Results 21 to 30 of about 252,745 (293)
Gene dosage analysis in Azotobacter vinelandii. [PDF]
Abstract For more than a decade, Azotobacter vinelandii has been considered a polyploid bacterium on the basis of physical studies of chromosome size and DNA content per cell. However, as described in the present work, many genetic operations can be performed in A. vinelandii without the constraints expected in a polyploid bacterium: (i)
Maldonado, Rafael +3 more
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General lack of global dosage compensation in ZZ/ZW systems? Broadening the perspective with RNA-seq [PDF]
Background Species with heteromorphic sex chromosomes face the challenge of large-scale imbalance in gene dose. Microarray-based studies in several independent male heterogametic XX/XY systems suggest that dosage compensation mechanisms are in place to ...
Bryk, Jaroslaw, +11 more
core +1 more source
The Chromosomal High-Affinity Binding Sites for the Drosophila Dosage Compensation Complex [PDF]
Dosage compensation in male Drosophila relies on the X chromosome-specific recruitment of a chromatin-modifying machinery, the dosage compensation complex (DCC). The principles that assure selective targeting of the DCC are unknown.
Grimaud, Charlotte +16 more
core +1 more source
On the Mode of Gene-Dosage Compensation in Drosophila [PDF]
A procedure is described for determining the mode and magnitude of gene-dosage compensation of transformed genes. It involves measurement of the ratio of the activity of a gene inserted at X-linked sites to the activity of the same gene inserted at autosomal sites.
I, Arkhipova, J, Li, M, Meselson
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Targeting determinants of dosage compensation in Drosophila [PDF]
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.
Rosemarie Lamm +18 more
core +1 more source
Dosage-sensitive genes in evolution and disease [PDF]
For a subset of genes in our genome a change in gene dosage, by duplication or deletion, causes a phenotypic effect. These dosage-sensitive genes may confer an advantage upon copy number change, but more typically they are associated with disease, including heart disease, cancers and neuropsychiatric disorders. This gene copy number sensitivity creates
Alan M. Rice, Aoife McLysaght
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Effects of Aberrant Pax6 Gene Dosage on Mouse Corneal Pathophysiology and Corneal Epithelial Homeostasis [PDF]
Background: Altered dosage of the transcription factor PAX6 causes multiple human eye pathophysiologies. PAX6(+/-) heterozygotes suffer from aniridia and aniridia-related keratopathy (ARK), a corneal deterioration that probably involves a limbal ...
Fullwood, Nigel J. +34 more
core +1 more source
Association of the CCR5 gene with juvenile idiopathic arthritis [PDF]
The CC chemokine receptor 5 (CCR5) has been shown to be important in the recruitment of T-helper cells to the synovium, where they accumulate, drive the inflammatory process and the consequent synovitis and joint destruction.
Martin, P. +22 more
core +1 more source
This study assessed the combinations of genetic manipulation; signal peptide modification, gene dosage increment and co-expression of folding component, to increase Saccharomycopsis fibuligera R64 α-amylase (Sfamy) secretion in Pichia pastoris.
Shabarni Gaffar +4 more
doaj +1 more source
Karyotype, ploidy, and gene dosage [PDF]
The normal karyotype of Caenorhabditis elegans, with its five pairs of autosomes and single pair of X chromosomes, is described. General features of chromosomes and global differences between different chromosomal regions are discussed. Abnormal karyotypes, including duplications, deficiencies, inversions, translocations and chromosome fusions are ...
openaire +2 more sources

