Glcnac-Sulfate-Phosphate-Percent-Mannose-Oligosaccharides-Glcnac-Position-Decreases-Development-Decrease-Transferase-Activity-i

Similarly, the changes in the size of asparagine-linked oligosaccharides synthesized during development correlate well with the appearance of MI and MII activities and suggest that these developmentally regulated alpha-mannosidase activities function in the processing of these oligosaccharides. This is supported further by the observation that oligosaccharide processing was inhibited in late stage cells labeled in the presence of either Structural analysis of sulfated N-linked oligosaccharides in erythropoietin.We previously demonstrated that high-performance liquid chromatography with electrospray ionization mass spectrometry (LCMS) equipped with a graphitized carbon column (GCC) is useful for the structural analysis of carbohydrates in glycoproteins. Using LCMS with GCC, sulfated N-linked oligosaccharides were found in erythropoietin (EPO) expressed in baby hamster kidney cells. Sulfation occurs in a part of the N-linked oligosaccharides in the EPO. Sulfated monosaccharide residue in the sulfated N-linked oligosaccharide was determined by exoglycosidase digestion followed by sugar mapping by LCMS.

The linkage position and branch-location of the sulfate group in the tetraantennary oligosaccharide were analyzed by (1)H-nuclear magnetic resonance. It was suggested that sulfation occurs on the C-6 position of GlcNAc located in the Response of the ileum transcriptome to fructo-oligosaccharides in Taiping The aim of this study was to investigate the effects of fructo-oligosaccharide its stimulating effects on ileum. 1 healthy chickens were randomly divided into two groups; control group (CT) and fructo-oligosaccharides group (FOS). At the th day of age, ileum mucosa of three chickens per group were collected and performed transcriptome profiling of Taiping chicken ileum mucosa using the Hiseq™ 20 sequencing platform. Compared with CT group, genes were differentially expressed in the FOS group. 2'-Fucose lactose of the differently expressed genes were further validated by RT-qPCR. In Oligosaccharides , gene ontology and Kyoto encyclopedia of genes and genomes analyses revealed that these differentially expressed genes were mainly enriched to drug metabolism-cytochrome P4, metabolism of xenobiotics by cytochrome P4, retinol metabolism, fat digestion and absorption, herpes simplex infection and valine, leucine and isoleucine biosynthesis.

The results of this study provided the help to our understanding application of fructo-oligosaccharides in indigenous chicken production and provide a theoretical basis for the genetic development of indigenous chickens.Rapid detection of malto-oligosaccharide-forming bacterial amylases by high performance anion-exchange chromatography.High performance anion-exchange chromatography with pulsed amperometric detection was applied for the rapid analysis of malto-oligosaccharides formed by extracellular enzyme preparations from 49 starch-degrading bacterial strains isolated from soil and compost samples. Malto-oligosaccharide-forming amylases, indicated by a predominant formation of maltohexaose from starch, were produced by enzyme preparations from four of the isolates growing at pH 7 and .Carbohydrate structures of HVJ (Sendai virus) glycoproteins.The carbohydrate structures of two membrane glycoproteins (HANA protein and F protein) of HVJ have been determined on materials purified from virions grown in the allantoic sac of embryonated chicken eggs. Both glycoproteins contain fucose, mannose, galactose, and glucosamine but not galactosamine, indicating that their sugar chains are exclusively of the asparagine-linked type.

The radioactive oligosaccharide fractions obtained from the two glycoproteins by hydrazinolysis followed by NaB[3H]4 reduction gave quite distinct fractionation patterns after paper electrophoresis. More than 75% of the oligosaccharides from F protein were acidic and separated into at least four components by paper electrophoresis. Only 18% of the oligosaccharide from HANA protein was an acidic single component. These acidic oligosaccharides could not be converted to neutral oligosaccharides by sialidase digestion. Structural studies of the neutral oligosaccharide fractions from HANA and F proteins revealed that both of them are mixtures of a series of high mannose type oligosaccharides and of complex type oligosaccharides with Gal beta 1 leads to (Fuc alpha 1 leads to 3) GlcNAc group in their outer chain moieties.