نتایج جستجو برای: protein precipitation
تعداد نتایج: 1289038 فیلتر نتایج به سال:
Chlorpromazine causes precipitation both of the glycoprotein and protein components of bile in vitro. The reaction depends on an electrostatic interaction between the negatively charged carboxyl groups on the bile components and the positively charged amine groups on the drug molecules in solution. The optimum conditions for the interaction between chiorprom. azine and bile components have been...
Proteolytic enzymes play important roles in food and drug industries. Actinidin, the most abundant protein of kiwifruit is a cystein protease (EC 3.4.22.14). In the present study, protein contents and levels of actinidin in kiwifruit cultivars were assayed and the enzyme was purified by a simple procedure. Actinidin was purified using two steps: (1)) precipitation by ammonium sulfate and (2) io...
A protein of unusual characteristics has been identified in normal rat sera by electrophoretic separation at pH 8.6, followed by precipitation of each fraction with a cationic detergent. This protein, which is closely identified with albumin after electrophoresis at pH 8.6, precipitates with cationic detergent at a low pH in contrast to albumin which precipitates with detergent only at a high p...
Transgenic plants may prove to be one of the most economical systems for the large-scale production of proteins and peptides. Our goal is to develop an approach for protein recovery from canola that will be adaptable to a wide variety of recombinant proteins. For recombinant protein recovery, the two downstream processes considered were extraction of target protein and purification of recombina...
1. It was found that the precipitation of collagen fibrils at 37 degrees from mixtures of chondroitin sulphate-protein and tropocollagen at physiological ionic strength and pH takes place in two distinct phases. The first occurs immediately on mixing either at 4 degrees or at 37 degrees , and the second occurs only at 37 degrees and after a lag phase whose magnitude depends on the proportions o...
We study the effect of isoforms of osteopontin (OPN) on the nucleation and growth of crystals from a supersaturated solution of calcium and phosphate ions. Dynamic light scattering is used to monitor the size of the precipitating particles and to provide information about their concentration. At the ion concentrations studied, immediate precipitation was observed in control experiments with no ...
با توجه به شیوع سرطان در جوامع امروزی، یافتن داروهای جدید برای درمان آن از اهمیت بالایی برخوردار است. استفاده از داروهای شیمیایی موجود به دلیل عوارض جانبی که دارند با محدودیت مصرف روبه رو می باشند. از این رو محققین درصدد یافتن مواد طبیعی با خاصیت ضد سرطانی می باشند. هدف اصلی این پایان نامه بررسی اثرات ضد سرطانی lactoferrin وwhey acidic protein موجود در شیر شتر می باشد. در تحقیق حاضر تأثیر lacto...
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