Results 191 to 200 of about 137,810 (238)
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Trends in Biochemical Sciences, 2005
Anaphase is the stage of the cell cycle in which duplicated chromosomes separate and move towards opposite poles of the cell. Although its chromosome movements have always been viewed as majestic, until recently anaphase lacked obvious landmarks of regulation.
Armand, de Gramont, Orna, Cohen-Fix
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Anaphase is the stage of the cell cycle in which duplicated chromosomes separate and move towards opposite poles of the cell. Although its chromosome movements have always been viewed as majestic, until recently anaphase lacked obvious landmarks of regulation.
Armand, de Gramont, Orna, Cohen-Fix
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Nocodazole pretreatment in anaphase selectively reduces anaphase B in PtK1 cells
Cell Motility, 1983AbstractDuring early anaphase PtK1 cells were briefly treated with the rapidly reversible microtubule (MT) poison nocodazole. This treatment abruptly stopped chromosome motion and effected a large decrease in spindle birefringence. On removal of the drug, chromosome to pole motion (anaphase A) returned, though at a lesser rate but not extent than ...
J A, Snyder, S I, Vogt, S L, McLelland
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The mechanism of anaphase spindle elongation
BioEssays, 1989AbstractAt anaphase chromosomes move to the spindle poles (anaphase A) and the spindle poles move apart (anaphase B). In vitro studies using isolated diatom spindles demonstrate that the primary mechano‐chemical event responsible for spindle elongation is the sliding apart of half‐spindle microtubules.
W Z, Cande, C J, Hogan
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Chromosome errors at mitotic anaphase
Genome, 1992Errors in mitotic divisions were assayed using various satellite DNAs as probes, hybridized in situ, to show that they included nondisjunction, chromosome and chromatid lagging, chromatid malsegregation, and monopolar segregations. The total rates of error were 1.7, 1.1, and 0.6% for chromosomes X, 17, and 18, respectively. Lagging was the most common
J H, Ford, A T, Correll
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'Anaphase' and cytokinesis in the absence of chromosomes
Nature, 1996Anaphase and cytokinesis are key processes in the segregation of replicated chromosomes to the daughter cells: in anaphase, chromosomes move apart; in cytokinesis, a cleavage furrow forms midway between the separated chromosomes. Some evidence suggests that chromosomes may be involved both in controlling the timing of anaphase onset and in dictating ...
D, Zhang, R B, Nicklas
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Anaphase Inactivation of the Spindle Checkpoint
Science, 2006The spindle checkpoint delays cell cycle progression until microtubules attach each pair of sister chromosomes to opposite poles of the mitotic spindle. Following sister chromatid separation, however, the checkpoint ignores chromosomes whose kinetochores are attached to only one spindle pole, a state that activates the checkpoint prior to metaphase. We
William J, Palframan +4 more
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Cell, 1982
Permeabilized PtK1 cells continue to undergo anaphase chromosome movements provided MgATP is included in the lysis medium. However, chromosome-to-pole movement (anaphase A) and spindle elongation (anaphase B) differ with respect to nucleotide requirements.
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Permeabilized PtK1 cells continue to undergo anaphase chromosome movements provided MgATP is included in the lysis medium. However, chromosome-to-pole movement (anaphase A) and spindle elongation (anaphase B) differ with respect to nucleotide requirements.
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Rephrasing anaphase: separase FEARs shugoshin
Chromosoma, 2005Cleavage of the ring-like cohesin complex by separase triggers segregation of sister chromatids in anaphase. This simplistic model has recently been extended by exciting discoveries on three levels: regulation of anaphase by posttranslational modifications and the cohesin protector shugoshin; non-proteolytic roles of separase; and cohesin-independent ...
Stemmann, Olaf +2 more
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Enzymology of the Anaphase‐Promoting Complex
2005The anaphase-promoting complex (APC) is an ubiquitin-protein ligase that promotes mitotic progression by catalyzing the ubiquitination of numerous proteins, including securin and cyclin. Its complex subunit composition and extensive regulation make the APC an active subject of investigation for both cell biologists and enzymologists.
Christopher W, Carroll, David O, Morgan
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Cohesin and Cdk1: an anaphase barricade
Nature Cell Biology, 2010Separation of sister chromatids at anaphase in metazoan cells requires only the cleavage of the kleisin subunit of centromeric cohesin, but efficient poleward movement of separated sisters requires the associated loss in Cdk1 activity. Activation of the anaphase-promoting complex/cyclosome ensures these events are coordinated.
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