Results 41 to 50 of about 2,747,637 (331)

Cloning of the phospho-β-galactosidase gene inEscherichia colifrom lactose-negative mutants ofStreptococcus mutansisolated following random mutagenesis with plasmid pVA891 clone banks [PDF]

open access: yesFEMS Microbiology Letters, 1992
In order to mutagenize Streptococcus mutans a marker rescue plasmid, pVA891, was employed. The plasmid was ligated with Sau3AI digested chromosomal DNA fragments from S. mutans GS-5IS3 and the resultant plasmids were amplified in Escherichia coli.
Yutaka Sato   +3 more
openaire   +1 more source

A data comparison between a traditional and the single-step β-galactosidase assay

open access: yesData in Brief, 2016
This article describes reproducibility of a single-step automated β-galactosidase, and the equivalence of its data to the traditional assay (“Experiments in Molecular Genetics” [1]).
Jorrit Schaefer   +3 more
doaj   +1 more source

Screening of β-galactosidase enzyme production by probiotic lactic acid bacteria isolated from raw and fermented milk [PDF]

open access: yesArchives of Agriculture Sciences Journal
β-Galactosidase is a glycoside hydrolase enzyme that catalyzes the hydrolysis of terminal non-reducing β-D-galactose residues in β-D-galactosides. This study aimed to isolate β-galactosidase-producing bacteria from different types of milk.
M. Hassan, M. Hussein, E. Bakhiet
doaj   +1 more source

β-galactosidase Encapsulated in Carrageenan, Pectin and Carrageenan/Pectin: Comparative Study, Stability and Controlled Release [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
The present study investigated the encapsulation of β-galactosidase in carrageenan, pectin and its hybrid hydrogels by using the ionotropic gelation method.
RENATA CRISTINA SILVA   +2 more
doaj   +1 more source

Characterization and molecular cloning of a heterodimeric β-galactosidase from the probiotic strainLactobacillus acidophilusR22 [PDF]

open access: yesFEMS Microbiology Letters, 2007
Beta-galactosidase from the probiotic strain Lactobacillus acidophilus R22 was purified to apparent homogeneity by ammonium sulphate fractionation, hydrophobic interaction, and affinity chromatography. The enzyme is a heterodimer consisting of two subunits of 35 and 72 kDa, as determined by gel electrophoresis.
Thu-Ha, Nguyen   +6 more
openaire   +2 more sources

Antigenicity of a viral peptide displayed on β-galactosidase fusion proteins is influenced by the presence of the homologous partner protein [PDF]

open access: yesFEMS Microbiology Letters, 1996
Several beta-galactosidase fusion proteins have been constructed containing the entire VP1 protein from foot-and-mouth disease virus (FMDV) [Corchero et al. (1996) J. Biotechnol. in press]. The antigenicity of the major immunodominant site A (13 amino acids in length) within the VP1 protein has been studied in competitive ELISA using a panel of seven ...
J L, Corchero, A, Villaverde
openaire   +2 more sources

High gene expression inEscherichia coliof recombinant alginate lyase as a fused protein with β-galactosidase α-peptide [PDF]

open access: yesFEMS Microbiology Letters, 1995
Escherichia coli LE392 (pAL28) was previously isolated as a positive clone harboring the alginate lyase gene (aly) from an alginate-degrading strain, Pseudomonas sp. OS-ALG-9. The plasmid pAL205, one of the constructs obtained after successive subcloning of pAL28, gave the highest expression of aly in E. coli cells.
K, Fujiyama   +3 more
openaire   +2 more sources

Lactobacillus fermentumCRL 722 is able to deliver active α-galactosidase activity in the small intestine of rats [PDF]

open access: yesFEMS Microbiology Letters, 2005
alpha-galactooligosaccharides (alpha-GOS) found in legumes such as soybeans can cause gastrointestinal disorders since mammals lack alpha-galactosidase (alpha-Gal) in the small intestine which is necessary for their hydrolysis. Lactobacillus fermentum CRL 722 is a lactic acid bacterium (LAB) capable of degrading alpha-GOS due to its elevated alpha-Gal ...
Leblanc, Jean Guy   +3 more
openaire   +6 more sources

Prebiotic properties of Bacillus coagulans MA-13: production of galactoside hydrolyzing enzymes and characterization of the transglycosylation properties of a GH42 β-galactosidase

open access: yesMicrobial Cell Factories, 2021
Background The spore-forming lactic acid bacterium Bacillus coagulans MA-13 has been isolated from canned beans manufacturing and successfully employed for the sustainable production of lactic acid from lignocellulosic biomass. Among lactic acid bacteria,
Martina Aulitto   +9 more
semanticscholar   +1 more source

A β-Galactosidase-Based Bacterial Two-Hybrid System To Assess Protein−Protein Interactions in the Correct Cellular Environment

open access: yes, 2007
The vast majority of proteins functions in complex with one or more of the same or other proteins, indicating that protein−protein interactions play crucial roles in biology.
Bart Devreese (146471)   +4 more
core   +2 more sources

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