Results 21 to 30 of about 58,631 (285)
Assembly and Positioning of the Oocyte Meiotic Spindle [PDF]
Annual Review of Cell and Developmental Biology, 2018 Fertilizable eggs develop from diploid precursor cells termed oocytes. Once every menstrual cycle, an oocyte matures into a fertilizable egg in the ovary. To this end, the oocyte eliminates half of its chromosomes into a small cell termed a polar body. The egg is then released into the Fallopian tube, where it can be fertilized.
Mogessie, Binyam +2 more
openaire +6 more sources
Length-dependent anisotropic scaling of spindle shape [PDF]
, 2014 Spindle length varies dramatically across species and during early development to segregate chromosomes optimally. Both intrinsic factors, such as regulatory molecules, and extrinsic factors, such as cytoplasmic volume, determine spindle length scaling ...
Sébastien Besson +5 more
core +1 more source
Haematologica, 2013 Spindle poison-based therapy is of only limited benefit in acute myeloid leukemia while lymphoblastic leukemia/lymphoma responds well. In this study, we demonstrated that the spindle assembly checkpoint protein BubR1 was down-regulated in the vast ...
Dominik Schnerch +7 more
doaj +1 more source
Dual pathway spindle assembly increases both the speed and the fidelity of mitosis [PDF]
, 2011 Roughly half of all animal somatic cell spindles assemble by the classical prophase pathway, in which the centrosomes separate ahead of nuclear envelope breakdown (NEBD).
Robert A. Cross +5 more
core +1 more source
Human TPX2 is required for targeting Aurora-A kinase to the spindle [PDF]
, 2002 Aurora-A is a serine-threonine kinase implicated in the assembly and maintenance of the mitotic spindle. Here we show that human Aurora-A binds to TPX2, a prominent component of the spindle apparatus.
Roman Körner +18 more
core +1 more source
The spindle assembly checkpoint and speciation
PeerJ, 2020 A mechanism is proposed by which speciation may occur without the need to postulate geographical isolation of the diverging populations. Closely related species that occupy overlapping or adjacent ecological niches often have an almost identical genome but differ by chromosomal rearrangements that result in reproductive isolation.
Jackson, Robert C +1 more
openaire +6 more sources
Kinetochore-generated pushing forces separate centrosomes during bipolar spindle assembly [PDF]
, 2009 In animal somatic cells, bipolar spindle formation requires separation of the centrosome-based spindle poles. Centrosome separation relies on multiple pathways, including cortical forces and antiparallel microtubule (MT) sliding, which are two activities
Winter, Jennifer R. +11 more
core +1 more source
Phospho‐regulation of mitotic spindle assembly [PDF]
Cytoskeleton, 2020 AbstractThe assembly of the bipolar mitotic spindle requires the careful orchestration of a myriad of enzyme activities like protein posttranslational modifications. Among these, phosphorylation has arisen as the principle mode for spatially and temporally activating the proteins involved in early mitotic spindle assembly processes. Here, we review key
Joseph Y. Ong +2 more
openaire +4 more sources
The nucleolar RNA methyltransferase Misu (NSun2) is required for mitotic spindle stability [PDF]
, 2009 Myc-induced SUN domain–containing protein (Misu or NSun2) is a nucleolar RNA methyltransferase important for c-Myc–induced proliferation in skin, but the mechanisms by which Misu contributes to cell cycle progression are unknown.
Michaela Frye +15 more
core +1 more source
Frontiers in Plant Science, 2016 The classic maize mutant divergent spindle-1 (dv1) causes failures in meiotic spindle assembly and a decrease in pollen viability. By analyzing two independent dv1 alleles we demonstrate that this phenotype is caused by mutations in a member of the ...
David M Higgins +3 more
doaj +1 more source