Abstract
Abstract: Golgi‐enriched fractions were prepared from brainstems of 17‐day‐old rats by first floating off myelin, then fractionating the remaining pellet by a series of differential and density gradient centrifugations in sucrose. Fractions enriched in Golgi membranes were recovered at 0.46/0.76 m and 0.76/0.87 m interfaces on the final sucrose gradient as indicated by morphology and the biochemical markers thiamine pyrophosphatase and [3H]fucose‐labeled glycoprotein. Morphology of the two fractions indicated very little contamination with myelin lamellae; however, the presence of significant levels of 2′, 3′‐cyclic nucleotidase in the lighter fraction suggested a contribution from oligodendroglial or myelin‐related membranes. Cerebroside sulfotransferase was highly enriched in the lighter Golgi‐enriched fraction relative to the denser fraction, the post‐34, 880 x g microsomes, and the myelin‐like fraction. In contrast, ceramide galactosyl transferase was more evenly distributed among the fractions. Our results show a more highly localized distribution of sulfatide synthesis than of galactocerebroside synthesis, probably in Golgi membranes or oligodendroglia‐related membranes with similar properties.
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Dates
Type | When |
---|---|
Created | 18 years, 10 months ago (Oct. 5, 2006, 8:08 a.m.) |
Deposited | 1 year, 9 months ago (Nov. 4, 2023, 3:59 a.m.) |
Indexed | 4 months, 3 weeks ago (April 8, 2025, 6:44 a.m.) |
Issued | 43 years, 7 months ago (Jan. 1, 1982) |
Published | 43 years, 7 months ago (Jan. 1, 1982) |
Published Online | 18 years, 10 months ago (Oct. 5, 2006) |
Published Print | 43 years, 7 months ago (Jan. 1, 1982) |
@article{Benjamins_1982, title={Cerebroside Sulfotransferase in Golgi‐Enriched Fractions from Rat Brain}, volume={38}, ISSN={1471-4159}, url={http://dx.doi.org/10.1111/j.1471-4159.1982.tb10875.x}, DOI={10.1111/j.1471-4159.1982.tb10875.x}, number={1}, journal={Journal of Neurochemistry}, publisher={Wiley}, author={Benjamins, Joyce A. and Hadden, Timothy and Skoff, Robert P.}, year={1982}, month=jan, pages={233–241} }