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Target Snapshot

CHEMBL5099 Target Snapshot

3-oxo-5-alpha-steroid 4-dehydrogenase 2 · SINGLE PROTEIN · Rattus norvegicus

49Compounds
13Assays
1Approved Drugs
32.0Activities
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 P31214. Use UniProt P31214 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P31214 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 3-oxo-5-alpha-steroid 4-dehydrogenase 2 as ChEMBL target CHEMBL5099, mapped to UniProt P31214. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
3-oxo-5-alpha-steroid 4-dehydrogenase 2
SINGLE PROTEIN · Rattus norvegicus
As of 2026-09-14
ChEMBL target ID
CHEMBL5099
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P31214
3-oxo-5-alpha-steroid 4-dehydrogenase 2
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 3-oxo-5-alpha-steroid 4-dehydrogenase 2 is the right protein anchor across sources, using UniProt P31214 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

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 Label3-oxo-5-alpha-steroid 4-dehydrogenase 2
UniProt AccessionP31214
Component TypeProtein
Sequence Length254 aa

3-oxo-5-alpha-steroid 4-dehydrogenase 2

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as 3-oxo-5-alpha-steroid 4-dehydrogenase 2, mapped to UniProt P31214. Sequence length is 254 aa.

Mapped IDP31214
Review name3-oxo-5-alpha-steroid 4-dehydrogenase 2
OrganismRattus norvegicus
Clinical Profile

Clinical Phase Distribution

1
Approved
1
Phase II
Assay Mix

Activity Type Distribution

IC5028.0
KI4.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL314953 9.92 Ki 0.12 Preclinical
CHEMBL277224 9.77 Ki 0.17 Preclinical
CHEMBL710 9.55 IC50 0.28 Approved
CHEMBL327702 8.96 Ki 1.1 Preclinical
CHEMBL5190333 8.4 IC50 4.0 Preclinical
CHEMBL4540042 7.82 IC50 15.0 Preclinical
CHEMBL4569322 7.47 IC50 34.0 Preclinical
CHEMBL115438 7.42 IC50 38.0 Preclinical
CHEMBL424066 7.1 IC50 80.0 Preclinical
CHEMBL1778071 7.06 IC50 87.98 Preclinical
Distribution

pChEMBL Value Distribution

2
5.0
4
5.5
5
6.0
5
6.5
4
7.0
3
7.5
1
8.0
1
8.5
0
9.0
3
9.5
pChEMBL
Approved Drugs

Approved Drugs

FINASTERIDE
CHEMBL710
Approved 1992
Assay Landscape

Assay Landscape

13
Total Assays
22
Tested Compounds
2
Assay Types
Binding — 10 assays, 22 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 5 6 8.2
assay format 3 3 7.6
microsome format 1 2 7.7
tissue-based format 1 11 6.3
Functional — 3 assays, 5 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 3 5 6.4

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine