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  • 1
    Electronic Resource
    Electronic Resource
    Expression of carbohydrate epitopes L2/HNK-1 and L3 in the larva and imago of Drosophila melanogaster and Calliphora vicina (1991)
    Springer
    Cell & tissue research 265 (1991), S. 589-600 
    Details
    ISSN: 1432-0878
    Keywords: L2/HNK-1 carbohydrate epitope ; L3 carbohydrate epitope ; Immunohistochemistry ; Extracellular matrix ; Calliphora vicina (Insecta) ; Drosophila melanogaster (Insecta)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The carbohydrate epitopes L2/HNK-1 and L3 belong to two overlapping families of adhesion molecules in the vertebrate, and probably the invertebrate nervous systems. To investigate their pattern of expression during the development of insects, cryosections of late third instar larvae and imagoes of Drosophila melanogaster and Calliphora vicina were studied by indirect immunofluorescence using several monoclonal antibodies to the L2/HNK-1 and one monoclonal antibody to the L3 epitope. Each monoclonal antibody to the L2/HNK-1 epitope showed a different immunohistological staining pattern, which differed from that of the L3 monoclonal antibody. In both insect species the immunohistological staining patterns for the two carbohydrate epitopes were similar at the two developmental stages, with immunoreactivity not confined to the nervous system. In larvae, immunoreactivities of the monoclonal antibodies L2.334 and L3.492 were predominantly associated with the extracellular matrix as indicated by co-localization with laminin, particularly in the imaginal discs, while L2.349 revealed a more cell surface-associated distribution. In imagoes, immunoreactivities were detectable in most organs studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00340883
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structural analysis of neutral glycosphingolipids from Ascaris suum adults (Nematoda: Ascaridida) (1997)
    Springer
    Glycoconjugate journal 14 (1997), S. 389-399 
    Details
    ISSN: 1573-4986
    Keywords: arthro-series glycosphingolipids ; Ascaris suum ; (iso-branched) C17 sphingoid-bases ; neutral glycosphingolipids ; parasitic nematodes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The neutral glycosphingolipid fraction from adults of the pig parasitic nematode, Ascaris suum, was resolved into four components on thin-layer chromatography. The high-performance liquid chromatography-isolated components were structurally analysed by: methylation analysis; exoglycosidase cleavage; gas-liquid chromatography/mass spectrometry; liquid secondary-ion mass spectrometry; and, in particular, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Their chemical structures were determined as: Glc(β1-1)ceramide, Man(β1-4)Glc(β1-1)ceramide, GlcNAc(β1-3)Man(β1-4)Glc(β1-1)ceramide and Gal(α1-3)GalNAc(β1-4)GlcNAc(β1-3)Man(β1-4)Glc(β1-1)ceramide; and were characterized as belonging to the arthro-series of protostomial glycosphingolipids. No glycosphingolipid component corresponding to ceramide tetrasaccharide was detected during these analyses. The ceramide composition of the parent glycosphingolipids was dominated by the 2-(R)-hydroxy C24:0 fatty acid, cerebronic acid, and C17 sphingoid-bases: 15-methylhexadecasphing-4-enine and 15-methylhexadecaphinganine in approximately equal proportions. The component ceramide monohexoside was characterized by an additional 15-methylhexadecaphytosphingosine. Abbreviations: CDH, ceramide dihexoside; Cer, ceramide; CMH, ceramide monohexoside; CPH, ceramide pentahexoside; CTH, ceramide trihexoside; CTetH, ceramide tetrahexoside; Hex, hexose; HexNAc, N-acetylhexosamine; HPTLC, high-performance thin-layer chromatography; LSIMS, liquid secondary-ion mass spectrometry; MALDI-TOF-MS, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry; N-, Nz- and A-glyco(sphingo)lipids, neutral, neutralzwitterionic and acidic glyco(sphingo)lipids, respectively
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018530914067
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  • 3
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    Expression of carbohydrate epitopes L2/HNK-1 and L3 in the larva and imago of Drosophila melanogaster and Calliphora vicina (1991)
    Springer
    Details
    Publication Date: 1991-09-01
    Print ISSN: 0302-766X
    Electronic ISSN: 1432-0878
    Topics: Biology , Medicine
    Published by Springer
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