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  2. Beta-galactoside permease - Wikipedia

    en.wikipedia.org/wiki/Beta-galactoside_permease

    Galactoside permease is a protein coded by the lacY gene of the lac operon, and is found bound to the membrane of a cell for the purpose of binding galactoside molecules that have been solubilized. The protein is part of a system whose main function is to catalyze the accumulation and transport of lactose and other beta-galactosides across the ...

  3. β-Galactosidase - Wikipedia

    en.wikipedia.org/wiki/Β-Galactosidase

    Beta-gal is inhibited by L-ribose and by competitive inhibitors 2-phenylethyl 1-thio-β-D-galactopyranoside (PETG), D-galactonolactone, isopropyl thio-β-D-galactoside (IPTG), and galactose. [ 4 ] β-Galactosidase is important for organisms as it is a key provider in the production of energy and a source of carbons through the break down of ...

  4. lac operon - Wikipedia

    en.wikipedia.org/wiki/Lac_operon

    The lactose operon (lac operon) is an operon required for the transport and metabolism of lactose in E. coli and many other enteric bacteria.Although glucose is the preferred carbon source for most enteric bacteria, the lac operon allows for the effective digestion of lactose when glucose is not available through the activity of β-galactosidase. [1]

  5. Galactoside acetyltransferase - Wikipedia

    en.wikipedia.org/wiki/Galactoside_acetyltransferase

    Galactoside acetyltransferase (also known as Galactoside O-acetyltransferase, thiogalactoside transacetylase, β-galactoside transacetylase and GAT) is an enzyme that transfers an acetyl group from acetyl-CoA to β-galactosides, glucosides and lactosides. It is coded for by the lacA gene of the lac operon in E. coli. [1]

  6. Permease - Wikipedia

    en.wikipedia.org/wiki/Permease

    Lactose permease; Beta-galactoside permease; It was originally discovered in the 1930s by Joy Adames. It is a transporter protein that helps in various aspects of cellular life including DNA replication, translation of RNA, and diffusion.

  7. Building blocks of life found in samples from asteroid Bennu

    www.aol.com/news/building-blocks-life-found...

    Present in the samples were 14 of the 20 organic compounds called amino acids that are used to make proteins - complex molecules that play indispensable roles in the structure, function and ...

  8. A key protein may help Ozempic users retain muscle mass ... - AOL

    www.aol.com/key-protein-may-help-ozempic...

    Salk Institute researchers have identified a key protein that may help users of GLP-1 drugs such as Ozempic and Wegovy maintain muscle mass while losing weight.

  9. Galactoside - Wikipedia

    en.wikipedia.org/wiki/Galactoside

    A galactoside is a glycoside containing galactose. The H of the OH group on carbon-1 of galactose is replaced by an organic moiety. [1] Structure of ONPG, an example of a β-galactoside. Depending on whether the glycosidic bond lies "above" or "below" the plane of the galactose molecule, galactosides are classified as α-galactosides or β ...