Results 71 to 80 of about 92,775 (200)

Neocentromeres Provide Chromosome Segregation Accuracy and Centromere Clustering to Multiple Loci along a Candida albicans Chromosome. [PDF]

open access: yesPLoS Genetics, 2016
Assembly of kinetochore complexes, involving greater than one hundred proteins, is essential for chromosome segregation and genome stability. Neocentromeres, or new centromeres, occur when kinetochores assemble de novo, at DNA loci not previously ...
Laura S Burrack   +12 more
doaj   +1 more source

Genome-wide mapping reveals single-origin chromosome replication in Leishmania, a eukaryotic microbe [PDF]

open access: yes, 2015
Background DNA replication initiates on defined genome sites, termed origins. Origin usage appears to follow common rules in the eukaryotic organisms examined to date: all chromosomes are replicated from multiple origins, which display variations in ...
Campbell, Samantha J.   +4 more
core   +2 more sources

SEQUENCE OF CENTROMERE SEPARATION: ROLE OF CENTROMERIC HETEROCHROMATIN [PDF]

open access: yesGenetics, 1982
ABSTRACT The late metaphase-early anaphase cells from various tissues of male Mus musculus, M. poschiavinus, M. spretus, M. castaneus, female and male Bos taurus (cattle) and female Myopus schisticolor (wood lemming) were analyzed for centromeres that showed separation into two daughter centromeres and those that did not show such ...
openaire   +2 more sources

Anti-centromere antibody positivity with coexisting idiopathic portal hypertension and primary biliary cholangitis progressing to limited cutaneous systemic sclerosis: a case report

open access: yesJournal of Medical Case Reports
Background Anti-centromere antibodies are autoantibodies that selectively bind to the centromere region of chromosomes. Studies have indicated that anti-centromere antibodies can induce microvascular alterations and tissue remodeling, ultimately leading ...
Yuya Ando   +11 more
doaj   +1 more source

A time out for CENP-A

open access: yesMolecular & Cellular Oncology, 2017
Proper chromosome segregation relies on a functional centromere–kinetochore interface. We showed that chromatin containing CENtromere Protein A (CENP-A) is essential for centromere assembly, but dispensable for chromosome segregation in the presence of ...
S. Hoffmann, D. Fachinetti
doaj   +1 more source

Applying Choosing Wisely: Antinuclear Antibody (ANA) and Sub-Serology Testing in a Safety Net Hospital System. [PDF]

open access: yes, 2015
ObjectiveIn 2013, the American College of Rheumatology (ACR) participated in the Choosing Wisely campaign and devised a recommendation to avoid testing antinuclear antibody (ANA) subserologies without a positive ANA and clinical suspicion of disease. The
Davis, Lisa Anne   +7 more
core   +2 more sources

Centromere deletion in Cryptococcus deuterogattii leads to neocentromere formation and chromosome fusions

open access: yeseLife, 2020
The human fungal pathogen Cryptococcus deuterogattii is RNAi-deficient and lacks active transposons in its genome. C. deuterogattii has regional centromeres that contain only transposon relics.
Klaas Schotanus, Joseph Heitman
doaj   +1 more source

CENP-A Ubiquitylation Is Inherited through Dimerization between Cell Divisions

open access: yesCell Reports, 2016
The presence of chromatin containing the histone H3 variant CENP-A dictates the location of the centromere in a DNA sequence-independent manner. But the mechanism by which centromere inheritance occurs is largely unknown. We previously reported that CENP-
Yohei Niikura   +2 more
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 budding yeast Centromere DNA Element II wraps a stable Cse4 hemisome in either orientation in vivo

open access: yeseLife, 2014
In budding yeast, a single cenH3 (Cse4) nucleosome occupies the ∼120-bp functional centromere, however conflicting structural models for the particle have been proposed. To resolve this controversy, we have applied H4S47C-anchored cleavage mapping, which
Steven Henikoff   +8 more
doaj   +1 more source

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