نتایج جستجو برای: mutant strains
تعداد نتایج: 270616 فیلتر نتایج به سال:
In an attempt to obtain an industrial strain with higher yield of wanlongmycin, the wild strain Streptomyces griseovariabilis GAAS2507 was mutated by a novel mutagen, nitrogen ion beam with energy of 20 kilo electron volts (KeV) and dose ranging from 7.80 x 10 to 2.86 x 10 ions/cm. One mutant strain WN939 was obtained. Its yield of wanlongmycin reached 271.24 μg/mL, which was 82.10% higher than...
background: streptokinase is a bacterial protein produced by different beta hemolytic streptococci and widely used in thrombolytic treatment. the main disadvantage of using streptokinase is antibody formation which causes allergic reaction to neutralize effects of streptokinase therapy. aim of this study was investigate of recombinant mutant streptokinase fibrinolytic activity. m aterials and m...
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