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Target Snapshot

CHEMBL2094125 Target Snapshot

Phosphodiesterase 3 · PROTEIN FAMILY · Homo sapiens

1,452Compounds
243Assays
11Approved Drugs
1,315.0Activities
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

Phosphodiesterase 3 shows approved-linked disease relevance led by Airway obstruction. 5 more disease programs remain visible in the same review block. 3 linked drugs keep the current disease frame grounded. Protein identity stays anchored to UniProt Q14432. Start with Airway obstruction, then reuse UniProt Q14432 as the stable protein anchor across project notes and exports.

Review focus
Review-ready target frame

Start with Airway obstruction, then reuse UniProt Q14432 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 3 linked drugs
Open source guide
Disease program
Airway obstruction

Phosphodiesterase 3 shows approved-linked disease relevance led by Airway obstruction. 5 more disease programs remain visible in the same review block. 3 linked drugs remain visible in the same block.

Start review with Airway obstruction because it currently carries approved-linked support. Linked drugs include AMINOPHYLLINE, OXTRIPHYLLINE, THEOPHYLLINE. 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 3 linked drugs
Open disease block
Protein anchor
cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A

cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A

Review this target as Phosphodiesterase 3, mapped to UniProt Q14432. ChEMBL maps the protein component as cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A. Sequence length is 1141 aa.

Protein source · UniProt accession via ChEMBL component mapping
UniProt Q14432 Protein 1141 aa
Open protein block
Identity Layer

Cross-source identity

Keep the review anchor, source IDs, and context contract aligned before reusing this target elsewhere.

This review treats Phosphodiesterase 3 as ChEMBL target CHEMBL2094125, mapped to UniProt Q14432. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Phosphodiesterase 3
PROTEIN FAMILY · Homo sapiens
As of 2026-09-13
ChEMBL target ID
CHEMBL2094125
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-13
www.ebi.ac.uk
UniProt accession
Q14432
cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A
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

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UniProt Target Context
UniProt accession via ChEMBL component mapping

Start here when your first question is whether Phosphodiesterase 3 is the right protein anchor across sources, using UniProt Q14432 as the stable mapping.

Jump to Protein Context
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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

Use this block first when you need to confirm why Airway obstruction is currently framed as approved-linked support. It currently carries 3 linked drugs 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 LabelcGMP-inhibited 3',5'-cyclic phosphodiesterase 3A
UniProt AccessionQ14432
Component TypeProtein
Sequence Length1141 aa

cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Phosphodiesterase 3, mapped to UniProt Q14432. ChEMBL maps the protein component as cGMP-inhibited 3',5'-cyclic phosphodiesterase 3A. Sequence length is 1141 aa.

Mapped IDQ14432
Review namePhosphodiesterase 3
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

Phosphodiesterase 3 shows approved-linked disease relevance led by Airway obstruction. 5 more disease programs remain visible in the same review block.

Approved-linked Approved
Airway obstruction
3 linked drugs · 3 direct · 3 efficacy
Linked drugAMINOPHYLLINE
Linked drugOXTRIPHYLLINE
Linked drugTHEOPHYLLINE
Approved-linked Approved
asthma
3 linked drugs · 3 direct · 3 efficacy
Linked drugAMINOPHYLLINE
Linked drugENSIFENTRINE
Linked drugTHEOPHYLLINE
Approved-linked Approved
cardiovascular disease
2 linked drugs · 2 direct · 2 efficacy
Linked drugENOXIMONE
Linked drugLEVOSIMENDAN
Approved-linked Approved
chronic obstructive pulmonary disease
2 linked drugs · 2 direct · 2 efficacy
Linked drugENSIFENTRINE
Linked drugTHEOPHYLLINE
Approved-linked Approved
chronic bronchitis
1 linked drug · 1 direct · 1 efficacy
Linked drugTHEOPHYLLINE
Approved-linked Approved
essential thrombocythemia
1 linked drug · 1 direct · 1 efficacy
Linked drugANAGRELIDE HYDROCHLORIDE
Source · ChEMBL drug mechanism + indication proxy
Review Cue

How to read disease relevance

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

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

Clinical Phase Distribution

11
Approved
2
Phase III
21
Phase II
5
Phase I
Assay Mix

Activity Type Distribution

IC501,297.0
KI18.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL327234 10.52 IC50 0.03 Preclinical
CHEMBL88787 10.1 IC50 0.08 Preclinical
CHEMBL90877 9.7 IC50 0.2 Preclinical
CHEMBL329173 9.7 IC50 0.2 Preclinical
CHEMBL88108 9.52 IC50 0.3 Preclinical
CHEMBL90647 9.52 IC50 0.3 Preclinical
CHEMBL328543 9.52 IC50 0.3 Preclinical
CHEMBL91503 9.52 IC50 0.3 Preclinical
CHEMBL431799 9.4 IC50 0.4 Preclinical
CHEMBL432057 9.4 IC50 0.4 Preclinical
Distribution

pChEMBL Value Distribution

138
5.0
107
5.5
88
6.0
74
6.5
79
7.0
54
7.5
57
8.0
31
8.5
29
9.0
6
9.5
pChEMBL
Approved Drugs

Approved Drugs

VARDENAFIL
CHEMBL1520
Approved 2003
CILOSTAZOL
CHEMBL799
Approved 1999
ANAGRELIDE
CHEMBL760
Approved 1997
MILRINONE
CHEMBL189
Approved 1987
Assay Landscape

Assay Landscape

243
Total Assays
800
Tested Compounds
3
Assay Types
Binding — 233 assays, 800 compounds
BAO Format Assays Compounds Avg pChEMBL
protein format 161 394 5.3
assay format 62 250 6.8
organism-based format 4 100 6.8
tissue-based format 3 39 6.0
cell-free format 2 15 6.9
cell-based format 1 2 5.6
Functional — 8 assays, 63 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 8 63 6.9
ADME — 2 assays, 1 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 1 0
protein format 1 1 6.0

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine