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Serine protease inhibitors act on peptidases that cleave proteins with a serine, histidine and aspartate triad. The family spans digestive enzymes such as trypsin and chymotrypsin, coagulation factors, kallikreins and neutrophil elastase. Phenylmethylsulfonyl fluoride (PMSF), 4-(2-aminoethyl)benzenesulfonyl fluoride (AEBSF HCl) and the polypeptide aprotinin are broad inhibitors often added to lysis buffers. Sivelestat sodium salt and alvelestat inhibit neutrophil elastase, which is also covered by the neighboring Elastases category. Camostat mesylate and nafamostat mesylate act on transmembrane serine protease 2 (TMPRSS2) and related trypsin-like enzymes. In 2020, camostat mesylate was reported to block TMPRSS2-dependent cell entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
ZK824859 is an oral available and selective urokinase plasminogen activator (uPA) inhibitor with IC50s of 79 nM, 1580 nM and 1330 nM for human uPA, tPA, and plasmin, respectively.
Streptokinase, derived from β-hemolytic streptococcus (Lancefield Group C), acts as a plasminogen activator. This enzyme is critical in promoting fibrinolysis, making it an important tool for studying blood-clotting disorders. Additionally, Streptokinase is utilized in research focused on enhancing reperfusion blood flow following coronary artery occlusion, contributing to insights into cardiovascular therapeutics and interventions.
Synonyms: Actilyse; Activase
Alteplase is a recombinant tissue plasminogen activator that acts primarily as a thrombolytic agent by converting plasminogen to plasmin, which leads to fibrinolysis. This compound is crucial in the management of acute ischemic stroke, pulmonary embolism, and acute myocardial infarction. Alteplase is also utilized for the treatment of occluded catheters, facilitating the restoration of vascular patency in clinical settings.
Synonyms: rEK
Recombinant enterokinase (rEK) is a serine protease that functions as the physiological activator of trypsinogen, converting it into its active form, trypsin. This enzyme is essential for various biochemical assays and applications involving protein digestion and processing. Recombinant enterokinase is widely used in research focused on proteolytic processes, enzyme activation, and protein purification techniques.
LM2I is an argininosuccinate synthase (ASS1) enzyme activator derived from Spinosyn A. This compound demonstrates significant antiproliferative activity against various colorectal cancer cell lines and xenograft tumors. LM2I effectively inhibits colorectal cancer cell growth through the EGFR signaling pathway, making it a valuable tool for research in cancer biology and therapeutic development targeting ASS1.
Synonyms: TNK-tPA
Tenecteplase is a genetically modified tissue plasminogen activator, designed to enhance thrombolytic efficacy. By introducing mutations in three specific gene loci, Tenecteplase facilitates the conversion of plasminogen to plasmin, promoting fibrinolysis. This reagent is primarily employed in research applications related to acute ischemic stroke, enabling investigations into treatment strategies and mechanisms of thrombus resolution.
4-Iodobenzylamine hydrochloride is a chemical probe that selectively interacts with serine proteases, including trypsin and urokinase-type plasminogen activator (uPA). This reagent facilitates the study of enzyme binding patterns and can aid in understanding enzymatic roles in various biological processes. Its applications extend to research in protease activity and modulation in disease models.
Synonyms: SAK
Staphylokinase is a plasminogen activator derived from Staphylococcus aureus. This potent enzyme exhibits fibrin-specific thrombolytic activity, facilitating the conversion of plasminogen to plasmin. Staphylokinase is utilized in research focused on fibrinolysis and related cardiovascular studies, offering valuable insights into thrombus resolution mechanisms.
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