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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 97 for “"Proteolytic activity"”.
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Increased structure-bound proteolytic activity in maturing dystrophic skeletal muscle
… mice (Spencer et al., 1995). Increased calpain activity has been demonstrated in mdx myotubes (Alderton et al., 2000a). There is also evidence of a role for calpain in DMD, but the contribution of calpain activity to the onset of DMD has not yet been determined. The purpose of this study was to …
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Characterization of Extracellular Proteolytic Activity From Prevotella Ruminicola and Streptococcus Bovis
… protein breakdown. Further examination of the proteolytic activities of P. ruminicola NCFB 2202, D31d, GA33, M384, and B$\sb1$4 revealed a range of proteolytic enzymes varying in number, size, and catalytic type. Large differences in total proteolytic activity were observed when these strains …
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Proteolytic Activity of Ruminal Bacteria: Studies With Butyrivibrio Fibrisolvens (Protease, Anaerobe, Protein)
The proteolytic activity of the ruminal anaerobe Butyrivibrio fibrisolvens was examined using azocasein degradation to monitor activity. Growing cells of B. fibrisolvens produced an extracellular proteolytic activity and the rate of enzyme synthesis largely paralleled growth. Protease production …
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Growth and Proteolytic Activity of Selected Psychrotrophic Bacteria in Whole Milk and Whole Milk Retentate
… Tayfour et al. (73) observed that growth and proteolytic activity of Pseudomonas fluorescens P2a was less in skim milk retentates concentrated fivefold than in skim milk, however, skim milk concentrated 2 or 3 times showed better growth and proteolytic activity than did skim milk. …
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Novel Protein-protein Interactions Regulate The Proteolytic Activity Of The Pro- Apoptotic Serine Protease, Omi/htra2
… induction of caspase-independent apoptosis. The proteolytic activity of Omi is necessary and essential for its pro-apoptotic function. Recent studies suggest the proteolytic activity of Omi is regulated by specific protein-protein interactions. Presenilin was identified to be such a regulator of …
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The proteolytic activity of yoghurt and probiotic bacteria for the improved viability of probiotic bacteria in fermented milk products
The proteolytic activity of various strains of yoghurt and probiotic bacteria, particularly their amino-, di-, tri- and endo-peptidase activities was studied. Nine strains of Streptococcus thermophilus, 6 strains of Lactobacillus delbrueckii ssp. bulgaricus, 14 strains of Lactobacillus acidophilus …
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Interaction of the I Colicins With the Outer Membrane of Escherichia Coli: I. Purification and Characterization of the Colicin I Receptor. Ii. Proteolytic Activity Associated With the Outer Membrane
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1982.
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Studies on stationary phase Vibrio sp. 2
… in stationary phase Vibrio cells. The specific proteolytic activity of shaking stationary phase cell-free extracts against the foreign protein [¹⁴C-me]globin was slightly higher than that of extracts from standing or exponential phase cells, while the specific proteolytic activity against …
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Release of bioactive peptides from milk proteins by lactobacillus species
Proteolytic activity is very important characteristic of Lactic Acid Bacteria (LAB) They produce therapeutic benefits and also increase physiological activity of cultured dairy products by liberating a number of biologically active peptides. The main aim of this project was to determine the release …
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Strain identification, viability and probiotics properties of lactobacillus Casei
… at various temperature during storage and their proteolytic activity, 4) to investigate the growth, viability and activity of Lactobacillus strains in skim milk containing prebiotics and 5) to investigate in vitro inhibition of Helicobacter pylori by Lactobacillus casei strains.
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Biocontrol Systems for Rhizotocnia Disease of Soybean
The detection of proteolytic activity by strain B153-2-2 and isolate 2B-12 indicated the possible involvement of extracellular enzymes in antagonism and biocontrol. Antagonism by cell-free culture filtrate fractions indicated that strain B153-2-2 produced an active metabolite. Endopeptidase, acid …
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The tissue factor-factor VII(a) complex in blood coagulation
… is the catalytic subunit. FVIIa does have some proteolytic activity by itself; however, association with TF inserted in an appropriate phospholipid bilayer increases its proteolytic activity on macromolecular substrates many million-fold. The mechanisms by which TF enhances the activity of …
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Characterisation of fibrinogen and fibrin proteolysis by the neutrophil membrane
… that the neutrophil membrane associated proteolytic activity displayed similar characteristics to proteases of the azurophil granule. The proteolytic activity of the membrane was concluded from inhibitor profiles, zymography, and the apparent molecular mass values and hydrophobicity of …
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Clostridium difficile and its toxins
… weeks; and that apart from this there is no proteolytic activity 6. that the hyaluronidase produced by all strains is antigenically uniform? and so is the lethal toxin; 7. and that the 'haemolysin' is almost certainly complex.
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Regulation of Cyclin G2 Degradation in Human Ovarian Cancer Cells
… we showed that cyclin G2 is a target of calpains proteolytic activity in a number of human ovarian cancer cells. Furthermore, we found that inhibition of EGFR in those cells led to protection of cyclin G2 from degradation. Finally, we demonstrated that EGF stimulation also resulted in degradation …
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Analysis of genes and enzymes involved in the degradation of cellulose and proteins by Butyrivibrio fibrisolvens H17c
… expressing cellulase, xylanase, and protease activity. Two genes expressing endo-β-1,4-glucanase and cellodextrinase activity were cloned in E. coli as host. The gene expressing endo-β-1,4-glucanase activity (end1) was cloned on a recombinant plasmid pES400. The end1 gene was located on a 6.8 …
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Regulation of Cell Invasion by the Podosome/Invadopod Protein Tks5
… in adhesion, chemotaxis, and the expression/proteolytic activity of MMP9. I have further shown that Src family kinase-dependent Tks5 phosphorylation is necessary for podosome formation and matrix degradation activity in macrophages. A similar investigation was carried out on the invadopodia …
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Host-Microbial Interactions that Modulate Luminal IgA
… cultured microbes from IgA-Low mice had proteolytic activity capable of degrading secretory component (SC) in vitro. These findings support the idea that degradation of SC in vivo would make IgA more susceptible to degradation itself. These studies highlight the ability of the microbiota …
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Elucidating the Molecular Function of Reprolysin Metalloproteases in Tick-Host-Pathogen Interaction
… is secreted as a proenzyme and is shown to have proteolytic activity, degrading fibrinogen and gelatinase activity, as well as disturbing homeostasis<sup>1</sup><sup>2</sup>. Previous work with the <em>Amblyomma americanum</em> sialotranscriptome identified over 40 metalloproteases secreted in …
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