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

CHEMBL1952 Target Snapshot

Thymidylate synthase · SINGLE PROTEIN · Homo sapiens

1,038Compounds
367Assays
8Approved Drugs
1,070.0Activities
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 2026-09-13

Thymidylate synthase shows approved-linked disease relevance led by colorectal cancer. 5 more disease programs remain visible in the same review block. 8 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt P04818. Start with colorectal cancer, then reuse UniProt P04818 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with colorectal cancer, then reuse UniProt P04818 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 8 linked drugs
Open source guide
Disease program
colorectal cancer

Thymidylate synthase shows approved-linked disease relevance led by colorectal cancer. 5 more disease programs remain visible in the same review block. 8 linked drugs remain visible in the same block.

Start review with colorectal cancer because it currently carries approved-linked support. Linked drugs include CAPECITABINE, FLOXURIDINE, FLUOROURACIL, OSI-7904. 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 8 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 Thymidylate synthase as ChEMBL target CHEMBL1952, mapped to UniProt P04818. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Thymidylate synthase
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL1952
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P04818
Thymidylate synthase
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

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 Thymidylate synthase is the right protein anchor across sources, using UniProt P04818 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 colorectal cancer is currently framed as approved-linked support. It currently carries 8 linked drugs in the same disease frame.

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 LabelThymidylate synthase
UniProt AccessionP04818
Component TypeProtein
Sequence Length313 aa

Thymidylate synthase

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Thymidylate synthase, mapped to UniProt P04818. Sequence length is 313 aa.

Mapped IDP04818
Review nameThymidylate synthase
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

Thymidylate synthase shows approved-linked disease relevance led by colorectal cancer. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
colorectal cancer
8 linked drugs · 8 direct · 8 efficacy
Linked drugCAPECITABINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Linked drugOSI-7904
Approved-linked Approved
gastric cancer
8 linked drugs · 8 direct · 8 efficacy
Linked drugCAPECITABINE
Linked drugDOXIFLURIDINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Approved-linked Approved
neoplasm
8 linked drugs · 8 direct · 8 efficacy
Linked drugCAPECITABINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Linked drugOSI-7904
Approved-linked Approved
cancer
6 linked drugs · 6 direct · 6 efficacy
Linked drugCAPECITABINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Linked drugPEMETREXED
Approved-linked Approved
colorectal adenocarcinoma
6 linked drugs · 6 direct · 6 efficacy
Linked drugCAPECITABINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Linked drugPEMETREXED DISODIUM
Approved-linked Approved
colorectal neoplasm
6 linked drugs · 6 direct · 6 efficacy
Linked drugCAPECITABINE
Linked drugFLOXURIDINE
Linked drugFLUOROURACIL
Linked drugPEMETREXED
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with colorectal cancer because it currently carries approved-linked support. Linked drugs include CAPECITABINE, FLOXURIDINE, FLUOROURACIL, OSI-7904. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseasecolorectal cancer
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

IC50706.0
KI360.0
KD4.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL290277 10.39 Ki 0.041 Preclinical
CHEMBL406575 10.38 Ki 0.042 Preclinical
CHEMBL295708 10.14 Ki 0.072 Preclinical
CHEMBL169896 10.05 Ki 0.09 Clinical
CHEMBL355323 10.05 Ki 0.09 Preclinical
CHEMBL166027 9.91 Ki 0.124 Preclinical
CHEMBL295681 9.65 Ki 0.224 Preclinical
CHEMBL168907 9.36 Ki 0.44 Preclinical
CHEMBL169506 8.96 Ki 1.1 Preclinical
CHEMBL1253498 8.92 IC50 1.2 Preclinical
Distribution

pChEMBL Value Distribution

101
5.0
117
5.5
141
6.0
115
6.5
106
7.0
64
7.5
26
8.0
30
8.5
1
9.0
2
9.5
pChEMBL
Approved Drugs

Approved Drugs

PEMETREXED
CHEMBL225072
Approved 2004
RALTITREXED
CHEMBL225071
Approved 1996
METHOTREXATE
CHEMBL34259
Approved 1953
Assay Landscape

Assay Landscape

367
Total Assays
651
Tested Compounds
3
Assay Types
Binding — 364 assays, 651 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 307 611 6.2
cell-based format 37 29 6.0
assay format 20 11 5.6
ADME — 2 assays, 24 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 2 24 5.8
Functional — 1 assays, 0 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 1 0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine