Results 41 to 50 of about 534,301 (305)

Exotic mitotic mechanisms [PDF]

open access: yesOpen Biology, 2012
The emergence of eukaryotes around two billion years ago provided new challenges for the chromosome segregation machineries: the physical separation of multiple large and linear chromosomes from the microtubule-organizing centres by the nuclear envelope.
Hauke Drechsler, Andrew D. McAinsh
doaj   +1 more source

Mitotic spindle scaling during Xenopus development by kif2a and importin α. [PDF]

open access: yes, 2012
Early development of many animals is characterized by rapid cleavages that dramatically decrease cell size, but how the mitotic spindle adapts to changing cell dimensions is not understood.
HEALD, Rebecca, Wilbur, Jeremy
core   +2 more sources

Perturbing Microtubule Integrity Blocks AMP-Activated Protein Kinase-Induced Meiotic Resumption in Cultured Mouse Oocytes [PDF]

open access: yes, 2012
The oocyte meiotic spindle is comprised of microtubules (MT) that bind chromatin and regulate both metaphase plate formation and karyokinesis during meiotic maturation; however, little information is known about their role in meiosis reinitiation.
Downs, Stephen, Ya, Ru
core   +2 more sources

Dual-spindle formation in zygotes keeps parental genomes apart in early mammalian embryos

open access: yesScience, 2018
It takes two to tango Fusion of egg and sperm combines the genetic material of both parents in one cell. In mammals, including humans, each parental genome is initially confined in a separate pronucleus.
Judith Reichmann   +9 more
semanticscholar   +1 more source

The Phage Nucleus and Tubulin Spindle Are Conserved among Large Pseudomonas Phages

open access: yesCell Reports, 2017
We recently demonstrated that the large Pseudomonas chlororaphis bacteriophage 201φ2-1 assembles a nucleus-like structure that encloses phage DNA and segregates proteins according to function, with DNA processing proteins inside and metabolic enzymes and
Vorrapon Chaikeeratisak   +5 more
doaj   +1 more source

Reduction of the influence on machining surface caused by tool non-repeatable run-out of rolling bearing spindle for machine tools (Improvement of machining surface quality with an excitation system)

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In recent years, the demands for mirror finishing by cutting have increased, because the surface quality requirement in die and mold has become severer. In order to realize mirror surface finish by cutting, it is necessary to reduce the influence of tool
Yuta SHOWA, Hayato YOSHIOKA
doaj   +1 more source

Spindle asymmetry drives non-Mendelian chromosome segregation

open access: yesScience, 2017
How selfish genes get their way At the core of Mendelian genetics is the concept that gametes are equally likely to carry either of the two parental copies of a gene.
Takashi Akera   +8 more
semanticscholar   +1 more source

Association of mitochondria with spindle poles facilitates spindle alignment [PDF]

open access: yesCurrent Biology, 2008
In all eukaryotic cells, correct segregation of the genetic material during cell division requires proper positioning and alignment of the mitotic spindle with respect to the cell division plane. In the fission yeastSchizosaccharomyces pombe, the spindle is aligned by interphase microtubules during early mitosis , and by astral microtubules and cell ...
Iva Marija Tolić-Norrelykke   +1 more
openaire   +4 more sources

Electromyography of the muscle spindle

open access: yesScientific Reports, 2022
AbstractIn needle electromyography, there are two spontaneous waveforms, miniature end plate potentials and “end plate spikes”, appearing usually together. Miniature end plate potentials are local, non-propagating postsynaptic waves, caused by spontaneous exocytosis of acetylcholine in the neuromuscular junction.
Partanen, Juhani V.   +2 more
openaire   +5 more sources

A mitotic kinase scaffold depleted in testicular seminomas impacts spindle orientation in germ line stem cells. [PDF]

open access: yes, 2015
Correct orientation of the mitotic spindle in stem cells underlies organogenesis. Spindle abnormalities correlate with cancer progression in germ line-derived tumors.
Bucko, Paula   +8 more
core   +1 more source

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