Anomeric Selectivity of Trehalose Transferase with Rare <scp>l</scp>-Sugars
作者:Luuk Mestrom、Stefan R. Marsden、Hessel van der Eijk、Jesper U. Laustsen、Cy M. Jeffries、Dmitri I. Svergun、Peter-Leon Hagedoorn、Isabel Bento、Ulf Hanefeld
DOI:10.1021/acscatal.0c02117
日期:2020.8.7
glycosyltransferases catalyze the formation of glycosidic bonds between nucleotide sugar donors and carbohydrate acceptors. The anomeric selectivity of trehalose transferase from Thermoproteus uzoniensis was investigated for both d- and l-glycopyranose acceptors. The enzyme couples a wide range of carbohydrates, yielding trehalose analogues with conversion and enantioselectivity of >98%. The anomeric selectivity inverts
Asymmetric trehalose analogues to probe disaccharide processing pathways in mycobacteria
作者:Hadyn L. Parker、Ruben M. F. Tomás、Christopher M. Furze、Collette S. Guy、Elizabeth Fullam
DOI:10.1039/d0ob00253d
日期:——
Chemoenzymatic synthesis of azido-functionalised asymmetric trehalose analogues that are resistant to enzymatic degradation to probe carbohydrate processing pathways in mycobacteria.
Chemoenzymatic Synthesis of Trehalose Analogues: Rapid Access to Chemical Probes for Investigating Mycobacteria
作者:Bailey L. Urbanek、Douglas C. Wing、Krystal S. Haislop、Chelsey J. Hamel、Rainer Kalscheuer、Peter J. Woodruff、Benjamin M. Swarts
DOI:10.1002/cbic.201402288
日期:2014.9.22
Trehalose tools for TB: A one‐step chemoenzymatic method for the rapid and efficient synthesis of trehalose analogues was developed. This method enabled facile preparation and administration of a trehalose‐based probe for detecting mycobacteria, which might enable the development of new diagnostic tools for tuberculosis (TB) research.
The trehalose-specific transporter LpqY-SugABC is required for antimicrobial and anti-biofilm activity of trehalose analogues in Mycobacterium smegmatis
作者:Jeffrey M. Wolber、Bailey L. Urbanek、Lisa M. Meints、Brent F. Piligian、Irene C. Lopez-Casillas、Kailey M. Zochowski、Peter J. Woodruff、Benjamin M. Swarts
DOI:10.1016/j.carres.2017.08.003
日期:2017.10
synthesized using our previously reported one-step chemoenzymatic method and shown to inhibitgrowth and biofilm formation in the two-to three-digit micromolar range in Mycobacterium smegmatis. The trehalose-specific ABC transporter LpqY-SugABC was essential for antimicrobial and anti-biofilm activity, suggesting that inhibition by monosubstituted trehalose analogues requires cellular uptake and does not proceed
Compositions for improving the health and appearance of skin
申请人:Algenist Holdings, Inc.
公开号:US10231907B2
公开(公告)日:2019-03-19
Provided herein are microalgal skin care compositions and methods of improving the health and appearance of skin. Also provided are methods of using polysaccharides for applications such as topical personal care products, cosmetics, and wrinkle reduction compositions. The invention also provides novel decolorized microalgal compositions useful for improving the health and appearance of skin. The invention also includes insoluble polysaccharide particles for application to human skin.