4.6 Article

One-step synthesis of α-Gal epitope and globotriose derivatives by an engineered α-galactosidase

Journal

RSC ADVANCES
Volume 5, Issue 29, Pages 22361-22364

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra16917d

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Funding

  1. Major State Basic Research Development Program of China (973 Program) [2012CB822102]
  2. National High Technology Research and Development Program of China (863 Program) [2012AA021504]
  3. National Major Scientific and Technological Special Project for Significant New Drugs Development [2012ZX09502001-005]
  4. Independent Innovation Foundation of Shandong University [2012TS014]
  5. Keygrant Project of Chinese Ministry of Education [313033]
  6. Science and Technology Development Project of Shandong Province [2014GSF121006]

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Directed evolution of an alpha-galactosidase (Aga2) from Bifidobacterium breve 203 by random mutagenesis and subsequently by site-directed mutagenesis provided a mutant enzyme V564N that showed high alpha-transgalactosylation efficiency with unobserved hydrolysis towards transglycosylation products. Using this enzyme, a one-step reaction for the simultaneous synthesis of alpha-Gal epitope and globotriose derivatives was achieved.

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