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Target Snapshot

CHEMBL3559 Target Snapshot

Steryl-sulfatase · SINGLE PROTEIN · Homo sapiens

890Compounds
331Assays
4Approved Drugs
1,026.0Activities
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 2026-09-13

Steryl-sulfatase shows clinical signal disease relevance led by breast cancer. 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 P08842. Start with breast cancer, then reuse UniProt P08842 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with breast cancer, then reuse UniProt P08842 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 1 linked drug
Open source guide
Disease program
breast cancer

Steryl-sulfatase shows clinical signal disease relevance led by breast cancer. 3 more disease programs remain visible in the same review block. 1 linked drug remains visible in the same block.

Start review with breast cancer because it currently carries clinical signal support. Linked drugs include IROSUSTAT. 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
Clinical signal 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 Steryl-sulfatase as ChEMBL target CHEMBL3559, mapped to UniProt P08842. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Steryl-sulfatase
SINGLE PROTEIN · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL3559
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
P08842
Steryl-sulfatase
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 Steryl-sulfatase is the right protein anchor across sources, using UniProt P08842 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 breast cancer is currently framed as clinical signal support. It currently carries 1 linked drug in the same disease frame.

Jump to Disease Context
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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 LabelSteryl-sulfatase
UniProt AccessionP08842
Component TypeProtein
Sequence Length583 aa

Steryl-sulfatase

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Steryl-sulfatase, mapped to UniProt P08842. Sequence length is 583 aa.

Mapped IDP08842
Review nameSteryl-sulfatase
OrganismHomo sapiens
Disease Relevance

Disease Relevance & Evidence Level

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

Clinical signal Open Targets-ready proxy

Steryl-sulfatase shows clinical signal disease relevance led by breast cancer. 3 more disease programs remain visible in the same review block.

Clinical signal Phase II
breast cancer
1 linked drug · 1 direct · 1 efficacy
Linked drugIROSUSTAT
Clinical signal Phase II
breast neoplasm
1 linked drug · 1 direct · 1 efficacy
Linked drugIROSUSTAT
Clinical signal Phase II
endometrial cancer
1 linked drug · 1 direct · 1 efficacy
Linked drugIROSUSTAT
Clinical signal Phase I
prostate cancer
1 linked drug · 1 direct · 1 efficacy
Linked drugIROSUSTAT
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

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

Lead diseasebreast cancer
Strongest levelClinical signal
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

4
Approved
1
Phase II
Assay Mix

Activity Type Distribution

IC50952.0
KI74.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL2011408 11.0 IC50 0.01 Preclinical
CHEMBL3805209 10.62 IC50 0.024 Preclinical
CHEMBL3622029 10.46 IC50 0.035 Preclinical
CHEMBL3806018 10.4 IC50 0.04 Preclinical
CHEMBL4643348 10.4 IC50 0.04 Preclinical
CHEMBL137392 10.33 IC50 0.047 Preclinical
CHEMBL122708 10.19 IC50 0.065 Preclinical
CHEMBL5202760 10.19 IC50 0.065 Preclinical
CHEMBL137692 10.05 IC50 0.089 Preclinical
CHEMBL2011422 10.0 IC50 0.1 Preclinical
Distribution

pChEMBL Value Distribution

95
5.0
60
5.5
107
6.0
92
6.5
107
7.0
110
7.5
45
8.0
37
8.5
48
9.0
10
9.5
pChEMBL
Assay Landscape

Assay Landscape

331
Total Assays
620
Tested Compounds
2
Assay Types
Binding — 330 assays, 620 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 138 211 7.1
single protein format 129 229 6.4
assay format 31 128 6.5
microsome format 28 47 7.3
subcellular format 2 4 6.6
tissue-based format 2 1 7.4
Functional — 1 assays, 6 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 1 6 6.6

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine