GB-110 is a potent, orally active, and nonpeptidic protease activated receptor 2 (PAR2) agonist. GB-110 selectively induces PAR2-mediated intracellular Ca2+ release in HT29 cells with an EC50 of 0.28 μM[1].
PAR-2 (1-6) (human) (SLIGKV), a peptide ligand, is a PAR-2 agonist[1].
Protease-Activated Receptor-4 is the agonist of proteinase-activated receptor-4 (PAR4).
TFLLR-NH2 is a selective PAR1 agonist with an EC50 of 1.9 μM.
FR171113 is a specific and non-peptide thrombin receptor antagonist. FR171113 exhibits the antithrombotic effects of a PAR1 antagonist. FR171113 inhibits thrombin-induced platelet aggregation with an IC50 of 0.29 μM.[1][2][3][4].
TFLLR-NH2 (TFA) is a selective PAR1 agonist with an EC50 of 1.9 μM.
AZ-8838 (AZ8838) is a potent, and selective PAR2 antagonist with Kd of 125 nM; shows excellent selectivity over PAR1 and PAR4 (>50 uM).
PAR-4 Agonist Peptide, amide is a proteinase-activated receptor-4 (PAR-4) agonist, which has no effect on either PAR-1 or PAR-2 and whose effects are blocked by a PAR-4 antagonist.
AC-55541 is a novel small-molecule protease-activated receptor 2(PAR2) agonist; activated PAR2 signaling in cellular proliferation assays, phosphatidylinositol hydrolysis assays, and Ca(2+) mobilization assays, with potencies ranging from 200 to 1000 nM.IC50 value: 200-1000 nM(EC50) [1]Target: PAR2 agonistNeither AC-55541 nor AC-264613 had activity at any of the other PAR receptor subtypes, nor did they have any significant affinity for over 30 other molecular targets involved in nociception. Visualization of EYFP-tagged PAR2 receptors showed that each compound stimulated internalization of PAR2 receptors. AC-55541 was well absorbed when administered intraperitoneally to rats, reaching micromolar peak plasma concentrations. AC-55541 was stable to metabolism by liver microsomes and maintained sustained exposure in rats, with elimination half-lives of 6.1 h. Intrapaw administration of AC-55541 or AC-264613 elicited robust and persistent thermal hyperalgesia and edema. Coadministration of either a tachykinin 1 (neurokinin 1) receptor antagonist or a transient receptor potential vanilloid (TRPV) 1 antagonist completely blocked these effects. Systemic administration of either AC-55541 or AC-264613 produced a similar degree of hyperalgesia as was observed when the compounds were administered locally.
Protease-Activated Receptor-2 Activating Peptide is an agonist of Protease-Activated Receptor-2 (PAR-2).
tcY-NH2 is a selective rat PAR4 antagonist peptide. tcY-NH2 inhibits thrombin- and AY-NH2-induced rat platelet aggregation[1][2].
SFNGGP-NH2 is a biological active peptide. (PAR-3 is a high-affinity thrombin receptor. PAR-3 mRNA is expressed in the cutaneous mast cells of humans. Protease-Activated Receptors (PARs) have been studied for their roles in itch and their itch-associated response through histamine-dependent/independent pathways have been reported. PAR-3 has been shown not to induce itching alone but possibly in conjunction with PAR-4. Co-expression of PAR-3 and PAR-4 enhances thrombin action suggesting that PAR-3 alone does not mediate transmembrane signaling but instead functions as a cofactor to activate PAR-4.)
ML354 is a selective PAR4 antagonist with an IC50 of 140 nM[1].
ENMD-1068 hydrobromide is a potent PAR2 antagonist. ENMD-1068 hydrobromide attenuates joint inflammation in a dose-dependent manner. ENMD-1068 hydrobromide can be used in research of joint inflammation[1].
TRAP-7 is a thrombin receptor (PAR) activating peptide. TRAP-7 stimulates total inositol phosphate (IP) accumulation and phosphorylation of a specific endogenous substrate for activated PKC. TRAP-7 can be used in cardiovascular disease research[1].
TRAP-5 amide is a protease-activated receptor 1 (PAR 1) agonist peptide[1].
