Skip to main content
Free research Free research Free target review with research home and workspace preview
Quick search ChEMBL 36
Loading Target Snapshot...
Querying ChEMBL database. This may take a few seconds.
Target Snapshot

CHEMBL2111333 Target Snapshot

Serotonin 3 receptor (5HT3) · PROTEIN FAMILY · Mus musculus

49Compounds
30Assays
3Approved Drugs
31.0Activities
Free Research Context

Research home keeps recent targets

This target will appear in recent viewed items on this browser. Use the demo workspace to preview watch rules and decision queues.

Navigation

Switch target

Move to another high-traffic target or paste a specific ChEMBL target ID.

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 Q9JHJ5. Use UniProt Q9JHJ5 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt Q9JHJ5 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 Serotonin 3 receptor (5HT3) as ChEMBL target CHEMBL2111333, mapped to UniProt Q9JHJ5. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Serotonin 3 receptor (5HT3)
PROTEIN FAMILY · Mus musculus
As of 2026-09-14
ChEMBL target ID
CHEMBL2111333
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
Q9JHJ5
5-hydroxytryptamine receptor 3B
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 Serotonin 3 receptor (5HT3) is the right protein anchor across sources, using UniProt Q9JHJ5 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 the strongest disease program and evidence level in one place.

Jump to Disease Context
Need a meeting-ready explanation of why this target matters?
Evidence Card
Review-ready rationale with source-aware context

Open the one-page evidence card when you want the rationale, activity base, and attribution together.

Open Review-ready Card
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 Label5-hydroxytryptamine receptor 3B
UniProt AccessionQ9JHJ5
Component TypeProtein
Sequence Length437 aa

5-hydroxytryptamine receptor 3B

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Serotonin 3 receptor (5HT3), mapped to UniProt Q9JHJ5. ChEMBL maps the protein component as 5-hydroxytryptamine receptor 3B. Sequence length is 437 aa.

Mapped IDQ9JHJ5
Review nameSerotonin 3 receptor (5HT3)
OrganismMus musculus
Clinical Profile

Clinical Phase Distribution

3
Approved
2
Phase III
2
Phase II
Assay Mix

Activity Type Distribution

IC5017.0
KI14.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL18041 8.88 Ki 1.32 Clinical
CHEMBL56564 8.42 Ki 3.8 Clinical
CHEMBL18772 8.06 Ki 8.67 Clinical
CHEMBL27846 8.02 Ki 9.5 Preclinical
CHEMBL46 7.92 Ki 12.0 Approved
CHEMBL86 6.7 Ki 200.0 Approved
CHEMBL6437 6.6 Ki 252.0 Approved
CHEMBL39 6.44 Ki 361.0 Clinical
CHEMBL266591 5.84 Ki 1430.0 Preclinical
CHEMBL422453 5.45 IC50 3590.0 Preclinical
Distribution

pChEMBL Value Distribution

3
5.0
1
5.5
1
6.0
2
6.5
0
7.0
1
7.5
3
8.0
1
8.5
0
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

ONDANSETRON
CHEMBL46
Approved 1991
METOCLOPRAMIDE
CHEMBL86
Approved 1979
Assay Landscape

Assay Landscape

30
Total Assays
21
Tested Compounds
2
Assay Types
Binding — 24 assays, 21 compounds
BAO Format Assays Compounds Avg pChEMBL
protein format 12 2 7.4
cell-based format 8 18 5.8
assay format 3 1 4.7
organism-based format 1 0
Functional — 6 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
organism-based format 6 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine