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Protein / target

Atrial natriuretic peptide receptor 1

Encoded byNPR1P16066Homo sapiensSwiss-Prot
Clinically validated
Therapeutic maturity
2
Approved medicines
Open Targets target-level
View by indication →
30
Clinical trials
Small-molecule tractable
Druggability
Structure with Ligand

Protein at a glance

Biological role

G protein-coupled peptide receptor

Strongest disease association

Hypertension

Via encoding gene NPR1 · Genetic evidence · score 0.61

Therapeutic position

Established drug target

Derived from structured UniProt, Open Targets and literature data on this page.

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Function overview

Receptor for the atrial natriuretic peptide NPPA/ANP and the brain natriuretic peptide NPPB/BNP which are potent vasoactive hormones playing a key role in cardiovascular homeostasis.

View complete UniProt function annotation

Receptor for the atrial natriuretic peptide NPPA/ANP and the brain natriuretic peptide NPPB/BNP which are potent vasoactive hormones playing a key role in cardiovascular homeostasis (PubMed:39543315). Plays an essential role in the regulation of endothelial cell senescence and vascular aging (PubMed:36016499). Upon activation by ANP or BNP, stimulates the production of cyclic guanosine monophosphate (cGMP) that promotes vascular tone and volume homeostasis by activation of protein kinase cGMP-dependent 1/PRKG1 and subsequently PRKAA1, thereby controlling blood pressure and maintaining cardiovascular homeostasis (PubMed:36016499)

Subcellular location

Membrane
Domains and Gene Ontology detail (29)

Domains & features

Protein kinaseGuanylate cyclase

Gene Ontology

  • Cendoplasmic reticulum membrane
  • Cnuclear membrane
  • Cplasma membrane
  • Creceptor complex
  • FATP binding
  • FG protein-coupled peptide receptor activity
  • FGTP binding
  • Fguanylate cyclase activity
  • Fhormone binding
  • Fnatriuretic peptide receptor activity
  • Fpeptide hormone binding
  • Fpeptide receptor activity

1061 aa · 119 kDa

Biological roles

What this protein does, drawn together from its UniProt function, Gene Ontology terms and Reactome pathways.

Kinase signallingUniProt · GO
View supporting evidence

Kinase signalling

  • ·Receptor for the atrial natriuretic peptide NPPA/ANP and the brain natriuretic peptide N…
  • ·protein kinase activity

Concepts derived from UniProt GO Reactome — each badge above shows which sources supported that role.

Approved medicines with mapped indications

1 medicine · 1 area

Approved therapies targeting this protein, grouped by what they are approved to treat — the disease-first view of the medicines below. Relationships come from the canonical approved-indication graph (ChEMBL phase-4), the same source as the drug cards.

Cardiovascular Diseases1 medicine

2 medicines meet Open Targets' target-level approved-medicine definition; the 1 shown here are those on this page with a canonical approved disease indication in the graph. Approved indications from ChEMBL (phase-4), via the canonical drug→disease graph.

Drugs targeting this protein

1

How approved and investigational drugs engage this protein — mechanism and action type, direct vs complex targeting, and how broadly each acts across other targets. A drug-first view (the section above groups the approved ones disease-first); direct binders with few recorded targets are listed first.

nesiritide
Narrow target profileApprovedAgonist

Atrial natriuretic peptide receptor A agonist

Indicated for Cardiovascular Diseases

Direct interaction with this protein · Only this protein recorded as a target

ChEMBL mechanism, action type, target identity and approved indications. Open Targets clinical status.

Translational evidence

Open Targets 26

Why this target matters therapeutically, strongest evidence first. Disease associations are gene-level (via the gene that encodes this protein) and open into the full confidence synthesis; the development universe, tractability and safety annotations are target-level, from Open Targets.

Strongest disease associations · via encoding gene NPR1

Gene-level evidence surfaced through the gene NPR1 that encodes this protein — not a direct protein–disease relationship. Ranked by Forefront's causal-directness weighting, so genetically- and clinically-evidenced diseases lead over ones that merely share the literature.

