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Journal of Neuroscience, Vol 9, 1961-1967, Copyright © 1989 by Society for Neuroscience

ARTICLE

Differential localization of microtubules in cerebellar cells

I Ginzburg, L Behar, UZ Littauer and WS Griffin
Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.

The distribution and subcellular localization of microtubules in rat brain cerebellum was analyzed by immunohistochemistry with antibodies prepared against 3 synthetic peptides corresponding to the C-terminal region of beta-tubulin. The peptides used correspond to amino acid positions 416-425 (peptide 1), 416-431 (peptide 2), and 426-445 (peptide 4). The antibodies thus obtained displayed a remarkable specificity in reacting with different cell types in the rat cerebellum. Antibodies directed against peptide 1 primarily stained Purkinje cells and their dendrites and axons. Peptide 2 antibodies preferentially stained the glomeruli, while antibodies directed against peptide 4 preferentially stained Bergmann glial fibers. These results are discussed in terms of dissimilarities in microtubule organization and masking of epitopes by microtubule-associated proteins (MAPs) in individual cerebellar cells, which may be related to specific functional properties.

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