1. Signaling Pathways
  2. GPCR/G Protein
  3. Guanylate Cyclase

Guanylate Cyclase

Guanylatecyclase (guanylylcyclase, GC) is a lyase enzyme. Guanylylcyclase is often part of the G protein signaling cascade that is activated by low intracellular calcium levels and inhibited by high intracellular calcium levels. In response to calcium levels, guanylylcyclase synthesizes cGMP from GTP. cGMP keeps cGMP-gated channels open, allowing for the entry of calcium into the cell. The guanylylcyclase activity is modulated by the calcium-binding guanylylcyclase activating proteins (GCAP1 and GCAP2). A key mechanism by which Ca2+ modulates phototransduction in rods involves the synthesis of cGMP by guanylylcyclase (GC), regulated by a pair of Ca2+-binding GuanylylCyclase Activating Proteins (GCAP1 and GCAP2).

The second messenger cyclic guanosine monophosphate (cGMP) is generated by the heterodimeric α/β-heme protein soluble guanylatecyclase (sGC) upon activation by its endogenous ligand nitric oxide (NO). NO binds to the reduced prosthetic heme group bound to the β subunit. cGMP is a key mediator of the cardiovascular system and its effects lead to vasodilation, inhibition of smooth muscle proliferation, blockade of leukocyte infiltration and inhibition of platelet aggregation. Impairment of the cytoprotective NO/sGC/cGMP-signalling pathway is associated with the development of serious cardiovascular diseases such as hypertension or heart failure.

Guanylate Cyclase Related Products (19):

Cat. No. Product Name Effect Purity
  • HY-14927
    Lificiguat Activator 99.83%
    Lificiguat binds to the β subunit of soluble guanylyl cyclase(sGC) with Kd of 0.6-1.1 μM in the presence of CO.
  • HY-17584
    Linaclotide Agonist 98.44%
    Linaclotide is a potent and selective guanylate cyclase C agonist; developed for the treatment of constipation-predominant irritable bowel syndrome (IBS-C) and chronic constipation.
  • HY-14779
    Riociguat Activator 99.58%
    Riociguat is an oral stimulator of soluble guanylate cyclase (sGC) used in the treatment of pulmonary hypertension.
  • HY-14536
    Methylene Blue Inhibitor >98.0%
    Methylene blue (Basic Blue 9) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue is a vasopressor and is often used as a dye in several medical procedures. Methylene blue has antinociception, antimalarial, antidepressant and anxiolytic activity effects. Methylene Blue has the potential for methemoglobinemias, neurodegenerative disorders and ifosfamide-induced encephalopathytreatment.
  • HY-16774
    Vericiguat Activator 99.09%
    Vericiguat (BAY1021189) is a potent, orally available and soluble guanylate cyclase stimulator.
  • HY-101255
    ODQ Inhibitor 99.52%
    ODQ is a potent and selective soluble guanylyl cyclase (sGC, nitric oxide-activated enzyme) inhibitor. ODQ enhances the pro-apoptotic effects of Cisplatin in human mesothelioma cells.
  • HY-P1179A
    Guanylin(human) TFA Activator
    Guanylin(human) TFA, a 15-amino acid peptide, is an endogenous intestinal guanylate cyclase activator. Guanylin(human) TFA is mainly found in gastrointestinal tract which regulates electrolytead water transport in intestinal and renal epithelia through cyclic GMP-dependent mechanism.
  • HY-P1179
    Guanylin(human) Activator
    Guanylin(human), a 15-amino acid peptide, is an endogenous intestinal guanylate cyclase activator. Guanylin(human) is mainly found in gastrointestinal tract which regulates electrolytead water transport in intestinal and renal epithelia through cyclic GMP-dependent mechanism.
  • HY-14181
    Cinaciguat Activator 99.40%
    Cinaciguat is an activator of guanylate cyclase (sGC), and used for acute decompensated heart failure.
  • HY-12376
    BAY 41-2272 Activator 99.97%
    BAY 41-2272 is a soluble guanylate cyclases (sGC) activator.
  • HY-78237
    Nelociguat Activator 99.73%
    Nelociguat (BAY60-4552) is a nitric oxide sensitive soluble guanylate cyclase stimulator.
  • HY-12379
    NS-2028 Inhibitor 99.91%
    NS-2028 is a highly selective soluble Guanylyl Cyclase (sGC) inhibitor with IC50 values of 30 nM and 200 nM for basal and NO-stimulated enzyme activity. NS-2028 inhibits soluble Guanylyl Cyclase activity in homogenates of mouse cerebellum and neuronal NO synthase with IC50 values of 17 nM and 20 nM. NS-2028 inhibits 3-morpholino-sydnonimine (SIN-1)-elicited formation of cyclic GMP in human cultured umbilical vein endothelial cells with an IC50 of 30 nM. NS-2028 is commonly used in the research of nitric oxide signaling pathways, it inhibits NO-dependent relaxant responses in non-vascular smooth muscle completely (1 μM). NS-2028 reduces vascular endothelial growth factor-induced angiogenesis and permeability.
  • HY-14181A
    Cinaciguat hydrochloride Activator 99.64%
    Cinaciguat hydrochloride is a potent soluble guanylate cyclase (GC) activator with EC50 of 15 nM in platelets.
  • HY-109066
    Olinciguat Activator 98.44%
    Olinciguat (IW-1701) is an oral guanylate cyclase (sGC) stimulator with concentration-dependent stimulation of sGC in purified rat and human enzyme assays and a whole cell assay.
  • HY-109039
    Praliciguat Activator 98.79%
    Praliciguat (IW-1973) is a potent and orally active soluble guanylate cyclase stimulator, enhances NO signaling, acts as a vasodilator. Praliciguat (IW-1973) stimulates sGC in HEK-293 cells with an EC50 of 197 nM.
  • HY-108741A
    Plecanatide acetate Agonist 99.26%
    Plecanatide acetate, an analogue of Uroguanylin, is an orally active guanylate cyclase-C (GC-C) receptor agonist. Plecanatide acetate activates GC-C receptors to stimulate cGMP synthesis with an EC50 of 190 nM in T84 cells assay. Plecanatide acetate can be used for the research of chronic idiopathic constipation, and it also shows anti-inflammatory activity in models of murine colitis.
  • HY-B1359
    Methylene blue trihydrate Inhibitor
    Methylene blue trihydrate (C.I. Basic Blue 9 trihydrate) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue trihydrate is a vasopressor and is often used as a dye in several medical procedures. Methylene blue trihydrate has antinociception, antimalarial, antidepressant and anxiolytic activity effects. Methylene Blue trihydrate has the potential for methemoglobinemias, neurodegenerative disorders and ifosfamide-induced encephalopathytreatment.
  • HY-100295
    (4-Acetamidocyclohexyl) nitrate Activator
    (4-Acetamidocyclohexyl) nitrate (BM121307) is a guanylate cyclase activator.
  • HY-108741
    Plecanatide Agonist 98.90%
    Plecanatide, an analogue of Uroguanylin, is an orally active guanylate cyclase-C (GC-C) receptor agonist. Plecanatide activates GC-C receptors to stimulate cGMP synthesis with an EC50 of 190 nM in T84 cells assay. Plecanatide shows anti-inflammatory activity in models of murine colitis.
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