Glycoproteins from the hamster respiratory tract and their response to vitamin A

F. Bonanni, S. S. Levinson, G. Wolf, Luigi M De Luca

Research output: Contribution to journalArticle

Abstract

1. 1. Lung and tracheal glycopeptides were isolated from hamsters after tissues were incubated with labeled sugar precursors. The uptake of labeled glucosamine and fucose into the glycopeptides isolated from lung was not affected by either deficiency or excess of vitamin A. On the other hand, in vitamin A deficiency, trachea showed a markedly lower incorporation of [3H]fucose into one glycopeptide fraction eluted by 0.2 M LiCl from DEAE-Sephadex. 2. 2. This fraction did not respond to excess retinyl palmitate feeding, but its labeled fucose uptake increased by more than 100% when the animals were fed excess retinoic acid for 6 weeks. 3. 3. Recovery to normal levels of the depressed [3H]fucose uptake into the 0.2 M fraction occured within 1-2 days after feeding vitamin A to deficient hamsters. 4. 4. Further purification of this 0.2 M fraction on Sephadex G-75 yielded several [14C]glucosamine-containing components, only one of which component [3H]fucose. Uptake of both [14C]glucosamine and [3H]fucose into this component was greatly reduced in vitamin A deficiency. Further purification of this component on Sephadex G-75 and on Sephadex G-50, yielded a single, [3H]fucose-containing peak that contained mannose, galactose, hexosamines, fucose, and sialic acid in the ratio 1 : 1.6 : 2.7 : 0.1 : 0.1. The homogeneity of this peak was confirmed by polyacrylamide gel electrophoresis.

Original languageEnglish (US)
Pages (from-to)441-451
Number of pages11
JournalBiochimica et Biophysica Acta - General Subjects
Volume297
Issue number2
DOIs
StatePublished - Feb 28 1973
Externally publishedYes

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Fucose
Vitamin A
Cricetinae
Respiratory System
Glycoproteins
Glycopeptides
Glucosamine
Vitamin A Deficiency
Purification
Hexosamines
DEAE-Dextran
Lung
N-Acetylneuraminic Acid
Mannose
Tretinoin
Trachea
Electrophoresis
Galactose
Sugars
Polyacrylamide Gel Electrophoresis

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Molecular Biology
  • Medicine(all)

Cite this

Glycoproteins from the hamster respiratory tract and their response to vitamin A. / Bonanni, F.; Levinson, S. S.; Wolf, G.; De Luca, Luigi M.

In: Biochimica et Biophysica Acta - General Subjects, Vol. 297, No. 2, 28.02.1973, p. 441-451.

Research output: Contribution to journalArticle

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