Results 41 to 50 of about 51,411 (295)

The Role of Human Centromeric RNA in Chromosome Stability

Frontiers in Molecular Biosciences, 2021
Chromosome instability is a hallmark of cancer and is caused by inaccurate segregation of chromosomes. One cellular structure used to avoid this fate is the kinetochore, which binds to the centromere on the chromosome.
Simon Leclerc, Katsumi Kitagawa
doaj   +1 more source

Reprogramming of human cells to pluripotency induces CENP-A chromatin depletion [PDF]

Open Biology, 2020
Pluripotent stem cells (PSCs) are central to development as they are the precursors of all cell types in the embryo. Therefore, maintaining a stable karyotype is essential, both for their physiological role as well as for their use in regenerative ...
Inês Milagre, Carolina Pereira, Raquel A. Oliveira, Lars E. T. Jansen   +3 more
doaj   +1 more source

Centromeres in nuclear architecture [PDF]

Cell Cycle, 2013
The centromere is a unique region of the chromosome that defines the site of kinetochore assembly and is essential for the faithful segregation of the sister chromatids into the 2 daughter cells. While the kinetochore only forms as a transient structure during mitosis, the centromere persists as a stable domain throughout the cell cycle, bound by ...
Patrick Heun, Jan Padeken
openaire   +3 more sources

Genomic Variation Underpins Genetic Divergence and Differing Salt Resilience in Sesbania bispinosa

Advanced Science, EarlyView.
Sesbania, a leguminous halophyte, thrives in saline soils. Comparative genomics reveals key genomic variations—particularly chromosomal inversions—are identified as contributors to population differentiation and salt resilience. These findings advance the understanding of genomic variation driving evolution and phenotypic differentiation and offer ...
Gai Huang, Xiaofei Wang, Chengli Liu, Kaixuan He, Xiu‐Li Hou, Haofei Luo, Shuaibin Zhang, Changqing You, Yajun Jia, Fuqiang Wang, Xianwei Song, Guodao Liu, Xian Deng, Xiaofeng Cao   +13 more
wiley   +1 more source

Loss of STARD7 Triggers Metabolic Reprogramming and Cell Cycle Arrest in Breast Cancer

Advanced Science, EarlyView.
Breast cancer cells undergo metabolic and transcriptomic reprogramming to support aberrant cell proliferation. Their mitochondria rely on the transfer of phosphatidylcholine from the endoplasmic reticulum to their membranes by STARD7, a candidate upregulated in breast cancer, to be functional.
Ewelina Dondajewska, Paula Allepuz‐Fuster, Chloé Maurizy, Alexandre Hego, Sandra Ormenese, Quentin Lion, Arnaud Blomme, Pierre Close, Arnaud Lavergne, Latifa Karim, Marc Thiry, Ivan Nemazanyy, Roopesh Krishnankutty, Jair Marques Jr, Alex von Kriegsheim, Nathaniel F. Henneman, Ganna Panasyuk, Kateryna Shostak, Alain Chariot   +18 more
wiley   +1 more source

Structure and Stability of Telocentric Chromosomes in Wheat. [PDF]

PLoS ONE, 2015
In most eukaryotes, centromeres assemble at a single location per chromosome. Naturally occurring telocentric chromosomes (telosomes) with a terminal centromere are rare but do exist.
Dal-Hoe Koo, Sunish K Sehgal, Bernd Friebe, Bikram S Gill   +3 more
doaj   +1 more source

Centromere repositioning in mammals [PDF]

Heredity, 2011
The evolutionary history of chromosomes can be tracked by the comparative hybridization of large panels of bacterial artificial chromosome clones. This approach has disclosed an unprecedented phenomenon: 'centromere repositioning', that is, the movement of the centromere along the chromosome without marker order variation.
M. Rocchi, N. Archidiacono, W. Schempp, O. Capozzi, STANYON, ROSCOE ROBERT   +4 more
openaire   +4 more sources

Structural Variations Associated with Adaptation and Coat Color in Qinghai‐Tibetan Plateau Cattle

Advanced Science, EarlyView.
This study reveals the landscape of structural variants in Qinghai‐Tibetan Plateau cattle through long‐read sequencing. Discoveries include metabolic and oxygen‐regulation gene variants, along with a 2‐Mb KIT‐containing inversion and translocations responsible for cattle gray coat. These findings highlight the significant role of structural variants in
Xiaoting Xia, Fuwen Wang, Xiaoyu Luo, Shuang Li, Yang Lyu, Yining Zheng, Zhijie Ma, Kaixing Qu, Rende Song, Jianyong Liu, Jicai Zhang, Basang Wangdui, Basang Zhuzha, Suolang Quji, Li Zhao, Silang Wangmu, Ciren Luobu, Nima Cangjue, Danzeng Luosang, Suolang Sizhu, Haijian Cheng, Ruizhe Li, Zhipeng Wu, Ruihua Dang, Yongzhen Huang, Xianyong Lan, Luohao Xu, Haifei Hu, WaiYee Low, Zhuqing Zheng, Yu Wang, Yuanpeng Gao, Lu Deng, Johannes A. Lenstra, Jianlin Han, Xueyi Yang, Wenfa Lyu, Bizhi Huang, Chuzhao Lei, Ningbo Chen   +39 more
wiley   +1 more source

Defining the consequences of endogenous genetic variation within a novel family of Schizosaccharomyces pombe heterochromatin nucleating sequences

G3: Genes, Genomes, Genetics, 2021
Centromeres are essential for genetic inheritance—they prevent aneuploidy by providing a physical link between DNA and chromosome segregation machinery.
Arati Joshi, Meryl J Musicante, Bayly S Wheeler   +2 more
doaj   +1 more source

SENP6 Maintains Mitochondrial Homeostasis by Regulating Mitochondrial Protein Import Through deSUMOylation of TOM40

Advanced Science, EarlyView.
SUMOylation regulates mitochondrial processes, but its impact on protein import remains unclear. TOM40 is identified, a mitochondrial outer membrane channel protein, as a substrate of deSUMOylase SENP6. TOM40 SUMOylation disrupts outer membrane complex assembly, inhibits protein import, and compromises mitochondrial homeostasis.
Liubing Hu, Jianshuang Li, Haolin Guo, Lei Su, Peina Dong, Juan Huang, Yanyan Liu, Xinjie Liu, Zhenhuan Luo, Wei Xiong, Zhenyu Ju, Qinghua Zhou, Hao Wang, Wenjun Wang   +13 more
wiley   +1 more source