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Cited by 220Glycosylation and Glycoproteins ResearchCarbohydrate Chemistry and SynthesisViral Infectious Diseases and Gene Expression in Insects

The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.

Isolation of wheat germ agglutinin-resistant clones of Chinese hamster ovary cells deficient in membrane sialic acid and galactose

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Briles, E B, Li, E, Kornfeld, S·1977·Journal of Biological Chemistry
DOI 10.1016/s0021-9258(19)75213-2
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Abstract

Several clones of Chinese hamster ovary cells have been selected for their resistance to the toxic effects of wheat germ agglutinin. The clones do not bind wheat germ agglutinin as well as parent cells and are 5- to 250-fold more resistant to the toxic effects of the lectin. Of three clones studied in detail, all exhibit a decrease in wheat germ agglutinin binding affinity. Two have normal numbers of wheat germ agglutinin binding sites, while one (Clone 13) has a 65% decrease in binding sites. Crude membrane preparations of the clones have a decrease in sialic acid content relative to parent cells, and Clone 13 membranes are also deficient in galactose, while the mannose and hexosamine contents of all three clones are normal. The membrane sugar deficiencies affect both glycoproteins and glycolipids. Sialyl-lactosylceramide is the major glycolipid in parent cells, while Clones 1 and 1021 have lactosylceramide and Clone 13 has glucosylceramide as the predominant glycolipid. Labeling experiments with N-[G-3H]acetylmannosamine suggest that Clone 1021 cells have a block in the transfer of sialic acid from CMP-sialic acid to glycoprotein and glycolipid acceptors. Yet CMP-sialic acid:glycoprotein sialyl-transferase activity in cell lysates of Clone 1021 cells is 80% of normal. While CMP-sialic acid:lactosylceramide sialyl-transferase activity is only 25% of normal, it can be restored to normal or elevated levels by sodium butyrate induction without an associated increase in cellular sialyl-lactosylceramide content. Similarly, the galactose-deficient Clone 13 can synthesize UDP-galactose and has normal levels of UDP-galactose:glycoprotein galactosyltransferase and UDP-galactose:glucosylceramide galactosyltransferase when assayed in vitro. The glycosyltransferases of both these clones can utilize their own glycoproteins as sugar acceptors in in vitro assays. These data suggest that the variant cells fail to carry out specific glycosyltransferase reactions in vivo despite the fact that they possess the appropriate nucleotide sugars, glycoprotein and glycolipid acceptors, and glycosyltransferases.

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Crossref · 10.1016/s0021-9258(19)75213-2

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Show all 38 references

Research works printed but not linked: 6

  1. Briles, 1976, Fed. Proc., 35, 1642
  2. Stewart, 1973, J. Reticuloendothel. Soc., 14, 332
  3. Hakomori, 1964, J. Biochem. (Tokyo), 55, 205
  4. Hakomori, 1975, Biochim. Biophys. Acta, 417, 55
  5. Schächter, 1974, Biochem. Soc. Symp., 40, 57
  6. Isselbacher, 1972, Proc. Natl. Acad. Sci. U.S.A., 55, 134

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Metadata

Authors
Briles, E. B., Li, E., & Kornfeld, S.
Affiliations
Washington University in St. Louis (US)
ORCID
Kornfeld, S
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1977-02
Volume
252
Issue
3
Pages
1107-1116
ISSN
0021-9258 (ISSN-L)
DOI
10.1016/s0021-9258(19)75213-2
OpenAlex
W1518753545
Cited by
220
References
38
Citations by year
2022: 1 · 2020: 2 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 5 · 2015: 1 · 2014: 1 · 2013: 2 · 2012: 2
FWCI
5.55
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glycosylation and Glycoproteins Research
  • Physical Sciences › Chemistry › Organic Chemistry › Carbohydrate Chemistry and Synthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Viral Infectious Diseases and Gene Expression in Insects
Keywords
wheat germ agglutinin, lectin resistance, CHO cells, sialic acid deficiency, galactose deficiency, membrane glycosylation, sialyltransferase, galactosyltransferase, lactosylceramide, glucosylceramide, glycolipids, glycoproteins, CMP-sialic acid, UDP-galactose, sodium butyrate, lectin affinity, cell surface
MeSH terms
Carbohydrates, Cell Line, Cell Membrane, Cell Separation, Clone Cells, Drug Resistance, Galactose, Galactosyltransferases, Glycolipids, Glycopeptides, Kinetics, Microscopy, Phase-Contrast, Sialic Acids, Sialyltransferases, Species Specificity, Transferases, Lectins

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