DOI: 10.1083/jcb.134.2.429. gamma-Tubulin-like Tub4p of Saccharomyces cerevisiae is associated with the spindle pole body substructures that organize microtubules and is required for mitotic spindle formation.

gamma-Tubulin-like Tub4p of Saccharomyces cerevisiae is associated with the spindle pole body substructures that organize microtubules and is required for mitotic spindle formation.

10.1083/jcb.134.2.429

Crossref journal-article

Rockefeller University Press

The Journal of cell biology (291)

Abstract

Tub4p is a novel tubulin in Saccharomyces cerevisiae that most closely resembles gamma-tubulin. We report in this manuscript that the essential Tub4p is associated with the inner and outer plaques of the yeast microtubule organizing center, the spindle pole body (SPB). These SPB substructures are involved in the attachment of the nuclear and cytoplasmic microtubules, respectively (Byers, B., and L. Goetsch. 1975. J. Bacteriol. 124:511-523). Study of a temperature sensitive tub4-1 allele revealed that TUB4 has essential functions in microtubule organization. Remarkably, SPB duplication and separation are not impaired in tub4-1 cells incubated at the nonpermissive temperature. However, SPBs from such cells contain less or misdirected nuclear microtubules. Further analysis revealed that tub4-1 cells are able to assemble a short bipolar spindle, suggesting that the defect in microtubule organization occurs after spindle formation. A role of Tub4p in microtubule organization is further suggested by an increase in chromosome loss in tub4-1 cells. In addition, cell cycle arrest and survival of tub4-1 cells is dependent on the mitotic checkpoint control gene BUB2 (Hoyt, M.A., L. Totis, B.T. Roberts. 1991. Cell. 66:507-517), one of the cell's monitors of spindle integrity.

Bibliography

Spang, A., Geissler, S., Grein, K., & Schiebel, E. (1996). gamma-Tubulin-like Tub4p of Saccharomyces cerevisiae is associated with the spindle pole body substructures that organize microtubules and is required for mitotic spindle formation. The Journal of Cell Biology, 134(2), 429â441.

Authors 4

A Spang (first)
S Geissler (additional)
K Grein (additional)
E Schiebel (additional)

References 0 Referenced 123

None

Dates

Type	When
Created	21 years, 3 months ago (May 14, 2004, 9:23 p.m.)
Deposited	2 years, 1 month ago (July 22, 2023, 2:24 a.m.)
Indexed	9 months, 1 week ago (Nov. 19, 2024, 10:51 a.m.)
Issued	29 years, 1 month ago (July 15, 1996)
Published	29 years, 1 month ago (July 15, 1996)
Published Online	29 years, 1 month ago (July 15, 1996)
Published Print	29 years, 1 month ago (July 15, 1996)

Funders 0

None

BibTeX

@article{Spang_1996, title={gamma-Tubulin-like Tub4p of Saccharomyces cerevisiae is associated with the spindle pole body substructures that organize microtubules and is required for mitotic spindle formation.}, volume={134}, ISSN={1540-8140}, url={http://dx.doi.org/10.1083/jcb.134.2.429}, DOI={10.1083/jcb.134.2.429}, number={2}, journal={The Journal of cell biology}, publisher={Rockefeller University Press}, author={Spang, A and Geissler, S and Grein, K and Schiebel, E}, year={1996}, month=jul, pages={429–441} }

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