Results 21 to 30 of about 553,309 (213)

Large-Scale Analysis of X Inactivation Variations between Primed and Naïve Human Embryonic Stem Cells

open access: yesCells, 2022
X chromosome inactivation is a mammalian dosage compensation mechanism, where one of two X chromosomes is randomly inactivated in female cells. Previous studies have suggested that primed human embryonic stem cells (hESCs) maintain an eroded state of the
Roni Sarel-Gallily, Nissim Benvenisty
doaj   +1 more source

X chromosome control of meiotic chromosome synapsis in mouse inter-subspecific hybrids. [PDF]

open access: yesPLoS Genetics, 2014
Hybrid sterility (HS) belongs to reproductive isolation barriers that safeguard the integrity of species in statu nascendi. Although hybrid sterility occurs almost universally among animal and plant species, most of our current knowledge comes from the ...
Tanmoy Bhattacharyya   +8 more
doaj   +1 more source

Deciphering the Role of the Barr Body in Malignancy: An insight into head and neck cancer

open access: yesSultan Qaboos University Medical Journal, 2018
X chromosome inactivation is the epitome of epigenetic regulation and long non-coding ribonucleic acid function. The differentiation status of cells has been ascribed to X chromosome activity, with two active X chromosomes generally only observed in ...
Deepti Sharma   +4 more
doaj   +1 more source

Global analysis of X-chromosome dosage compensation

open access: yesJournal of Biology, 2006
Background Drosophila melanogaster females have two X chromosomes and two autosome sets (XX;AA), while males have a single X chromosome and two autosome sets (X;AA).
Malley James D   +8 more
doaj   +1 more source

Variation of autosomes and X chromosome STR in breast cancer and gynecological cancer tissues

open access: yesOpen Life Sciences, 2017
This study analyses 1000 cases of patients with breast cancer and 2000 cases of patients with gynecological cancer (1000 cases of malignant tumor, 1000 cases of benign tumors), where breast cancer and malignant tumor patients comprise the observation ...
Hou Youxiang   +2 more
doaj   +1 more source

Stochastic gene expression and chromosome interactions in protecting the human active X from silencing by XIST

open access: yesNucleus, 2021
Mammals use X chromosome inactivation to compensate for the sex difference in numbers of X chromosomes. A relatively unexplored question is how the active X is protected from inactivation by its own XIST gene, the long non-coding RNA, which initiates ...
Barbara R. Migeon
doaj   +1 more source

Escapees on the X chromosome [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
In many organisms, differentiation of the sex chromosome complement resulted in the coordinated regulation of genes on whole chromosomes to equalize gene expression between the sexes. In mammals, X inactivation evolved to restore equal expression of X-linked genes in males and females (1).
openaire   +2 more sources

X Chromosome Pericentric Inversion: Report of a Case with 46,X,inv(X)(p11.2q26) and a Mini-Review of the Literature

open access: yesGazi Medical Journal
Pericentric inversions arise from double breaks on opposite arms of the chromosome, followed by 180° rotation and reintegration of the broken segment. Carriers of an inversion are mostly phenotypically healthy.
Emine Göktaş   +3 more
doaj   +1 more source

Rlim/Rnf12, Rex1, and X Chromosome Inactivation

open access: yesFrontiers in Cell and Developmental Biology, 2019
RLIM/Rnf12 is an E3 ubiquitin ligase that has originally been identified as a transcriptional cofactor associated with LIM domain transcription factors.
Feng Wang, Ingolf Bach
doaj   +1 more source

Elastic dosage compensation by X-chromosome upregulation

open access: yesNature Communications, 2022
The concerted dynamics of X-chromosome upregulation and X-chromosome inactivation, which collectively balance X-chromosome expression, are not well understood.
Antonio Lentini   +8 more
doaj   +1 more source

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