GB-88 is a selective, orally PAR2 antagonist, inhibits PAR2 activates Ca(2+) release with an IC 50 of 2 µM[1].
UDM-001651 is a potent, selective, and orally bioavailable protease-activated receptor 4 (PAR4) antagonist (IC50=4 nM; Kd=1.4 nM). UDM-001651 shows antiplatelet potency (IC50=25 nM) in a γ-thrombin-induced platelet-rich plasma aggregation assay (γ-Thr PRP)[1].
TRAP-6 amide is a PAR-1 thrombin receptor agonist peptide[1].
TFLLRN-NH2 is a biological active peptide. (PAR-1 Agonist)
Ala-parafluoroPhe-Arg-Cha-Cit-Tyr-NH2 is a biological active peptide. (Protease activated receptor 1 (PAR-1) belongs to a subfamily of G-protein coupled receptors and is known to mediate the cellular effects of thrombin. This peptide is a PAR-1 selective agonist displaying a high level of specificity to PAR-1 over PAR-2. The specificity of peptide was evaluated in cell-based calcium signaling assay using HEK293 cells. PAR-1 selective agonists can be used to study PAR-1 activation in vivo. In addition to its varied cellular effects of thrombin, PAR-1 has also been shown to coordinate with PAR-4 and regulate thrombin-induced hepatocellular carcinoma harboring thrombin formation within the tumor environment classified as 'coagulation type'.)
Thrombin Receptor Activator for Peptide 5 (TRAP-5) is also called Coagulation Factor II Receptor (1-5) or Proteinase Activated Receptor 1 (1-5), used in the research of coronary heart disease (CHD).
SCH79797 dihydrochloride is a highly potent, selective nonpeptide protease activated receptor 1 (PAR1) antagonist. SCH79797 dihydrochloride inhibits binding of a high-affinity thrombin receptor-activating peptide to PAR1 with an IC50 of 70 nM and a Ki of 35 nM. SCH79797 dihydrochloride inhibits thrombin-induced platelet aggregation with an IC50 of 3 μM. SCH79797 dihydrochloride has antiproliferative and pro-apoptotic effects, and limits myocardial ischemia/reperfusion injury in rat hearts. SCH79797 dihydrochloride also potently prevents PAR1 activation in vascular smooth muscle cells, endothelial cells, and astrocytes[1][2][3][4].
RWJ-56110 dihydrochloride is a potent, selective, peptide-mimetic inhibitor of PAR-1 activation and internalization (binding IC50=0.44 uM) and shows no effect on PAR-2, PAR-3, or PAR-4. RWJ-56110 dihydrochloride inhibits the aggregation of human platelets induced by both SFLLRN-NH2 (IC50=0.16 μM) and thrombin (IC50=0.34 μM), quite selective relative to U46619 (HY-108566). RWJ-56110 dihydrochloride blocks angiogenesis and blocks the formation of new vessels in vivo. RWJ-56110 dihydrochloride induces cell apoptosis[1][2].
BMS-98614 is an orally active, selective thrombin receptor protease-activated receptor-4 (PAR-4) antagonist with an IC50 value of 0.4 nM. BMS-98614 has excellent antithrombotic effect[1][2].
SCH79797 is a highly potent, selective nonpeptide protease activated receptor 1 (PAR1) antagonist. SCH79797 inhibits binding of a high-affinity thrombin receptor-activating peptide to PAR1 with an IC50 of 70 nM and a Ki of 35 nM. SCH79797 inhibits thrombin-induced platelet aggregation with an IC50 of 3 μM. SCH79797 has antiproliferative and pro-apoptotic effects, and limits myocardial ischemia/reperfusion injury in rat hearts. SCH79797 also potently prevents PAR1 activation in vascular smooth muscle cells, endothelial cells, and astrocytes[1][2][3][4].
Atopaxar (E5555) hydrobromide is a potent, orally active, selective and reversible thrombin receptor protease-activated receptor-1 (PAR-1) antagonist. Atopaxar hydrobromide, an antiplatelet agent, interferes with platelet signaling. Atopaxar hydrobromide can be used for the research of atherothrombotic disease[1][2].