نتایج جستجو برای: phospholipase c
تعداد نتایج: 1066406 فیلتر نتایج به سال:
We succeeded in hyperproduction of Bacillus thuringiensis phosphatidylinositol-specific phospholipase C (PIPLC), using a Bacillus brevis 47 expression system. The recombinant B. thuringiensis PIPLC was expressed under the control of the middle wall protein gene promoter in B. brevis expression vector pNU211. A large amount of recombinant PIPLC (0.4 g per liter culture) was secreted into the med...
INTRODUCTION The phospholipase activity in Candida albicans and Candida dubliniensis isolated from oral candidiasis cases were studied. METHODS The phospholipase activity was evaluated in egg yolk agar. RESULTS All the C. albicans isolates (n = 48) showed phospholipase activity (mean Pz = 0.66). However, none of the C. dubliniensis isolates (n = 24) showed this activity. CONCLUSIONS The a...
Interaction of a phospholipase C (from Clostridium welchii) preparation with the first component of human and guinea pig complement in serum is due to contaminants devoid of phospholipase C activity.
Phospholipase C hydrolyses 50% of the phospholipids of rat liver microsomes. Our previous observations suggest that the hydrolysis is of the outer leaflet of the membrane bilayer. In the present investigation the products of hydrolysis and effect of phospholipase C treatment on the morphology of total, rough and smooth microsomes were investigated. The only product of phospholipase C treatment ...
The epileptic encephalopathies of infancy and childhood are a collection of epilepsy disorders characterized by refractory, severe seizures and poor neurological outcome, in which the mechanism of disease is poorly understood. We report the clinical presentation and evolution of epileptic encephalopathy in a patient, associated with a loss-of-function mutation in the phospholipase C-β 1 gene. W...
We have examined the effects of phospholipase C from Bacillus cereus (Bc) and from Clostridium perfringens (Cp) on various parameters involved in the activity and response of adenylate cyclase to glucagon in rat liver plasma membranes. A crude preparation of Cp-phospholipase C hydrolyzes “neutral” phospholipids (phosphatidylcholine, phosphatidylethanolamine, sphingomyelin) in these membranes. I...
Cyclic AMP affects microvascular smooth muscle contraction and growth. Therefore, it is important to elucidate mechanisms regulating cyclic AMP production in microvascular smooth muscle. In this study, we determined whether several signal transduction pathways regulate receptor-induced cyclic AMP in isolated preglomerular microvessels and microvascular smooth muscle cells. Preglomerular microve...
Diacylglycerol-induced translocation of diacylglycerol kinase (ATP:1,2-diacylglycerol 3-phosphotransferase, EC 2.7.1.107) from the soluble to the membrane-bound compartments was demonstrated both in crude tissue homogenates and in a reconstituted enzyme-membrane model system. In homogenates of either rat brain or liver, incubation with diacylglycerol or phospholipase C, but not phospholipase A2...
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