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Target Snapshot

CHEMBL1926 Target Snapshot

Dihydrofolate reductase · SINGLE PROTEIN · Pneumocystis carinii

682Compounds
101Assays
9Approved Drugs
1,177.0Activities
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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

Dihydrofolate reductase shows late clinical disease relevance led by pneumocystosis. 3 more disease programs remain visible in the same review block. 1 linked drug keeps the current disease frame grounded. Protein identity stays anchored to UniProt P16184. Start with pneumocystosis, then reuse UniProt P16184 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with pneumocystosis, then reuse UniProt P16184 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 1 linked drug
Open source guide
Disease program
pneumocystosis

Dihydrofolate reductase shows late clinical disease relevance led by pneumocystosis. 3 more disease programs remain visible in the same review block. 1 linked drug remains visible in the same block.

Start review with pneumocystosis because it currently carries late clinical support. Linked drugs include TRIMETREXATE GLUCURONATE. 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
Late clinical 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 Dihydrofolate reductase as ChEMBL target CHEMBL1926, mapped to UniProt P16184. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Dihydrofolate reductase
SINGLE PROTEIN · Pneumocystis carinii
As of 2026-09-14
ChEMBL target ID
CHEMBL1926
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P16184
Dihydrofolate reductase
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 Dihydrofolate reductase is the right protein anchor across sources, using UniProt P16184 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 pneumocystosis is currently framed as late clinical support. It currently carries 1 linked drug 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 LabelDihydrofolate reductase
UniProt AccessionP16184
Component TypeProtein
Sequence Length206 aa

Dihydrofolate reductase

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Dihydrofolate reductase, mapped to UniProt P16184. Sequence length is 206 aa.

Mapped IDP16184
Review nameDihydrofolate reductase
OrganismPneumocystis carinii
Disease Relevance

Disease Relevance & Evidence Level

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

Late clinical Open Targets-ready proxy

Dihydrofolate reductase shows late clinical disease relevance led by pneumocystosis. 3 more disease programs remain visible in the same review block.

Late clinical Phase III
pneumocystosis
1 linked drug · 1 direct · 1 efficacy
Linked drugTRIMETREXATE GLUCURONATE
Clinical signal Phase II
colorectal cancer
1 linked drug · 1 direct · 1 efficacy
Linked drugTRIMETREXATE GLUCURONATE
Clinical signal Phase II
pancreatic carcinoma
1 linked drug · 1 direct · 1 efficacy
Linked drugTRIMETREXATE GLUCURONATE
Clinical signal Phase II
sarcoma
1 linked drug · 1 direct · 1 efficacy
Linked drugTRIMETREXATE GLUCURONATE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with pneumocystosis because it currently carries late clinical support. Linked drugs include TRIMETREXATE GLUCURONATE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseasepneumocystosis
Strongest levelLate clinical
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

9
Approved
1
Phase III
7
Phase II
Assay Mix

Activity Type Distribution

IC501,120.0
KI57.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL190650 10.01 IC50 0.097 Preclinical
CHEMBL7492 9.85 Ki 0.143 Clinical
CHEMBL190486 9.77 IC50 0.17 Preclinical
CHEMBL145979 9.59 Ki 0.26 Preclinical
CHEMBL189952 9.37 IC50 0.43 Preclinical
CHEMBL190199 9.29 IC50 0.51 Preclinical
CHEMBL370239 9.19 IC50 0.65 Preclinical
CHEMBL119 9.15 Ki 0.71 Approved
CHEMBL300419 9.0 IC50 1.0 Preclinical
CHEMBL34259 9.0 IC50 1.0 Approved
Distribution

pChEMBL Value Distribution

145
5.0
126
5.5
135
6.0
122
6.5
196
7.0
92
7.5
28
8.0
19
8.5
11
9.0
3
9.5
pChEMBL
Approved Drugs

Approved Drugs

TRIMETREXATE
CHEMBL119
Approved 1993
TRIMETHOPRIM
CHEMBL22
Approved 1973
SULFAMETHOXAZOLE
CHEMBL443
Approved 1973
METHOTREXATE
CHEMBL34259
Approved 1953
PYRIMETHAMINE
CHEMBL36
Approved 1953
Assay Landscape

Assay Landscape

101
Total Assays
625
Tested Compounds
2
Assay Types
Binding — 100 assays, 625 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 98 624 6.2
assay format 2 1 8.9
Functional — 1 assays, 1 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 1 1 7.5

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine