Publication Date:
2000-03-24
Description:
Selective microtubule orientation toward spatially defined cortical sites is critical to polarized cellular processes as diverse as axon outgrowth and T cell cytotoxicity. In yeast, oriented cytoplasmic microtubules align the mitotic spindle between mother and bud. The cortical marker protein Kar9 localizes to the bud tip and is required for the orientation of microtubules toward this region. Here, we show that Kar9 directs microtubule orientation by acting through Bim1, a conserved microtubule-binding protein. Bim1 homolog EB1 was originally identified through its interaction with adenomatous polyposis coli (APC) tumor suppressor, raising the possibility that an APC-EB1 linkage orients microtubules in higher cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korinek, W S -- Copeland, M J -- Chaudhuri, A -- Chant, J -- GM07620-19/GM/NIGMS NIH HHS/ -- GM07620-20/GM/NIGMS NIH HHS/ -- GM49782/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 2000 Mar 24;287(5461):2257-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, 7 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10731146" target="_blank"〉PubMed〈/a〉
Keywords:
Adenomatous Polyposis Coli Protein
;
Cell Cycle Proteins/genetics/*metabolism
;
Cell Nucleus/physiology
;
Cytoskeletal Proteins/metabolism
;
Microtubule Proteins/genetics/*metabolism
;
Microtubule-Associated Proteins/metabolism
;
Microtubules/metabolism/*physiology
;
Mutation
;
Nuclear Proteins/genetics/*metabolism
;
Phenotype
;
Protein Binding
;
Recombinant Fusion Proteins/metabolism
;
Saccharomyces cerevisiae/cytology/genetics/*physiology
;
*Saccharomyces cerevisiae Proteins
;
Spindle Apparatus/*physiology
;
Two-Hybrid System Techniques
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
