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H Veenstra, P Jacobs and EB Dowdle
South African Medical Research Council Human Cell Biology Research Unit,
University of Cape Town.
A monoclonal antibody VCD-1, directed against the N-terminal intracellular
part of the invariant chain (li) was used to show, by immunoprecipitation
and Western blotting, the unprocessed and processed forms of li in chronic
lymphocytic leukemia (CLL) cells, in Epstein- Barr virus-transformed normal
lymphocytes (EBVL), and in cells of the Raji Burkitt's lymphoma cell line.
Terminal glycosylation and sulphation of li in the Golgi apparatus was
shown in Raji cells and not in EBVL. CLL lymphocytes contain a higher
concentration of p35 li than do EBVL or Raji cells.
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