Purification and Properties of Cycloinulooligosaccharide Fructanotransferase from Paenibacillus polymyxa MG-CF6
نویسندگان
چکیده
منابع مشابه
Cytokinin production by Paenibacillus polymyxa
The production of hormones has been suggested to be one of the mechanisms by which plant growth-promoting rhizobacteria (PGPR) stimulate plant growth. To evaluate whether the free-living soil bacterium, Paenibacillus polymyxa, releases the hormone group cytokinins and, if so, their identity, the content of cytokinins in the growth media, before and after cultivation of this bacterium, was deter...
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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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By applying different classical and fast protein liquid chromatographic techniques, three xylanases (beta-1,4-d-xylan xylanhydrolase) were purified to homogeneity from the extracellular enzymatic complex of Bacillus polymyxa. The three enzymes (X(34)C, X(34)E, and X(22)) were small proteins of 34, 34, and 22 kDa and basic pIs 9.3, >9.3, and 9.0, respectively. X(34)C and X(34)E are closely relat...
متن کاملPaenibacillus polymyxa PKB1 produces variants of polymyxin B-type antibiotics.
Polymyxins are cationic lipopeptide antibiotics active against many species of Gram-negative bacteria. We sequenced the gene cluster for polymyxin biosynthesis from Paenibacillus polymyxa PKB1. The 40.8 kb gene cluster comprises three nonribosomal peptide synthetase-encoding genes and two ABC transporter-like genes. Disruption of a peptide synthetase gene abolished all antibiotic production, wh...
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ژورنال
عنوان ژورنال: Journal of Applied Glycoscience
سال: 2008
ISSN: 1344-7882,1880-7291
DOI: 10.5458/jag.55.217