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Target Snapshot

CHEMBL2883 Target Snapshot

Thymidine kinase, cytosolic · SINGLE PROTEIN · Homo sapiens

369Compounds
144Assays
3Approved Drugs
312.0Activities
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

Protein identity stays anchored to UniProt P04183. Use UniProt P04183 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P04183 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 Thymidine kinase, cytosolic as ChEMBL target CHEMBL2883, mapped to UniProt P04183. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Thymidine kinase, cytosolic
SINGLE PROTEIN · Homo sapiens
As of 2026-09-14
ChEMBL target ID
CHEMBL2883
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P04183
Thymidine kinase, cytosolic
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

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UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Thymidine kinase, cytosolic is the right protein anchor across sources, using UniProt P04183 as the stable mapping.

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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

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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 LabelThymidine kinase, cytosolic
UniProt AccessionP04183
Component TypeProtein
Sequence Length234 aa

Thymidine kinase, cytosolic

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Thymidine kinase, cytosolic, mapped to UniProt P04183. Sequence length is 234 aa.

Mapped IDP04183
Review nameThymidine kinase, cytosolic
OrganismHomo sapiens
Clinical Profile

Clinical Phase Distribution

3
Approved
5
Phase II
2
Phase I
Assay Mix

Activity Type Distribution

IC50233.0
KI63.0
EC5015.0
KD1.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL132598 8.7 IC50 2.0 Preclinical
CHEMBL5653589 7.81 Kd 15.33 Preclinical
CHEMBL52609 7.8 IC50 16.0 Clinical
CHEMBL406254 7.3 Ki 50.0 Preclinical
CHEMBL1269499 7.05 Ki 90.0 Preclinical
CHEMBL788 7.05 Ki 90.0 Approved
CHEMBL31634 7.0 Ki 100.0 Clinical
CHEMBL271475 6.85 Ki 140.0 Clinical
CHEMBL101135 6.75 IC50 180.0 Preclinical
CHEMBL475717 6.75 Ki 180.0 Preclinical
Distribution

pChEMBL Value Distribution

18
5.0
18
5.5
3
6.0
7
6.5
4
7.0
3
7.5
1
8.0
1
8.5
0
9.0
0
9.5
pChEMBL
Approved Drugs

Approved Drugs

IDOXURIDINE
CHEMBL788
Approved 1963
Assay Landscape

Assay Landscape

144
Total Assays
99
Tested Compounds
3
Assay Types
Binding — 127 assays, 99 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 109 92 5.1
cell-based format 14 5 6.8
assay format 3 1 5.4
mitochondrion format 1 1
Functional — 16 assays, 10 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 16 10 5.0
ADME — 1 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 1 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine