Properties of Alginate Lyases from Marine Bacteria
نویسندگان
چکیده
منابع مشابه
Characterization of the alginate lyases from Vibrio 1 splendidus 12 B 01 2 3
18 Alginate lyases are enzymes that degrade alginate through β-elimination of the glycosidic bond 19 into smaller oligomers. We investigated the alginate lyases from Vibrio splendidus 12B01, a 20 marine bacterioplankton species that can grow on alginate as its sole carbon source. We 21 identified, purified, and characterized four polysaccharide lyase family 7 alginates lyases – 22 AlyA, AlyB, A...
متن کاملExopolysaccharides from Marine and Marine Extremophilic Bacteria: Structures, Properties, Ecological Roles and Applications
The marine environment is the largest aquatic ecosystem on Earth and it harbours microorganisms responsible for more than 50% of total biomass of prokaryotes in the world. All these microorganisms produce extracellular polymers that constitute a substantial part of the dissolved organic carbon, often in the form of exopolysaccharides (EPS). In addition, the production of these polymers is often...
متن کاملCultivable Alginate Lyase-Excreting Bacteria Associated with the Arctic Brown Alga Laminaria
Although some alginate lyases have been isolated from marine bacteria, alginate lyases-excreting bacteria from the Arctic alga have not yet been investigated. Here, the diversity of the bacteria associated with the brown alga Laminaria from the Arctic Ocean was investigated for the first time. Sixty five strains belonging to nine genera were recovered from six Laminaria samples, in which Psychr...
متن کاملCharacterization of an Eukaryotic PL-7 Alginate Lyase in the Marine Red Alga Pyropia yezoensis
BACKGROUND Alginate lyases belonging to polysaccharide lyase family-7 (PL-7) are the most well studied on their structures and functions among whole alginate lyases. However, all characterized PL-7 alginate lyases are from prokaryotic bacteria cells. Here we report the first identification of eukaryotic PL-7 alginate lyase from marine red alga Pyropia yezoensis. METHODS The cDNA encoding an a...
متن کاملextraction and acetylation of purified trypsin from bovin pancreas and study of some its physico-chemical properties
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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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1984
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.47.4.699-703.1984