نتایج جستجو برای: bacterial enzymes

تعداد نتایج: 323074  

Afsoon Afshari Ali Hatef Salmanian, Kobra Zakikhan Mandana Moshashaie

Site-directed mutagenesis (SDM) as a powerful technique was used to change two important and conserved amino acids in 5-enolpyruvylshikimate 3- phosphate synthase (EPSPS) gene of E. coli. The mutations changed glycine 96 to alanine and alanine 183 to threonine. These two amino acids are very important for intraction of the wide spectrum herbicide, glyphosate, to EPSP synthase enzymes. By design...

Saline rhizospheric areas are untouched environments for isolating actinomycetes with the potential of valuable salt tolerant enzyme production. In this study, we isolated and evaluated a total number of of 26 actinomycete strains from plant rhizosphere of the periphery of Dasht-e-Kavir desert. Isolated actinomycetes produced different enzymes. Among them 50, 46, 39, 27, 10 and 7 % of the isola...

Journal: :Current opinion in microbiology 2002
Frank M Raushel

Bacterial enzymes have been isolated that catalyze the hydrolysis of organophosphate nerve agents with high-rate enhancements and broad substrate specificity. Mutant forms of these enzymes have been constructed through rational redesign of the active-site binding pockets and random mutagenesis to create protein variants that are optimized for the detoxification of agricultural insecticides and ...

Journal: :jundishapur journal of microbiology 0
sen sudip kumar department of biotechnology, gandhi institute of engineering and technology, gunupur, odisha, india raut sangeeta department of biotechnology, gandhi institute of engineering and technology, gunupur, odisha, india satpathy soumya department of biotechnology, gandhi institute of engineering and technology, gunupur, odisha, india rout prangya ranjan department of biotechnology, national institute of technology, warangal, andhra pradesh, india bandyopadhyay bidyut department of biotechnology, oriental institute of science and technology, midnapore-721102, west bengal, india das mohapatra pradeep kumar department of microbiology, vidyasagar university, midnapore, west bengal, india; department of microbiology, vidyasagar university, midnapore-721102, west bengal, india. tel: +32-22276554. ext: 477, fax: +32-22275329

conclusions the current report isolates, characterizes, and demonstrates the novel heat-adapted amylase-producing bacteria ss1, ss2 and ss3 from taptapani hot spring, indicating its potentiality and stability under acidic conditions. materials and methods bacterial strains were isolated by dilution plating method from the water samples collected from taptapani hot spring, odisha and screened fo...

Journal: :Molecular biology and evolution 2004
Ulrich Genschel

Coenzyme A (CoA) holds a central position in cellular metabolism and therefore can be assumed to be an ancient molecule. Starting from the known E. coli and human enzymes required for the biosynthesis of CoA, phylogenetic profiles and chromosomal proximity methods enabled an almost complete reconstruction of archaeal CoA biosynthesis. This includes the identification of strong candidates for ar...

Journal: :Mathematical Modelling of Natural Phenomena 2022

The use of external enzymes provides an alternative way reducing communication in pathogenic bacteria that may lead to the degradation their signal and loss pathogeneity. present study considers optimal control problem for semilinear reaction-diffusion model bacterial quorum sensing under impact enzymes. Estimates solution controlled system are obtained, on basis which solvability extremal is p...

Journal: :medical journal of islamic republic of iran 0
razieh yazdanparast from the institute of biochemistry and biophysics. tehran university of medical sciences, tehran, isiamic republic of iran.

screening of3000 soil samples collected from cities of four different provinces of iran for starch-hydrolysing bacteria revealed that the nature is enriched with streptomyces species capable of producing amylolytic enzymes. among the bacterial isolates, one of the high starch-degrading strains was selected for further microbiological identification and also amylolytic enzyme(s) characterization...

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