Protein / target

Guanylate cyclase soluble subunit beta-2

GUCY1B2O75343Homo sapiensSwiss-Prot
30
Clinical trials
2
Drugs targeting

Protein at a glance

Biological role

Guanylate cyclase activity

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

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Subcellular location

Cytoplasm
Domains and Gene Ontology detail (10)

Domains & features

H-NOXGuanylate cyclase

Gene Ontology

  • Ccytosol
  • Cguanylate cyclase complex, soluble
  • FGTP binding
  • Fguanylate cyclase activity
  • Fheme binding
  • Fmetal ion binding
  • Pintracellular signal transduction
  • Presponse to oxygen levels

617 aa · 70 kDa

Biological roles

Reactome v97

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

Muscle contractionReactome
View supporting evidence

Muscle contraction

  • ·Smooth Muscle Contraction
View underlying pathways (2)

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

Drugs targeting this protein

2

Whether each drug engages this protein directly or through a complex, and how many other targets are recorded for it. Direct binders with few recorded targets are listed first.

Nitric Oxide
Activator

Soluble guanylate cyclase activator

Acts on a complex — shared with GUCY1B1, GUCY1A2, GUCY1A1 · 1 of 4 recorded protein targets

riociguat
Positive allosteric modulator

Soluble guanylate cyclase positive allosteric modulator

Acts on a complex — shared with GUCY1B1, GUCY1A2, GUCY1A1 · 1 of 4 recorded protein targets

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

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.

Show remaining trials (24)

COMPLETED · via Nitric Oxide · NCT00987207

ClinicalTrials.gov via the drug-target graph.

What's happening now

33

Recent activity around this target, drawn from one canonical event stream. Every item is reached through 2 drugs that target this protein, so each event is news about that drug rather than about the protein directly.

  1. CHMP positive opinion2026-07-20

    CHMP positive opinion: Riociguat Accord (EMA)

    ema · regulatory · ema · via riociguat

  2. New publication2025-04-08
    Understanding chronic inflammation: couplings between cytokines, ROS, NO, Ca<sub>i</sub> <sup>2+</sup>, HIF-1α, Nrf2 and autophagy.

    Frontiers in immunology · 2025 · 37 citations · Europe PMC · via Nitric Oxide

  3. New publication2025-01-01
    Neurological Manifestations Following Traumatic Brain Injury: Role of Behavioral, Neuroinflammation, Excitotoxicity, Nrf-2 and Nitric Oxide.

    CNS & neurological disorders drug targets · 2025 · 5 citations · Europe PMC · via Nitric Oxide

  4. New publication2024-12-11
    Systemic and Cardiac Microvascular Dysfunction in Hypertension.

    International journal of molecular sciences · 2024 · 34 citations · Europe PMC · via Nitric Oxide

  5. New publication2024-08-21
    The Unexpected Role of the Endothelial Nitric Oxide Synthase at the Neurovascular Unit: Beyond the Regulation of Cerebral Blood Flow.

    International journal of molecular sciences · 2024 · 12 citations · Europe PMC · via Nitric Oxide

  6. New publication2024-07-25
    Ca<sup>2+</sup>-dependent phosphodiesterase 1 regulates the plasticity of striatal spiny projection neuron glutamatergic synapses.

    Cell reports · 2024 · 6 citations · Europe PMC · via Nitric Oxide

  7. New publication2024-03-14
    Several lines of antioxidant defense against oxidative stress: antioxidant enzymes, nanomaterials with multiple enzyme-mimicking activities, and low-molecular-weight antioxidants.

    Archives of toxicology · 2024 · 563 citations · Europe PMC · via Nitric Oxide

  8. New publication2024-02-20
    A multidisciplinary study on Clinostomum infections in Nile tilapia: micro-morphology, oxidative stress, immunology, and histopathology.

    BMC veterinary research · 2024 · 12 citations · Europe PMC · via Nitric Oxide

  9. New publication2023-09-19
    Neuronal Nitric Oxide Synthase and Post-Translational Modifications in the Development of Central Nervous System Diseases: Implications and Regulation.

    Molecules (Basel, Switzerland) · 2023 · 12 citations · Europe PMC · via Nitric Oxide

  10. New publication2023-09-16
    Modulation of the nitric oxide/cGMP pathway in cardiac contraction and relaxation: Potential role in heart failure treatment.

    Pharmacological research · 2023 · 24 citations · Europe PMC · via Nitric Oxide

  11. New publication2020-02-22
    Vitamin D and Endothelial Function.

    Nutrients · 2020 · 216 citations · Europe PMC · via Nitric Oxide

  12. New publication2020-02-04
    Nitric oxide orchestrates metabolic rewiring in M1 macrophages by targeting aconitase 2 and pyruvate dehydrogenase.

    Nature communications · 2020 · 369 citations · Europe PMC · via Nitric Oxide

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.