Three-dimensional maps of all chromosomes in human male fibroblast nuclei and prometaphase rosettes.

ABSTRACT: Studies of higher-order chromatin arrangements are an essential part of ongoing attempts to explore changes in epigenome structure and their functional implications during development and cell differentiation. However, the extent and cell-type-specificity of three-dimensional (3D) chromosome arrangements has remained controversial. In order to overcome technical limitations of previous studies, we have developed tools that allow the quantitative 3D positional mapping of all chromosomes simultaneously. We present unequivocal evidence for a probabilistic 3D order of prometaphase chromosomes, as well as of chromosome territories (CTs) in nuclei of quiescent (G0) and cycling (early S-phase) human diploid fibroblasts (46, XY). Radial distance measurements showed a probabilistic, highly nonrando

SUBMITTER: Bolzer A 

PROVIDER: S-EPMC1084335 | biostudies-literature | 2005 May

REPOSITORIES: biostudies-literature