A chemoenzymatic route to N-acetylglucosamine-1-phosphate analogues: substrate specificity investigations of N-acetylhexosamine 1-kinase
作者:Li Cai、Wanyi Guan、Motomitsu Kitaoka、Jie Shen、Chengfeng Xia、Wenlan Chen、Peng George Wang
DOI:10.1039/b904853g
日期:——
Reports an efficient chemoenzymatic production of an N-acetylhexosamine 1-phophate analogues library by N-acetylhexosamine 1-kinase (NahK) and describes the respective substrate specificity on this enzyme.
were synthesized by means of chlorination with sulfuryl chloride and reduction of the chlorides with tri-n-butyltin hydride. The free sugars thus obtained failed to crystallize except for 6-deoxy and 4,6-dideoxy compounds. Phenyl glycosides were mostly crystalline. The yield of chlorination and reduction was generally high.
A novel D-galactosyl-β1â3-N-acetyl-D-hexosamine phosphorylase cloned from Bifidobacterium infantis (BiGalHexNAcP) was used with a recombinant E. coli K-12 galactokinase (GalK) for efficient one-pot two-enzyme synthesis of T-antigens, galacto-N-biose (Galβ1â3GalNAc), lacto-N-biose (Galβ1â3GlcNAc), and their derivatives.
METHOD AND DEVICE FOR PRODUCING SACCHARIDES AND SACCHARIDE ARRAYS
申请人:Max-Planck-Gesellschaft zur Förderung der
Wissenschaften e.V.
公开号:EP3670521A1
公开(公告)日:2020-06-24
The present invention relates to a method and a device for producing saccharides and saccharide arrays. Said method is particularly useful for the synthesis of saccharides in parallel and of high-density saccharide arrays, such as microarrays, which are required for high-throughput screenings.
申请人:Max-Planck-Gesellschaft zur Förderung der
Wissenschaften e.V.
公开号:EP3719135A1
公开(公告)日:2020-10-07
The present invention relates to an enzyme-catalyzed process for producing GDP-fucose from low-cost substrates guanosine and L-fucose or guanosine and D-Mannose in a single reaction mixture. Said process can be operated (semi)continuously or in batch mode. Further, said process can be adapted to produce fucosylated molecules and biomolecules including glycans, such as human milk oligosaccharides, proteins, peptides, glycoproteins or glycopeptides.