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Target Snapshot

CHEMBL3421 Target Snapshot

Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A · SINGLE PROTEIN · Homo sapiens

769Compounds
107Assays
3Approved Drugs
2,209.0Activities
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Broader Open DB context

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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 P54750. Use UniProt P54750 as the stable identity anchor, then attach disease evidence before program review.

Review focus
Protein anchor ready

Use UniProt P54750 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
Protein anchor
Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A

Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A

Review this target as Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A, mapped to UniProt P54750. Sequence length is 535 aa.

Protein source · UniProt accession via ChEMBL component mapping
UniProt P54750 Protein 535 aa
Open protein block
Identity Layer

Cross-source identity

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This review treats Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A as ChEMBL target CHEMBL3421, mapped to UniProt P54750. Disease framing currently uses the Open Targets-ready proxy contract.

Review anchor
Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A
SINGLE PROTEIN · Homo sapiens
As of 2026-09-14
ChEMBL target ID
CHEMBL3421
Primary anchor for compounds, assays, approvals, and exports
ChEMBL 36 via Core Engine As of 2026-09-14
www.ebi.ac.uk
UniProt accession
P54750
Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A
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

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UniProt Target Context
UniProt accession via ChEMBL component mapping

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Disease Relevance & Evidence Level
ChEMBL drug mechanism + indication proxy

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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 LabelDual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A
UniProt AccessionP54750
Component TypeProtein
Sequence Length535 aa

Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A

Source · UniProt accession via ChEMBL component mapping
Review Cue

How to read this target

Review this target as Dual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A, mapped to UniProt P54750. Sequence length is 535 aa.

Mapped IDP54750
Review nameDual specificity calcium/calmodulin-dependent 3',5'-cyclic nucleotide phosphodiesterase 1A
OrganismHomo sapiens
Clinical Profile

Clinical Phase Distribution

3
Approved
3
Phase II
1
Phase I
Assay Mix

Activity Type Distribution

IC502,177.0
KI24.0
KD8.0
Lead Set

Top Inhibitors (by pChEMBL)

ChEMBL IDpChEMBLTypeValue (nM)Phase
CHEMBL3678507 10.0 Ki 0.1 Preclinical
CHEMBL5843142 9.85 IC50 0.14 Preclinical
CHEMBL5872664 9.85 IC50 0.14 Preclinical
CHEMBL5959210 9.85 IC50 0.14 Preclinical
CHEMBL3678504 9.7 Ki 0.2 Preclinical
CHEMBL6042932 9.67 IC50 0.214 Preclinical
CHEMBL5874788 9.59 IC50 0.26 Preclinical
CHEMBL5912826 9.59 IC50 0.26 Preclinical
CHEMBL5977186 9.59 IC50 0.26 Preclinical
CHEMBL3678506 9.52 Ki 0.3 Preclinical
Distribution

pChEMBL Value Distribution

18
5.0
74
5.5
236
6.0
311
6.5
424
7.0
442
7.5
316
8.0
151
8.5
82
9.0
20
9.5
pChEMBL
Approved Drugs

Approved Drugs

SILDENAFIL
CHEMBL192
Approved 1998
Assay Landscape

Assay Landscape

107
Total Assays
649
Tested Compounds
3
Assay Types
Binding — 102 assays, 649 compounds
BAO Format Assays Compounds Avg pChEMBL
single protein format 76 627 7.4
cell-based format 21 13 8.3
assay format 5 9 8.1
ADME — 3 assays, 2 compounds
BAO Format Assays Compounds Avg pChEMBL
cell-based format 2 2 5.6
single protein format 1 0
Functional — 2 assays, 2 compounds
BAO Format Assays Compounds Avg pChEMBL
assay format 2 2 6.9

Confidence Score Distribution

Source · ChEMBL 36 via Core Engine