Results 1 to 10 of about 72,919 (193)

SU(VAR)3-7 links heterochromatin and dosage compensation in Drosophila. [PDF]

open access: goldPLoS Genetics, 2008
In Drosophila, dosage compensation augments X chromosome-linked transcription in males relative to females. This process is achieved by the Dosage Compensation Complex (DCC), which associates specifically with the male X chromosome.
Anne Spierer   +3 more
doaj   +7 more sources

Transcription dosage compensation does not occur in Down syndrome [PDF]

open access: yesBMC Biology, 2023
Background The increase in DNA copy number in Down syndrome (DS; caused by trisomy 21) has led to the DNA dosage hypothesis, which posits that the level of gene expression is proportional to the gene’s DNA copy number.
Samuel Hunter   +4 more
doaj   +2 more sources

The epigenome of evolving Drosophila neo-sex chromosomes: dosage compensation and heterochromatin formation. [PDF]

open access: yesPLoS Biology, 2013
Sex chromosomes originated from autosomes but have evolved a highly specialized chromatin structure. Drosophila Y chromosomes are composed entirely of silent heterochromatin, while male X chromosomes have highly accessible chromatin and are ...
Qi Zhou   +5 more
doaj   +16 more sources

A sequence motif enriched in regions bound by the Drosophila dosage compensation complex [PDF]

open access: yesBMC Genomics, 2010
Background In Drosophila melanogaster, dosage compensation is mediated by the action of the dosage compensation complex (DCC). How the DCC recognizes the fly X chromosome is still poorly understood.
Aldecoa Rodrigo   +3 more
doaj   +8 more sources

Gene dosage compensation: Origins, criteria to identify compensated genes, and mechanisms including sensor loops as an emerging systems‐level property in cancer [PDF]

open access: yesCancer Medicine, 2023
The gene dosage compensation hypothesis presents a mechanism through which the expression of certain genes is modulated to compensate for differences in the dose of genes when additional chromosomes are present.
Diana M. Bravo‐Estupiñan   +6 more
doaj   +2 more sources

Targeting determinants of dosage compensation in Drosophila. [PDF]

open access: yesPLoS Genetics, 2006
The dosage compensation complex (DCC) in Drosophila melanogaster is responsible for up-regulating transcription from the single male X chromosome to equal the transcription from the two X chromosomes in females.
Ina K Dahlsveen   +4 more
doaj   +12 more sources

Sex Chromosome Dosage Compensation in Insects [PDF]

open access: yesInsects
Dosage compensation (DC) is of crucial importance in balancing the sex-linked gene expression between males and females. It serves to guarantee that the proteins or other enzymatic products encoded by the sex chromosome exhibit quantitative parity ...
Xingcheng Xie   +3 more
doaj   +2 more sources

Restricting dosage compensation complex binding to the X chromosomes by H2A.Z/HTZ-1. [PDF]

open access: yesPLoS Genetics, 2009
Dosage compensation ensures similar levels of X-linked gene products in males (XY or XO) and females (XX), despite their different numbers of X chromosomes.
Emily L Petty   +4 more
doaj   +5 more sources

Chromatin accessibility, not 5mC methylation covaries with partial dosage compensation in crows. [PDF]

open access: yesPLoS Genetics, 2023
The evolution of genetic sex determination is often accompanied by degradation of the sex-limited chromosome. Male heterogametic systems have evolved convergent, epigenetic mechanisms restoring the resulting imbalance in gene dosage between diploid ...
Ana Catalán   +3 more
doaj   +2 more sources

Elastic dosage compensation by X-chromosome upregulation [PDF]

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   +2 more sources

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