Chromosome crosstalk in three dimensions.
The genome forms extensive and dynamic physical interactions with itself in the form of chromosome loops and bridges, thus exploring the three-dimensional space of the nucleus. It is now possible to examine these interactions at the molecular level, and we have gained glimpses of their functional implications. Chromosomal interactions can contribute to the silencing and activation of genes within the three-dimensional context of the nuclear architecture. Technical advances in detecting these interactions contribute to our understanding of the functional organization of the genome, as well as its adaptive plasticity in response to environmental changes during development and disease.
Göndör
Anita
A
Department of Microbiology, Tumor and Cell Biology, Nobels väg 16, Box 280, Karolinska Institute, SE-171 77 Stockholm, Sweden. anita.gondor@ki.se
Ohlsson
Rolf
R
D000818:Animals; D002467:Cell Nucleus / Q000235:genetics / Q000378:metabolism; D045584:Chromosome Positioning; D002875:Chromosomes / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D005786:Gene Expression Regulation; D006801:Humans; D009690:Nucleic Acid Conformation; D014158:Transcription, Genetic