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Sulfation and phosphorylation of the neural cell-adhesion molecule, n-cam

Academic Article
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Overview

authors

  • Sorkin, B. C.
  • Hoffman, S.
  • Edelman, Gerald
  • Cunningham, Bruce

publication date

  • 1984

journal

  • Science  Journal

abstract

  • Embryonic chicken brain tissue cultured in media containing 35S-labeled sulfate or 32P-labeled phosphate incorporated 35S or 32P into the neural cell adhesion molecule (N-CAM). The 35S label was located in asparagine-linked carbohydrates on both glycopeptides (molecular weights, 170,000 and 140,000) but not in the sialic acid. The 32P label was detected in phosphoamino acids in the carboxyl-terminal third of both polypeptides, but the ratio of phosphoserine to phosphothreonine differed in the two species. The sulfated saccharides and phosphoamino acids may provide additional sites for functional control of N-CAM.

subject areas

  • Animals
  • Antigens, Surface
  • Brain
  • Cell Adhesion Molecules
  • Chick Embryo
  • Glycopeptides
  • In Vitro Techniques
  • Phosphates
  • Phosphorylation
  • Phosphoserine
  • Phosphothreonine
  • Sialic Acids
  • Sulfates
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Identity

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.6474186

PubMed ID

  • 6474186
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Additional Document Info

start page

  • 1476

end page

  • 1478

volume

  • 225

issue

  • 4669

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