Cardiovascular Diseases
0.76Well supported

Genetic evidence dominant · Open Targets 0.46

Heart Failure
0.71Moderately supported

Clinical evidence dominant · Open Targets 0.57

Hypertension
0.65Moderately supported

Genetic evidence dominant · Open Targets 0.47

Myocardial Ischemia
0.34Limited support

Clinical evidence dominant · Open Targets 0.28

Heart Diseases
0.33Limited support

Clinical evidence dominant · Open Targets 0.26

View evidence synthesis (5)
Cardiovascular DiseasesWell supported
0.76
agreement 0.660.87
Genetic54%Clinical45%Literature1%

Open Targets aggregate 0.46 · 3 independent evidence families

Heart FailureModerately supported
0.71
agreement 0.560.86
Clinical96%Literature4%

Open Targets aggregate 0.57 · 2 independent evidence families

HypertensionModerately supported
0.65
agreement 0.550.76
Genetic83%Clinical12%Literature5%

Open Targets aggregate 0.47 · 3 independent evidence families

Myocardial IschemiaLimited support
0.34
agreement 0.190.50
Clinical99%Literature1%

Open Targets aggregate 0.28 · 2 independent evidence families

Heart DiseasesLimited support
0.33
agreement 0.170.48
Clinical97%Literature3%

Open Targets aggregate 0.26 · 2 independent evidence families

This ranking differs from Open Targets' own: re-weighting moves genetically-evidenced diseases above more heavily co-mentioned ones. The evidence agreement range shows how closely the independent evidence families agree — it is not a statistical confidence interval, and nothing here is fitted to outcome data. Derived from Open Targets evidence types under Forefront weighting; the per-type scores above show the calculation.

Show all associations
Heart Failure0.57
Hypertension0.47
Cardiovascular Diseases0.46
Myocardial Ischemia0.28
Heart Diseases0.26

Drug development

3 compounds recorded · 2 approved · 1 in clinical development

Open Targets' development universe — every compound recorded against the target at any stage, not all approved medicines. Distinct from the 1 drug that targets this protein in Forefront's canonical graph (1 with a mapped approved indication, shown above): these count different sets and are not a subset relation.

View all recorded compounds (3)
PL-3994Phase 2
CARPERITIDEApproval
NESIRITIDEApproval

Open Targets known-drugs universe. Drug name and highest clinical stage only — the disease relationship is NOT read from this slice (it carries trial-context noise); approved indications come from the canonical graph above.

Tractability

Small moleculesEmerging

Feasibility evidence (structure with ligand and high-quality ligand) — no clinical-stage drug of this modality recorded.

AntibodiesEmerging

Feasibility evidence (go cc high conf and uniprot sigp or tmhmm) — no clinical-stage drug of this modality recorded.

Protein degradersEmerging

Feasibility evidence (database ubiquitination and small molecule binder) — no clinical-stage drug of this modality recorded.

Other modalitiesStrong

Approved Drug support this modality.

View underlying tractability evidence (9)
SM · Structure with LigandSM · High-Quality LigandSM · Druggable FamilyAB · GO CC high confAB · UniProt SigP or TMHMMAB · Human Protein Atlas locPR · Database UbiquitinationPR · Small Molecule BinderOC · Approved Drug

Raw Open Targets tractability assessment buckets, by modality.

Clinical trials

30

Trials of drugs that target this protein — reached indirectly through those drugs, so a trial listed here studies the drug, not the protein. Ranked by active status, then clinical phase and recency, and spread across the targeting drugs.

View all trials (26)

TERMINATED · via nesiritide · NCT00453453

TERMINATED · via nesiritide · NCT00270829

TERMINATED · via nesiritide · NCT00083772

TERMINATED · via nesiritide · NCT01514357

ClinicalTrials.gov via the drug-target graph.

What's happening now

3

Recent therapeutic activity around this target — regulatory actions, clinical trials and safety signals for a drug that targets this protein, plus publications where such a drug is a genuine subject. Every item is reached indirectly through the drug, not the protein itself; incidental mentions (a paper that merely measures a drug) and press items are excluded.

  1. New publication2011-05-16
    Modulation of novel cardiorenal and inflammatory biomarkers by intravenous nitroglycerin and nesiritide in acute decompensated heart failure: an exploratory study.

    Circulation. Heart failure · 2011 · 19 citations · Europe PMC · via nesiritide

  2. New publication2010-12-03
    Renal function and neurohormonal changes following intravenous infusions of nitroglycerin versus nesiritide in patients with acute decompensated heart failure.

    Journal of cardiac failure · 2011 · 21 citations · Europe PMC · via nesiritide

  3. New publication1999-07-01
    Sustained hemodynamic effects of an infusion of nesiritide (human b-type natriuretic peptide) in heart failure: a randomized, double-blind, placebo-controlled clinical trial. Natrecor Study Group.

    Journal of the American College of Cardiology · 1999 · 203 citations · Europe PMC · via nesiritide

Objective event titles are shown unmodified; the event kind and significance line are derived from structured fields. Forefront AttentionEvent stream aggregating Europe PMC Regulatory filings ClinicalTrials.gov.