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Genomic and enzymatic results show Bacillus cellulosilyticus uses a novel set of LPXTA carbohydrases to hydrolyze polysaccharides.
PLoS One
November 2013
Lucigen Corporation, Middleton, Wisconsin, United States of America.
Background: Alkaliphilic Bacillus species are intrinsically interesting due to the bioenergetic problems posed by growth at high pH and high salt. Three alkaline cellulases have been cloned, sequenced and expressed from Bacillus cellulosilyticus N-4 (Bcell) making it an excellent target for genomic sequencing and mining of biomass-degrading enzymes.
Methodology/principal Findings: The genome of Bcell is a single chromosome of 4.
Complete genome sequence of the complex carbohydrate-degrading marine bacterium, Saccharophagus degradans strain 2-40 T.
PLoS Genet
May 2008
Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, Maryland, USA.
The marine bacterium Saccharophagus degradans strain 2-40 (Sde 2-40) is emerging as a vanguard of a recently discovered group of marine and estuarine bacteria that recycles complex polysaccharides. We report its complete genome sequence, analysis of which identifies an unusually large number of enzymes that degrade >10 complex polysaccharides. Not only is this an extraordinary range of catabolic capability, many of the enzymes exhibit unusual architecture including novel combinations of catalytic and substrate-binding modules.
View Article and Find Full Text PDFSolution structure of the fibronectin type III domain from Bacillus circulans WL-12 chitinase A1.
J Biol Chem
January 2002
Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan.
Growing evidence suggests that horizontal gene transfer plays an integral role in the evolution of bacterial genomes. One of the debated examples of horizontal gene transfer from animal to prokaryote is the fibronectin type III domain (FnIIID). Certain extracellular proteins of soil bacteria contain an unusual cluster of FnIIIDs, which show sequence similarity to those of animals and are likely to have been acquired horizontally from animals.
View Article and Find Full Text PDFRoot mucilage from pea and its utilization by rhizosphere bacteria as a sole carbon source.
Mol Plant Microbe Interact
June 2001
Department of Horticulture and Crop Science, The Ohio State University, Columbus 43210, USA.
Plant roots secrete a complex polysaccharide mucilage that may provide a significant source of carbon for microbes that colonize the rhizosphere. High molecular weight mucilage was separated by high-pressure liquid chromatography gel filtration from low molecular weight components of pea root exudate. Purified pea root mucilage generally was similar in sugar and glycosidic linkage composition to mucilage from cowpea, wheat, rice, and maize, but appeared to contain an unusually high amount of material that was similar to arabinogalactan protein.
View Article and Find Full Text PDFAn unusual extracellular carbohydrase produced by the yeast Lipomyces tetrasporus.
Biochem Soc Trans
April 1990
Department of Industrial Microbiology, University College Dublin, Belfield, Republic of Ireland.
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