Results 101 to 110 of about 40,318 (318)

AI-Assisted Forward Modeling of Biological Structures

open access: yesFrontiers in Cell and Developmental Biology, 2019
The rise of machine learning and deep learning technologies have allowed researchers to automate image classification. We describe a method that incorporates automated image classification and principal component analysis to evaluate computational models
Josh Lawrimore   +3 more
doaj   +1 more source

A novel chromosome segregation mechanism during female meiosis. [PDF]

open access: yes, 2016
In a wide range of eukaryotes, chromosome segregation occurs through anaphase A, in which chromosomes move toward stationary spindle poles, anaphase B, in which chromosomes move at the same velocity as outwardly moving spindle poles, or both. In contrast,
Cortes, Daniel B   +4 more
core   +1 more source

The PP2A‐B56 Binding Site LxxIxE Contributes to Asp‐Mediated Spindle Pole Stability

open access: yesCytoskeleton, EarlyView.
ABSTRACT The organization of microtubules into a mitotic spindle is critical for animal cell proliferation and involves the cooperation of hundreds of proteins whose molecular roles and regulation are not fully understood. The protein product of the Drosophila gene abnormal spindle, Asp, is a microtubule‐associated protein required for correct mitotic ...
Margaux Quiniou   +6 more
wiley   +1 more source

Sad1 Spatiotemporally Regulates Kinetochore Clustering To Ensure High-Fidelity Chromosome Segregation in the Human Fungal Pathogen Cryptococcus neoformans

open access: yesmSphere, 2018
Kinetochore clustering, frequently observed in yeasts, plays a key role in genome organization and chromosome segregation. In the absence of the metaphase plate arrangement, kinetochore clustering in yeast species is believed to facilitate timely ...
Vikas Yadav, Kaustuv Sanyal
doaj   +1 more source

The Drosophila histone variant H2A.V works in concert with HP1 to promote kinetochore-driven microtubule formation [PDF]

open access: yes, 2015
Unlike other organisms that have evolved distinct H2A variants for different functions, Drosophila melanogaster has just one variant which is capable of filling many roles.
Cenci, Giovanni, Verni', Fiammetta
core   +1 more source

The Saccharomyces cerevisiae kinetochore [PDF]

open access: yesFEBS Letters, 1996
Accurate chromosome segregation is DApenDAnt on a specialized chromosomal structure, the kinetochore/centromere. The only essential constituent of the S. cerevisiae kinetochore established today is CBF3, a multisubunit complex that binds to S. cerevisiae centromere DNA.
Johannes Lechner, Jennifer Ortiz
openaire   +2 more sources

Interaction Between Actin and Microtubules During Plant Development

open access: yesCytoskeleton, EarlyView.
ABSTRACT The dynamic interaction between actin filaments (AFs) and microtubules (MTs) plays a crucial role in regulating key developmental and physiological processes in plant cells, particularly in the formation of specialized cell types with distinct shapes and functions, such as pollen tubes, trichomes, and leaf epidermal cells.
Zining Wu   +3 more
wiley   +1 more source

Lateral and End-On Kinetochore Attachments Are Coordinated to Achieve Bi-orientation in Drosophila Oocytes.

open access: yesPLoS Genetics, 2015
In oocytes, where centrosomes are absent, the chromosomes direct the assembly of a bipolar spindle. Interactions between chromosomes and microtubules are essential for both spindle formation and chromosome segregation, but the nature and function of ...
Sarah J Radford   +4 more
doaj   +1 more source

Loss of APC induces polyploidy as a result of a combination of defects in mitosis and apoptosis [PDF]

open access: yes, 2007
Mutations in the adenomatous polyposis coli (APC) tumor suppressor gene initiate a majority of colorectal cancers. Acquisition of chromosomal instability is an early event in these tumors.
Clarke, Alan   +9 more
core   +4 more sources

Reconstruction of the kinetochore: a prelude to meiosis [PDF]

open access: yesCell Division, 2007
Abstract In eukaryotic organisms, chromosomes are spatially organized within the nucleus. Such nuclear architecture provides a physical framework for the genetic activities of chromosomes, and changes its functional organization as the cell moves through the phases of the cell cycle.
Yasushi Hiraoka   +4 more
openaire   +4 more sources

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