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Target Snapshot

CHEMBL3307224 Target Snapshot

Nonstructural protein 5A · SINGLE PROTEIN · Hepatitis C virus

802Compounds
268Assays
8Approved Drugs
1,649.0Activities
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 2026-09-14

Nonstructural protein 5A shows approved-linked disease relevance led by chronic hepatitis C virus infection. 5 more disease programs remain visible in the same review block. 10 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt Q5L478. Start with chronic hepatitis C virus infection, then reuse UniProt Q5L478 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with chronic hepatitis C virus infection, then reuse UniProt Q5L478 as the stable protein anchor across project notes and exports.

ChEMBL component mapping + Open Targets-ready proxy + ChEMBL 36 via Core Engine 2026-09-14 10 linked drugs
Open source guide
Disease program
chronic hepatitis C virus infection

Nonstructural protein 5A shows approved-linked disease relevance led by chronic hepatitis C virus infection. 5 more disease programs remain visible in the same review block. 10 linked drugs remain visible in the same block.

Start review with chronic hepatitis C virus infection because it currently carries approved-linked support. Linked drugs include DACLATASVIR DIHYDROCHLORIDE, ELBASVIR, LEDIPASVIR, ODALASVIR. 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 10 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 Nonstructural protein 5A as ChEMBL target CHEMBL3307224, mapped to UniProt Q5L478. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Nonstructural protein 5A
SINGLE PROTEIN · Hepatitis C virus
As of 2026-09-14
ChEMBL target ID
CHEMBL3307224
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
Q5L478
Nonstructural protein 5A
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 Nonstructural protein 5A is the right protein anchor across sources, using UniProt Q5L478 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 chronic hepatitis C virus infection is currently framed as approved-linked support. It currently carries 10 linked drugs in the same disease frame.

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Evidence Card
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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 LabelNonstructural protein 5A
UniProt AccessionQ5L478
Component TypeProtein
Sequence Length447 aa

Nonstructural protein 5A

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Nonstructural protein 5A, mapped to UniProt Q5L478. Sequence length is 447 aa.

Mapped IDQ5L478
Review nameNonstructural protein 5A
OrganismHepatitis C virus
Disease Relevance

Disease Relevance & Evidence Level

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

Approved-linked Open Targets-ready proxy

Nonstructural protein 5A shows approved-linked disease relevance led by chronic hepatitis C virus infection. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
chronic hepatitis C virus infection
10 linked drugs · 10 direct · 10 efficacy
Linked drugDACLATASVIR DIHYDROCHLORIDE
Linked drugELBASVIR
Linked drugLEDIPASVIR
Linked drugODALASVIR
Approved-linked Approved
hepatitis C virus infection
8 linked drugs · 8 direct · 8 efficacy
Linked drugELBASVIR
Linked drugLEDIPASVIR
Linked drugOMBITASVIR
Linked drugPIBRENTASVIR
Approved-linked Approved
viral disease
2 linked drugs · 2 direct · 2 efficacy
Linked drugELBASVIR
Linked drugRAVIDASVIR
Late clinical Phase III
COVID-19
1 linked drug · 1 direct · 1 efficacy
Linked drugLEDIPASVIR
Late clinical Phase III
infection
1 linked drug · 1 direct · 1 efficacy
Linked drugLEDIPASVIR
Clinical signal Phase II
hepatitis B virus infection
2 linked drugs · 2 direct · 2 efficacy
Linked drugLEDIPASVIR
Linked drugOMBITASVIR
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with chronic hepatitis C virus infection because it currently carries approved-linked support. Linked drugs include DACLATASVIR DIHYDROCHLORIDE, ELBASVIR, LEDIPASVIR, ODALASVIR. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseasechronic hepatitis C virus infection
Strongest levelApproved-linked
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

8
Approved
1
Phase III
3
Phase II
Assay Mix

Activity Type Distribution

IC50245.0
EC501,404.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL3360472 11.0 EC50 0.01 Preclinical
CHEMBL3545062 11.0 EC50 0.01 Approved
CHEMBL3763799 11.0 EC50 0.01 Preclinical
CHEMBL3765311 11.0 EC50 0.01 Preclinical
CHEMBL4214282 11.0 EC50 0.01 Preclinical
CHEMBL4440405 11.0 EC50 0.01 Preclinical
CHEMBL4443067 11.0 EC50 0.01 Preclinical
CHEMBL4543823 11.0 EC50 0.01 Preclinical
CHEMBL4575259 11.0 EC50 0.01 Preclinical
CHEMBL4579455 11.0 EC50 0.01 Preclinical
Distribution

pChEMBL Value Distribution

2
5.0
11
5.5
34
6.0
41
6.5
76
7.0
77
7.5
95
8.0
114
8.5
140
9.0
178
9.5
pChEMBL
Approved Drugs

Approved Drugs

PIBRENTASVIR
CHEMBL3545123
Approved 2017
VELPATASVIR
CHEMBL3545062
Approved 2016
ELBASVIR
CHEMBL3039514
Approved 2016
OMBITASVIR
CHEMBL3127326
Approved 2014
DACLATASVIR
CHEMBL2023898
Approved 2014
LEDIPASVIR
CHEMBL2374220
Approved 2014
Assay Landscape

Assay Landscape

268
Total Assays
583
Tested Compounds
1
Assay Types
Binding — 268 assays, 583 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 186 407 9.3
single protein format 66 106 9.2
assay format 16 70 9.4

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine