| Literature DB >> 159275 |
M Mareel, C Dragonetti, G Dacremont.
Abstract
HeLa cells, labeled with Na235SO4, release into the culture medium 35SO4 bound to plasma membrane vesicles next to 35SO4-glycoproteins and free 35SO4. Plasma membrane vesicles, experimentally produced by treatment with formaldehyde, contain 35SO4 and their surface can be stained with high iron diamine. Scanning of chromatograms of the trypsinate from labeled cells demonstrates radioactivity on the spot of heparan sulfate. It is concluded that HeLa cells synthesize heparan sulfate, which is incorporated at the plasma membrane and released by shedding of small vesicles.Entities:
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Year: 1979 PMID: 159275 DOI: 10.1007/bf00644547
Source DB: PubMed Journal: Histochemistry ISSN: 0301-5564