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  • 1
    ISSN: 1573-4986
    Keywords: metabolic disorder ; ALG3 ; ALG6 ; DPM1 ; MPI ; MGAT2 ; PMM2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract During the last few years, progress in identifying the molecular defects of the carbohydrate-deficient glycoprotein syndromes has been very rapid. Up to this date, six different gene defects have been elucidated. The plethora of defects that will eventually be identified makes it indispensable to use a simple and straightforward nomenclature for this group of diseases. A group of specialists in this field met for a round-table discussion at the “First International Workshop on CDGS” in Leuven, Belgium, November 12–13, 1999, and came up with the following recommendations. 1. CDG stands for “Congenital Disorders of Glycosylation”. 2. The disorders are divided into groups, based on the biochemical pathway affected: group I refers to defects in the initial steps of N-linked protein glycosylation. These deficiencies affect the assembly of dolichylpyrophosphate linked oligosaccharide and/or its transfer to asparagine residues on the nascent polypeptides; group II refers to defects in the processing of protein-bound glycans or the addition or other glycans to the protein. This grouping no longer refers directly to the isoelectric focusing pattern of serum transferrins or other serum glycoproteins. 3. CDG types are assigned to one of the groups and will be numbered consecutively as they are identified: Ia, Ib,...[emsp4 ], IIa, IIb,...[emsp4 ], etc. The currently distinguished types are: CDG-Ia (PMM2[emsp4 ]), CDG-Ib (MPI[emsp4 ]), CDG-Ic (ALG6[emsp4 ]), CDG-Id (ALG3[emsp4 ]), CDG-Ie (DPM1), CDG-IIa (MGAT2[emsp4 ]). 4. No new designations will be made unless the genetic defect is established. Untyped cases are considered “x” cases (CDG-x) until the genetic defect is known.
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2013-10-23
    Description: Breast milk oligosaccharides shape the intestinal environment by affecting mucosal immunity and bacterial colonization. To clarify the role of milk oligosaccharide sialyl(α2,3)lactose (3SL) in intestinal physiology and disease, we investigated colitis development in Il10−/− mice exposed to normal or 3SL-deficient milk during lactation. Onset and progression of intestinal inflammation were...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 3
    Publication Date: 2014-06-26
    Description: Acanthamoeba polyphaga mimivirus is a member of the giant nucleocytoplasmic large DNA viruses, infecting various Acanthamoeba spp. The genomes of giant viruses encode components previously thought to be exclusive to cellular life, such as proteins involved in nucleic acid and protein synthesis. Recent work on enzymes involved in carbohydrate biosynthesis and metabolism show that instead of utilizing host cell resources, Mimivirus produces its own glycosylation machinery. To obtain a more detailed view of glycosylation in Mimivirus, we developed a periodate oxidation-based method to selectively enrich Mimivirus surface glycoproteins. O-Glycosylation in Mimivirus glycoproteins was identified by permethylation and matrix-assisted laser desorption/ionization-mass spectrometry analyses of beta-eliminated glycans. We sequenced 26 previously undescribed O-glycans, most of which contain glucose as their reducing end saccharide. These data will facilitate future studies on the functional significance of glycosylation in Mimivirus.
    Print ISSN: 0959-6658
    Electronic ISSN: 1460-2423
    Topics: Biology , Medicine
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