Publication Date:
2006-01-21
Description:
The stable propagation of genetic material during cell division depends on the congression of chromosomes to the spindle equator before the cell initiates anaphase. It is generally assumed that congression requires that chromosomes are connected to the opposite poles of the bipolar spindle ("bioriented"). In mammalian cells, we found that chromosomes can congress before becoming bioriented. By combining the use of reversible chemical inhibitors, live-cell light microscopy, and correlative electron microscopy, we found that monooriented chromosomes could glide toward the spindle equator alongside kinetochore fibers attached to other already bioriented chromosomes. This congression mechanism depended on the kinetochore-associated, plus end-directed microtubule motor CENP-E (kinesin-7).〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4768465/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4768465/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kapoor, Tarun M -- Lampson, Michael A -- Hergert, Polla -- Cameron, Lisa -- Cimini, Daniela -- Salmon, E D -- McEwen, Bruce F -- Khodjakov, Alexey -- GM06627/GM/NIGMS NIH HHS/ -- GM24364/GM/NIGMS NIH HHS/ -- GM59363/GM/NIGMS NIH HHS/ -- GM65933/GM/NIGMS NIH HHS/ -- R01 GM024364/GM/NIGMS NIH HHS/ -- R01 GM059363/GM/NIGMS NIH HHS/ -- R37 GM024364/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2006 Jan 20;311(5759):388-91.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemistry and Cell Biology, Rockefeller University, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16424343" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Aurora Kinases
;
Cell Line
;
Chromosomal Proteins, Non-Histone/physiology
;
Chromosomes, Mammalian/*physiology/ultrastructure
;
HeLa Cells
;
Humans
;
Indoles/pharmacology
;
Kinesin/antagonists & inhibitors
;
Kinetochores/*physiology/ultrastructure
;
Metaphase
;
Microscopy, Confocal
;
Microscopy, Electron
;
Microscopy, Interference
;
Microscopy, Video
;
Microtubules/*physiology/ultrastructure
;
*Mitosis
;
Molecular Motor Proteins/physiology
;
Movement
;
Potoroidae
;
Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism
;
Pyrimidines/pharmacology
;
RNA Interference
;
RNA, Small Interfering
;
Spindle Apparatus/*physiology/ultrastructure
;
Sulfonamides/pharmacology
;
Thiones/pharmacology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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