We describe here a new member of the kinesin superfamily in Drosophila, KLP3A (Kinesin Like-Protein-at-3A). The KLP3A protein localizes to the equator of the central spindle during late anaphase and telophase of male meiosis. Mutations in the KLP3A gene disrupt the interdigitation of microtubules in spermatocyte central spindles. Despite this defect, anaphase B spindle elongation is not obviously aberrant. However, cytokinesis frequently fails after both meiotic divisions in mutant testes. Together, these findings strongly suggest that the KLP3A presumptive motor protein is a critical component in the establishment or stabilization of the central spindle. Furthermore, these results imply that the central spindle is the source of signals that initiate the cleavage furrow in higher cells.

THE DROSOPHILA KINESIN-LIKE PROTEIN KLP3A IS A MIDBODY COMPONENT REQUIRED FOR CENTRAL SPINDLE ASSEMBLY AND INITIATION OF CYTOKINESIS / B. C., Williams; M. F., Riedy; E. V., Williams; Gatti, Maurizio; M. L., Goldberg. - In: THE JOURNAL OF CELL BIOLOGY. - ISSN 0021-9525. - STAMPA. - 129:3(1995), pp. 709-723. [10.1083/jcb.129.3.709]

THE DROSOPHILA KINESIN-LIKE PROTEIN KLP3A IS A MIDBODY COMPONENT REQUIRED FOR CENTRAL SPINDLE ASSEMBLY AND INITIATION OF CYTOKINESIS

GATTI, MAURIZIO;
1995

Abstract

We describe here a new member of the kinesin superfamily in Drosophila, KLP3A (Kinesin Like-Protein-at-3A). The KLP3A protein localizes to the equator of the central spindle during late anaphase and telophase of male meiosis. Mutations in the KLP3A gene disrupt the interdigitation of microtubules in spermatocyte central spindles. Despite this defect, anaphase B spindle elongation is not obviously aberrant. However, cytokinesis frequently fails after both meiotic divisions in mutant testes. Together, these findings strongly suggest that the KLP3A presumptive motor protein is a critical component in the establishment or stabilization of the central spindle. Furthermore, these results imply that the central spindle is the source of signals that initiate the cleavage furrow in higher cells.
1995
01 Pubblicazione su rivista::01a Articolo in rivista
THE DROSOPHILA KINESIN-LIKE PROTEIN KLP3A IS A MIDBODY COMPONENT REQUIRED FOR CENTRAL SPINDLE ASSEMBLY AND INITIATION OF CYTOKINESIS / B. C., Williams; M. F., Riedy; E. V., Williams; Gatti, Maurizio; M. L., Goldberg. - In: THE JOURNAL OF CELL BIOLOGY. - ISSN 0021-9525. - STAMPA. - 129:3(1995), pp. 709-723. [10.1083/jcb.129.3.709]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/7198
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