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Target Snapshot

CHEMBL221 Target Snapshot

Prostaglandin G/H synthase 1 · SINGLE PROTEIN · Homo sapiens

5,554Compounds
752Assays
48Approved Drugs
5,244.0Activities
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

Prostaglandin G/H synthase 1 shows approved-linked disease relevance led by Fever. 5 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 P23219. Start with Fever, then reuse UniProt P23219 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with Fever, then reuse UniProt P23219 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
Fever

Prostaglandin G/H synthase 1 shows approved-linked disease relevance led by Fever. 5 more disease programs remain visible in the same review block. 1 linked drug remains visible in the same block.

Start review with Fever because it currently carries approved-linked support. Linked drugs include ANTIPYRINE. 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 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 Prostaglandin G/H synthase 1 as ChEMBL target CHEMBL221, mapped to UniProt P23219. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Prostaglandin G/H synthase 1
SINGLE PROTEIN · Homo sapiens
As of 2026-09-14
ChEMBL target ID
CHEMBL221
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P23219
Prostaglandin G/H synthase 1
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 Prostaglandin G/H synthase 1 is the right protein anchor across sources, using UniProt P23219 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 Fever is currently framed as approved-linked support. It currently carries 1 linked drug in the same disease frame.

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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 LabelProstaglandin G/H synthase 1
UniProt AccessionP23219
Component TypeProtein
Sequence Length599 aa

Prostaglandin G/H synthase 1

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Prostaglandin G/H synthase 1, mapped to UniProt P23219. Sequence length is 599 aa.

Mapped IDP23219
Review nameProstaglandin G/H synthase 1
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

Prostaglandin G/H synthase 1 shows approved-linked disease relevance led by Fever. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
Fever
1 linked drug · 1 direct · 1 efficacy
Linked drugANTIPYRINE
Approved-linked Approved
pain
1 linked drug · 1 direct · 1 efficacy
Linked drugANTIPYRINE
Approved-linked Approved
rheumatic disease
1 linked drug · 1 direct · 1 efficacy
Linked drugALCLOFENAC
Late clinical Phase III
Dysmenorrhea
1 linked drug · 1 direct · 1 efficacy
Linked drugANTIPYRINE
Clinical signal Phase II
asthma
1 linked drug · 1 direct · 1 efficacy
Linked drugANTIPYRINE
Clinical signal Phase II
infectious otitis media
1 linked drug · 1 direct · 1 efficacy
Linked drugANTIPYRINE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

Start review with Fever because it currently carries approved-linked support. Linked drugs include ANTIPYRINE. This disease block keeps the Open Targets-ready contract explicit while current evidence comes from ChEMBL mechanism and indication mappings.

Lead diseaseFever
Strongest levelApproved-linked
Block modeOpen Targets-ready proxy
Clinical Profile

Clinical Phase Distribution

48
Approved
7
Phase III
22
Phase II
2
Phase I
1
Phase 0.5
Assay Mix

Activity Type Distribution

IC504,397.0
KI840.0
EC501.0
KD6.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL6 9.85 IC50 0.14 Approved
CHEMBL143776 9.0 IC50 1.0 Preclinical
CHEMBL5206077 9.0 IC50 1.0 Preclinical
CHEMBL1945285 8.91 IC50 1.23 Preclinical
CHEMBL259972 8.85 IC50 1.4 Approved
CHEMBL75435 8.72 IC50 1.9 Approved
CHEMBL1232083 8.7 IC50 2.0 Preclinical
CHEMBL571 8.7 IC50 2.0 Approved
CHEMBL1034 8.52 IC50 3.0 Approved
CHEMBL139 8.52 IC50 3.0 Approved
Distribution

pChEMBL Value Distribution

417
5.0
284
5.5
224
6.0
137
6.5
89
7.0
35
7.5
34
8.0
12
8.5
2
9.0
1
9.5
pChEMBL
Approved Drugs

Approved Drugs

VORTIOXETINE
CHEMBL2104993
Approved 2013
LUMIRACOXIB
CHEMBL404108
Approved 2005
CELECOXIB
CHEMBL118
Approved 1998
BROMFENAC
CHEMBL1077
Approved 1997
MOFEZOLAC
CHEMBL259972
Approved 1994
DEXKETOPROFEN
CHEMBL75435
Approved 1994
DEXIBUPROFEN
CHEMBL175
Approved 1994
OXAPROZIN
CHEMBL1071
Approved 1992
ETODOLAC
CHEMBL622
Approved 1991
KETOROLAC
CHEMBL469
Approved 1989
DICLOFENAC
CHEMBL139
Approved 1988
DICLOFENAC SODIUM
CHEMBL1034
Approved 1988
CARPROFEN
CHEMBL1316
Approved 1987
FLURBIPROFEN
CHEMBL563
Approved 1986
KETOPROFEN
CHEMBL571
Approved 1986
SUPROFEN
CHEMBL956
Approved 1985
MECLOFENAMIC ACID
CHEMBL509
Approved 1980
FENOPROFEN
CHEMBL1297
Approved 1976
NAPROXEN
CHEMBL154
Approved 1976
TOLMETIN
CHEMBL1020
Approved 1976
IBUPROFEN
CHEMBL521
Approved 1974
MEFENAMIC ACID
CHEMBL686
Approved 1967
THIOGUANINE
CHEMBL727
Approved 1966
INDOMETHACIN
CHEMBL6
Approved 1965
ASPIRIN
CHEMBL25
Approved 1950
3,3',4',5-TETRACHLOROSALICYLANILIDE
CHEMBL291338
Assay Landscape

Assay Landscape

753
Total Assays
1,750
Tested Compounds
3
Assay Types
Binding — 694 assays, 1,750 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 479 1,126 5.3
tissue-based format 79 280 5.4
assay format 60 100 5.6
cell-based format 51 134 5.8
cell-free format 18 58 5.7
microsome format 5 51 5.6
organism-based format 2 1 4.6
ADME — 33 assays, 124 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 25 114 5.1
cell-based format 3 10 5.7
tissue-based format 3 0
assay format 1 0
cell-free format 1 0
Functional — 26 assays, 62 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 21 33 5.4
tissue-based format 3 14 5.0
cell-based format 2 15 5.1

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine