Component TypeProtein
Sequence Length440 aa

5-hydroxytryptamine receptor 6

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as 5-hydroxytryptamine receptor 6, mapped to UniProt P50406. Sequence length is 440 aa.

Mapped IDP50406
Review name5-hydroxytryptamine receptor 6
OrganismHomo sapiens
Disease Relevance

Disease Relevance & Evidence Level

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

Late clinical Open Targets-ready proxy

5-hydroxytryptamine receptor 6 shows late clinical disease relevance led by Alzheimer disease. 3 more disease programs remain visible in the same review block.

Late clinical Phase III
Alzheimer disease
5 linked drugs · 5 direct · 5 efficacy
Linked drugCERLAPIRDINE
Linked drugIDALOPIRDINE
Linked drugINTEPIRDINE
Linked drugMASUPIRDINE
Clinical signal Phase II
Cognitive impairment
1 linked drug · 1 direct · 1 efficacy
Linked drugIDALOPIRDINE
Clinical signal Phase II
Dementia
1 linked drug · 1 direct · 1 efficacy
Linked drugINTEPIRDINE
Clinical signal Phase II
schizophrenia
1 linked drug · 1 direct · 1 efficacy
Linked drugIDALOPIRDINE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with Alzheimer disease because it currently carries late clinical support. Linked drugs include CERLAPIRDINE, IDALOPIRDINE, INTEPIRDINE, MASUPIRDINE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseAlzheimer disease
Strongest levelLate clinical
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

133
Approved
22
Phase III
27
Phase II
1
Phase I
Assay Mix

Activity Type Distribution

IC501,868.0
KI5,911.0
EC50156.0
KD84.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL3329438 10.4 Ki 0.04 Preclinical
CHEMBL3785512 10.3 Kd 0.05012 Preclinical
CHEMBL3692995 10.3 Ki 0.05 Preclinical
CHEMBL1084794 10.3 Ki 0.05012 Preclinical
CHEMBL398034 10.2 Ki 0.0631 Preclinical
CHEMBL1085462 10.2 Ki 0.0631 Preclinical
CHEMBL362628 10.19 EC50 0.06457 Preclinical
CHEMBL5894995 10.18 IC50 0.066 Preclinical
CHEMBL6037204 10.13 IC50 0.074 Preclinical
CHEMBL1086326 10.1 Ki 0.07943 Preclinical
Distribution

pChEMBL Value Distribution

207
5.0
442
5.5
551
6.0
725
6.5
881
7.0
924
7.5
876
8.0
664
8.5
429
9.0
147
9.5
pChEMBL
Approved Drugs

Approved Drugs

BREXPIPRAZOLE
CHEMBL2105760
Approved 2015
VILAZODONE HYDROCHLORIDE
CHEMBL1615374
Approved 2011
ASENAPINE
CHEMBL3187365
Approved 2009
RASAGILINE
CHEMBL887
Approved 2005
ARIPIPRAZOLE
CHEMBL1112
Approved 2002
ESCITALOPRAM
CHEMBL1508
Approved 2002
TEGASEROD MALEATE
CHEMBL1516474
Approved 2002
DESLORATADINE
CHEMBL1172
Approved 2001
ZIPRASIDONE
CHEMBL708
Approved 2001
KETOTIFEN
CHEMBL534
Approved 1999
KETOTIFEN FUMARATE
CHEMBL1633
Approved 1999
RALOXIFENE
CHEMBL81
Approved 1997
SERTINDOLE
CHEMBL12713
Approved 1996
OLANZAPINE
CHEMBL715
Approved 1996
CARVEDILOL
CHEMBL723
Approved 1995
RISPERIDONE
CHEMBL85
Approved 1993
PAROXETINE
CHEMBL490
Approved 1992
PROPAFENONE
CHEMBL631
Approved 1989
CLOMIPRAMINE
CHEMBL415
Approved 1989
CLOZAPINE
CHEMBL42
Approved 1989
PERGOLIDE
CHEMBL531
Approved 1988
FLUOXETINE
CHEMBL41
Approved 1987
OXYMETAZOLINE
CHEMBL762
Approved 1986
TERFENADINE
CHEMBL17157
Approved 1985
PIMOZIDE
CHEMBL1423
Approved 1984
MAPROTILINE
CHEMBL21731
Approved 1980
AMOXAPINE
CHEMBL1113
Approved 1980
DAPSONE
CHEMBL1043
Approved 1979
BROMOCRIPTINE
CHEMBL493
Approved 1978
CLEMASTINE
CHEMBL1626
Approved 1977
LOXAPINE
CHEMBL831
Approved 1975
MITOTANE
CHEMBL1670
Approved 1970
DOXEPIN
CHEMBL1628227
Approved 1969
CHLORPROTHIXENE
CHEMBL908
Approved 1967
PROPRANOLOL HYDROCHLORIDE
CHEMBL1671
Approved 1967
NORTRIPTYLINE
CHEMBL445
Approved 1964
METHYSERGIDE
CHEMBL1065
Approved 1962
THIORIDAZINE
CHEMBL479
Approved 1962
CYPROHEPTADINE
CHEMBL516
Approved 1961
AMITRIPTYLINE
CHEMBL629
Approved 1961
FLUPHENAZINE
CHEMBL726
Approved 1959
ORPHENADRINE
CHEMBL900
Approved 1957
CHLORPROMAZINE
CHEMBL71
Approved 1957
PROMAZINE
CHEMBL564
Approved 1956
PROCHLORPERAZINE
CHEMBL728
Approved 1956
ERGOTAMINE
CHEMBL442
Approved 1948
DIHYDROERGOTAMINE
CHEMBL1732
Approved 1946
METHYLERGONOVINE
CHEMBL1201356
Approved 1946
DIHYDROERGOTAMINE MESYLATE
CHEMBL1200517
Approved 1946
Assay Landscape

Assay Landscape

880
Total Assays
4,232
Tested Compounds
3
Assay Types
Binding — 664 assays, 4,232 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 357 964 7.7
cell-based format 273 2,556 7.4
cell membrane format 25 405 7.5
assay format 8 285 8.4
mitochondrion format 1 22 8.2
Functional — 211 assays, 914 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 180 856 7.2
assay format 26 33 7.7
cell membrane format 3 24 7.2
single protein format 2 1 8.0
ADME — 5 assays, 18 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 4 18 6.4
single protein format 1 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine