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Target Snapshot

CHEMBL4306 Target Snapshot

Potassium voltage-gated channel subfamily A member 5 · SINGLE PROTEIN · Homo sapiens

1,148Compounds
127Assays
6Approved Drugs
952.0Activities
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

Potassium voltage-gated channel subfamily A member 5 shows approved-linked disease relevance led by atrial fibrillation. 1 more disease program remain visible in the same review block. 1 linked drug keeps the current disease frame grounded. Protein identity stays anchored to UniProt P22460. Start with atrial fibrillation, then reuse UniProt P22460 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with atrial fibrillation, then reuse UniProt P22460 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 1 linked drug
Open source guide
Disease program
atrial fibrillation

Potassium voltage-gated channel subfamily A member 5 shows approved-linked disease relevance led by atrial fibrillation. 1 more disease program remain visible in the same review block. 1 linked drug remains visible in the same block.

Start review with atrial fibrillation because it currently carries approved-linked support. Linked drugs include VERNAKALANT HYDROCHLORIDE. 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 1 linked drug
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 Potassium voltage-gated channel subfamily A member 5 as ChEMBL target CHEMBL4306, mapped to UniProt P22460. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Potassium voltage-gated channel subfamily A member 5
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL4306
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P22460
Potassium voltage-gated channel subfamily A member 5
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 Potassium voltage-gated channel subfamily A member 5 is the right protein anchor across sources, using UniProt P22460 as the stable mapping.

Jump to Protein Context
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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

Use this block first when you need to confirm why atrial fibrillation is currently framed as approved-linked support. It currently carries 1 linked drug 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 LabelPotassium voltage-gated channel subfamily A member 5
UniProt AccessionP22460
Component TypeProtein
Sequence Length613 aa

Potassium voltage-gated channel subfamily A member 5

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Potassium voltage-gated channel subfamily A member 5, mapped to UniProt P22460. Sequence length is 613 aa.

Mapped IDP22460
Review namePotassium voltage-gated channel subfamily A member 5
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

Potassium voltage-gated channel subfamily A member 5 shows approved-linked disease relevance led by atrial fibrillation. 1 more disease program remain visible in the same review block.

Approved-linked Approved
atrial fibrillation
1 linked drug · 1 direct · 1 efficacy
Linked drugVERNAKALANT HYDROCHLORIDE
Late clinical Phase III
atrial flutter
1 linked drug · 1 direct · 1 efficacy
Linked drugVERNAKALANT HYDROCHLORIDE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with atrial fibrillation because it currently carries approved-linked support. Linked drugs include VERNAKALANT HYDROCHLORIDE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseatrial fibrillation
Strongest levelApproved-linked
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

6
Approved
1
Phase II
1
Phase I
Assay Mix

Activity Type Distribution

IC50908.0
EC5039.0
KD5.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL1256851 8.11 IC50 7.7 Preclinical
CHEMBL4065169 8.05 IC50 9.0 Preclinical
CHEMBL3940526 8.0 EC50 10.0 Preclinical
CHEMBL3961395 8.0 EC50 10.0 Preclinical
CHEMBL4104525 7.96 IC50 11.0 Preclinical
CHEMBL3960875 7.92 EC50 12.0 Preclinical
CHEMBL571976 7.82 IC50 15.0 Preclinical
CHEMBL3899148 7.7 EC50 20.0 Preclinical
CHEMBL216281 7.68 IC50 21.0 Preclinical
CHEMBL3298226 7.66 IC50 22.0 Preclinical
Distribution

pChEMBL Value Distribution

122
5.0
115
5.5
199
6.0
227
6.5
106
7.0
20
7.5
4
8.0
0
8.5
0
9.0
0
9.5
pChEMBL
Assay Landscape

Assay Landscape

127
Total Assays
729
Tested Compounds
4
Assay Types
Binding — 106 assays, 729 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 58 557 6.2
single protein format 40 167 6.2
assay format 8 5 6.5
Functional — 14 assays, 61 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 10 55 6.5
assay format 4 6 5.8
ADME — 5 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 4 0
cell-based format 1 0
Toxicity — 2 assays, 1 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 2 1 5.3

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine