نتایج جستجو برای: associated serine protease
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Since their discovery as important determinants of virulence and growth, the type VII ESX secretion systems (ESX-1 to ESX-5) of slow-growing pathogenic mycobacteria have been the focus of intense scrutiny. Genetic studies have been instrumental in identifying the core components and substrates of these molecular secretion machines and have helped uncover the multifunctional properties of some o...
Serine proteases in the adult CNS contribute both to activity-dependent structural changes accompanying learning and to the regulation of excitotoxic cell death. Brain serine protease 1 (BSP1)/neuropsin is a trypsin-like serine protease exclusively expressed, within the CNS, in the hippocampus and associated limbic structures. To explore the role of this enzyme, we have used gene targeting to d...
Smoking is associated with lung inflammation and a protease-antiprotease imbalance. We previously reported that cigarette smoke extract (CSE) stimulates human lung fibroblasts to release chemotactic cytokines. We hypothesized that serine protease inhibitors might modulate lung fibroblast release of chemotactic cytokines in response to CSE. To test this hypothesis, serine protease inhibitors (FK...
We have identified a novel serine protease designated EOS by sequence identity searches. The deduced protein contains 284 amino acids with an active form containing 248 amino acids starting from an Ile-Val-Gly-Gly motif. The active form comprises a catalytic triad of conserved amino acids: His77, Asp126 and Ser231. It shares 44% identity with beta-tryptase and belongs to the S1 trypsin-like ser...
Protease inhibitors, which can inhibit insect digestive enzymes, and carbohydrate binding lectins are potential control mechanisms against herbivorous insects. Larval midgut extracts fi-om Eldana saccharina Walker (Lepidoptera: Pyralidae) were assayed for protease activity in the presence of protease inhibitors in order to determine the dominant protease types (serine, aspartic, metalloor cyste...
The lectin pathway of complement activation is an important component of the innate immune defense. The initiation complexes of the lectin pathway consist of a recognition molecule and associated serine proteases. Until now the autoactivating mannose-binding lectin-associated serine protease (MASP)-2 has been considered the autonomous initiator of the proteolytic cascade. The role of the much m...
Positional information along the dorsal-ventral axis of the Drosophila embryo is acquired through a signal transduction pathway which employs a extracellular protease cascade. The sequential activation of serine protease zymogens results in the ventrally localized production of a ligand in the perivitelline space of the embryo. Snake is one of several serine proteases which function in generati...
A 'Heat treatment aqueous two phase system' was employed for the first time to purify serine protease from kesinai (Streblus asper) leaves. In this study, introduction of heat treatment procedure in serine protease purification was investigated. In addition, the effects of different molecular weights of polyethylene glycol (PEG 4000, 6000 and 8000) at concentrations of 8, 16 and 21% (w/w) as we...
Hypomorphic mutations in the human SPINT2 gene cause a broad spectrum of abnormalities in organogenesis, including organ and digit duplications, atresia, fistulas, hypertelorism, cleft palate and hamartoma. SPINT2 encodes the transmembrane serine protease inhibitor HAI2 (placental bikunin), and the severe developmental effects of decreased HAI2 activity can be hypothesized to be a consequence o...
Smoking is associated with lung inflammation and a protease-antiprotease imbalance. We previously reported that cigarette smoke extract (CSE) stimulates human lung fibroblasts to release chemotactic cytokines. We hypothesized that serine protease inhibitors might modulate lung fibroblast release of chemotactic cytokines in response to CSE. To test this hypothesis, serine protease inhibitors (FK...
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