Results 101 to 110 of about 6,270,911 (362)
Natural selection reduced diversity on human Y chromosomes [PDF]
The human Y chromosome exhibits surprisingly low levels of genetic diversity. This could result from neutral processes if the effective population size of males is reduced relative to females due to a higher variance in the number of offspring from males than from females.
arxiv
Noncoding RNAs and epigenetic mechanisms during X-chromosome inactivation.
In mammals, the process of X-chromosome inactivation ensures equivalent levels of X-linked gene expression between males and females through the silencing of one of the two X chromosomes in female cells.
Anne-Valerie Gendrel, E. Heard
semanticscholar +1 more source
Liver‐specific knockout of N6‐methyladenosine (m6A) methyltransferase METTL3 significantly accelerated hepatic tumor initiation under various oncogenic challenges, contrary to the previously reported oncogenic role of METTL3 in liver cancer cell lines or xenograft models. Mechanistically, METTL3 deficiency reduced m6A deposition on Manf transcripts and
Bo Cui+15 more
wiley +1 more source
A model for the clustered distribution of SNPs in the human genome [PDF]
Motivated by a non-random but clustered distribution of SNPs, we introduce a phenomenological model to account for the clustering properties of SNPs in the human genome. The phenomenological model is based on a preferential mutation to the closer proximity of existing SNPs.
arxiv
A scaffold for X chromosome inactivation
X chromosome inactivation (XCI), the silencing of one of the two X chromosomes in XX female cells, equalises the dosage of X-linked genes relative to XY males. The process is mediated by the non-coding RNA X inactive specific transcript (Xist) that binds in cis and propagates along the inactive X chromosome elect, triggering chromosome-wide silencing ...
Tattermusch, A, Brockdorff, N
openaire +5 more sources
The A3 adenosine receptors (A3ARs) are overexpressed in prostate cancer. AR 292 and AR 357, as A3AR antagonists, are capable of blocking proliferation, modulating the expression of drug transporter genes involved in chemoresistance, ferroptosis, and the hypoxia response, and inducing cell death.
Maria Beatrice Morelli+15 more
wiley +1 more source
BRCA1-mediated repression of select X chromosome genes
Recently BRCA1 has been implicated in the regulation of gene expression from the X chromosome. In this study the influence of BRCA1 on expression of X chromosome genes was investigated.
Ropers H Hilger+9 more
doaj +1 more source
Chromosomal rearrangements as a source of new gene formation in Drosophila yakuba [PDF]
The origins of new genes are among the most fundamental questions in evolutionary biology. Our understanding of the ways that new genetic material appears and how that genetic material shapes population variation remains incomplete. De novo genes and duplicate genes are a key source of new genetic material on which selection acts.
arxiv
In humans over 15% of X‐linked genes have been shown to ‘escape’ from X‐chromosome inactivation (XCI): they continue to be expressed to some extent from the inactive X chromosome.
Samantha B Peeters+2 more
semanticscholar +1 more source
Comparative study of adenosine 3′‐pyrophosphokinase domains of MuF polymorphic toxins
With the ultimate goal of understanding the association of toxin‐immunity modules to temperate phages, we characterized toxins from three prophages and examined cross‐protection from immunity proteins. The toxins exhibit adenosine 3′‐pyrophosphokinase activity and are toxic in Escherichia coli.
Eloïse M. Paulet+6 more
wiley +1 more source