نتایج جستجو برای: prochymosin
تعداد نتایج: 61 فیلتر نتایج به سال:
Chicken pepsinogen was incubated at pH2.5 with pepstatin. The zymogen activated itself by a sequential mechanism and an intact peptide derived from residues 1-26 in the protein was released in the first step. This peptide was found to inhibit the milk-clotting activities of pig and chicken pepsins and calf chymosin but to different extents.
The industrial yeast Yarrowia lipolytica secretes high amounts of an alkaline extracellular protease encoded by the XPR2 gene. The industrial use of the XPR2 promoter was however hindered by its complex regulation. We designed hybrid promoters, based on tandem copies of the XPR2 promoter UAS1 region. In contrast to native XPR2 promoter, these hybrid promoters were not repressed by the preferred...
BACKGROUND The secretion of heterologous animal proteins in filamentous fungi is usually limited by bottlenecks in the vesicle-mediated secretory pathway. RESULTS Using the secretion of bovine chymosin in Aspergillus awamori as a model, we found a drastic increase (40 to 80-fold) in cells grown with casein or casein phosphopeptides (CPPs). CPPs are rich in phosphoserine, but phosphoserine its...
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