β-Galactosidase is an exoglycosidase which hydrolyzes the β-glycosidic bond formed between a galactose and its organic moiety. It may also cleave fucosides and arabinosides but at a much lower rate. It is an essential enzyme in … 展开

β-Galactosidase can catalyze three different reactions in organisms. In one, it can go through a process called transgalactosylation to make allolactose, creating a positive feedback loop for the production of β-galactose. Allolactose can also be cleaved to form … 展开

Some species of bacteria, including E. coli, have additional β-galactosidase genes. A second gene, called evolved β-galactosidase (ebgA) … 展开

• beta-Galactosidase at the U.S. National Library of Medicine Medical Subject Headings (MeSH) 展开

The 1,023 amino acids of E. coli β-galactosidase were sequenced in 1983, and its structure determined eleven years later in 1994. The 展开

The β-galactosidase assay is used frequently in genetics, molecular biology, and other life sciences. An active enzyme may be detected using … 展开

Much of the work done on β-galactosidase is derived from E. coli. However the enzyme can be found in many plants (especially fruits), mammals, yeast, bacteria, and fungi. β-galactosidase genes can differ in the length of their coding sequence and the length … 展开