H2SO4-silica-promoted ‘on-column’ removal of benzylidene, isopropylidene, trityl and tert-butyldimethylsilyl groups
作者:Bimalendu Roy、Priya Verma、Balaram Mukhopadhyay
DOI:10.1016/j.carres.2008.10.003
日期:2009.1
H2SO4-silica-promoted removal of benzylidene, isopropylidene, trityl and tert-butyldimethylsilyl groups from sugar derivatives was accomplished by following an 'on-column' Protocol in a virtually waste-free condition. (C) 2008 Elsevier Ltd. All rights reserved.
Expression and initial characterization of WbbI, a putative<scp>d</scp>-Galf:α-<scp>d</scp>-Glc β-1,6-galactofuranosyltransferase from Escherichia coli K-12
作者:Corin Wing、James C. Errey、Balaram Mukhopadhyay、John S. Blanchard、Robert A. Field
DOI:10.1039/b609455d
日期:——
Cloning of E. coli K-12 orf8 (wbbI) and over-expression of the corresponding enzyme as a maltose-binding fusion protein provided recombinant WbbI β-1,6-galactofuranosyltransferase activity. Challenged with synthetic acceptor analogues in the presence of UDP-galactofuranose as a donor, WbbI showed a modest preference for pyranoside acceptor substrates of the α-D-gluco-configuration but it also possessed the ability to turn-over acceptor analogues.