Systemic regulation of genetic and cytogenetic processes by a signal cascade of actin remodeling: Locus agnostic in Drosophila

Systemic regulation of genetic and cytogenetic processes by a signal cascade of actin remodeling:... The concept on systemic regulation of genetic and cytogenetic processes has acquired a new perspective after the completion of the Human Genome project, when the view on systemic realization of genetic activity in the dynamic spatial organization of the genome in the nucleus was generally accepted. This organization underlies plasticity of complex biological systems. Chromosome position within the nucleus determines both processes of normal development and the development of genomic diseases, i.e., changes according to the environmental requirements, current needs of the organism, and its individual experience. Nuclear actin has been envisioned as a main factor bridging three levels of the genome organization (nucleotide, structural, and spatial), due to its capability of (1) regulating transcription by activating all three classes of RNA polymerase; (2) participating in chromatin remodeling by interacting with numerous proteins; and (3) lining the nuclear membrane, determining the chromosome attachment points and regulating export from the nucleus. In view of this, the role of actin remodeling factors (LIMK1, cofilin, actin) in the development of neurodegenerative diseases, including prionic ones, and in the mechanisms of generation of genomic diseases, syndromes resulting from unequal recombination, has been intensely studied. Drosophila is a helpful model organism to determine the sequence of events in this system of hierarchical relationships. Using spontaneous and mutant variants of the agnostic locus, we have designed a model for the Williams syndrome, which also reproduces main diagnostic traits of neurodegenerative diseases. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Systemic regulation of genetic and cytogenetic processes by a signal cascade of actin remodeling: Locus agnostic in Drosophila

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2008 by MAIK Nauka
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795408060069
Publisher site
See Article on Publisher Site

Abstract

The concept on systemic regulation of genetic and cytogenetic processes has acquired a new perspective after the completion of the Human Genome project, when the view on systemic realization of genetic activity in the dynamic spatial organization of the genome in the nucleus was generally accepted. This organization underlies plasticity of complex biological systems. Chromosome position within the nucleus determines both processes of normal development and the development of genomic diseases, i.e., changes according to the environmental requirements, current needs of the organism, and its individual experience. Nuclear actin has been envisioned as a main factor bridging three levels of the genome organization (nucleotide, structural, and spatial), due to its capability of (1) regulating transcription by activating all three classes of RNA polymerase; (2) participating in chromatin remodeling by interacting with numerous proteins; and (3) lining the nuclear membrane, determining the chromosome attachment points and regulating export from the nucleus. In view of this, the role of actin remodeling factors (LIMK1, cofilin, actin) in the development of neurodegenerative diseases, including prionic ones, and in the mechanisms of generation of genomic diseases, syndromes resulting from unequal recombination, has been intensely studied. Drosophila is a helpful model organism to determine the sequence of events in this system of hierarchical relationships. Using spontaneous and mutant variants of the agnostic locus, we have designed a model for the Williams syndrome, which also reproduces main diagnostic traits of neurodegenerative diseases.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jul 2, 2008

References

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