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Lack of alpha-galactosidase activity in leukocytes has been linked to Fabry Disease. [2] Galactosidases have a variety of uses, including the production of prebiotics, the biosynthesis of transgalactosylated products, and the removal of lactose. B-galactosidase forms the basis of lac z operon in bacteria which can be used to control gene ...
Some species of bacteria, including E. coli, have additional β-galactosidase genes. A second gene, called evolved β-galactosidase (ebgA) gene was discovered when strains with the lacZ gene deleted (but still containing the gene for galactoside permease, lacY), were plated on medium containing lactose (or other 3-galactosides) as sole carbon ...
High G+C Gram-positive bacteria Bacillati "Bipolaricaulota" Hao et al. 2018 KB1 "Acetothermia" (OP1) "Fraserbacteria" (RIF31) Bacillati: Deinococcota: Weisburg, Giovannoni & Woes 2021 Bacillati "Margulisiibacteriota" corrig. Anantharaman et al. 2016 "Saganbacteria" Bacillati: Cyanobacteriota: Oren, Mares & Rippka 2022 Blue-green algae ...
Colonies that produce β-galactosidase are turned blue by X-gal (5-bromo-4-chloro-3-indolyl-β-D-galactoside) which is an artificial substrate for B-galactosidase whose cleavage results in galactose and 4-Cl,3-Br indigo thus producing a deep blue color. [16] Allolactose is an isomer of lactose and is the inducer of the lac operon. Lactose is ...
Galectin-3 has an affinity for beta-galactosides and exhibits antimicrobial activity against bacteria and fungi. [8]This protein has been shown to be involved in the following biological processes: cell adhesion, cell activation and chemoattraction, cell growth and differentiation, cell cycle, and apoptosis. [7]
Senescence-associated beta-galactosidase, along with p16 Ink4A, is regarded to be a biomarker of cellular senescence. [1] [2] Its existence was proposed in 1995 by Dimri et al. [3] following the observation that when beta-galactosidase assays were carried out at pH 6.0, only cells in senescence state develop staining.
Anisha, G. S.; John, Rojan P.; Prema, P.; Pandey, Ashok (4 September 2008). "Investigation on α-Galactosidase Production by Streptomyces griseoloalbus in a Forcefully Aerated Packed-Bed Bioreactor Operating in Solid-State Fermentation Condition".
α-Galactosidase ( EC 3.2.1.22, α-GAL, α-GAL A; systematic name α-D-galactoside galactohydrolase) is a glycoside hydrolase enzyme that catalyses the following reaction: [1] Hydrolysis of terminal, non-reducing α- D -galactose residues in α- D -galactosides, including galactose oligosaccharides, galactomannans and galactolipids