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Die Konstitution der Ganglio‐N‐tetraose und des Gangliosids GI

Kuhn, Richard, Wiegandt, Herbert·1963·Chemische Berichte

Abstract

Aus Rinder‐ und Menschenhirn wurden fünf Ganglioside isoliert, die je 1 Mol. Glucose, 2 Moll. Galaktose und 1 Mol. N‐Acetyl‐galaktosamin enthalten. Das aus diesen vier Zuckern aufgebaute Tetrasaccharid (Ganglio‐N‐tetraose) ließ sich in Substanz gewinnen und seine Struktur klären; dabei wurden auch beide Trisaccharide (Ganglio‐N‐triose I und II) sowie alle drei Disaccharide (Ganglio‐N‐biose I und II, Lactose) erhalten, die am Aufbau des Tetrasaccharids beteiligt sind. – Die Ganglioside G II und G III, die je 2 Moll. Lactaminsäure (N‐Acetylneuraminsäure) enthalten, und das Gangliosid G IV werden durch RDE (Neuraminidase) nur bis zum Gangliosid G I abgebaut. Die Unspaltbarkeit des letzteren (Formel S. 875) wird darauf zurückgeführt, daß des Ferment die ketosidische Bindung an C‐;3 nicht zu lösen vermag, wenn sich an C‐;4 des Galaktoserestes (in cis‐Stellung) der raumbeanspruchende Rest der Ganglio‐ N‐biose I befindet. Die aus dem unspaltbaren Gangliosid G I erhaltene 3‐Lactaminyl‐galaktose ist durch RDE leicht spaltbarDie hauptsächlichen Ergebnisse dieser Arbeit wurden vorgetragen von R. KUHN auf dem Internat. Symposium on Carbohydrate Chemistry in Birmingham, England, am 17. July 1962 .

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Metadata

Authors
Kuhn, R., & Wiegandt, H.
Venue
Chemische Berichte
Publisher
Wiley
Published
1963-03
Volume
96
Issue
3
Pages
866-880
ISSN
0009-2940 (ISSN-L)
OpenAlex
W1981025721
Cited by
293
References
0
FWCI
10.90
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Die Konstitution der Ganglio‐N‐tetraose und des Gangliosids GI. https://app.cochat.ai/papers/10.1002/cber.19630960329
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Kuhn, R., & Wiegandt, H. (1963). Die Konstitution der Ganglio‐N‐tetraose und des Gangliosids GI. Chemische Berichte. https://doi.org/10.1002/cber.19630960329

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