Purification and properties of an inducible cephalosporinase from Pseudomonas maltophilia GN12873
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چکیده
منابع مشابه
Purification and from Properties of Pseudomonas Cephalosporinase Aer Uginosa
Cephalosporin j3-lactamase (cephalosporinase; CSase) was purified from a strain of Pseudonzonas aeruginosa resistant to ~-lactam antibiotics. The purified enzyme preparation gave a single protein band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and its molecular weight was about 34,000. The specific activity was 49.7 ilmoles/minute/mg of protein of the purified enzyme for the ...
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آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
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In the past decade considerable advances have been achieved in the study of induced enzyme biosynthesis in microorganisms. A comparison of three of the better studied systems, P-galactosidase in Escherichia coli (l), penicillinase in Bacillus cereus (2), and oc-glucosidase in Xaccharomyces cerevisiae (3) indicates that there are a number of differences in these inductions. In order to compare f...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1984
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.25.3.362