Biopolymers and Cell. 2012; 28(4): 245-251
C-METHODS TO STUDY 3D ORGANIZATION OF THE EUKARYOTIC GENOME
1, 3Gavrilov A. A., 1, 2Razin S. V., 1Iarovaia O. V.
1Institute of Gene Biology, Russian Academy of Sciences
34/5, Vavilova Str., Moscow, Russian Federation, 119334
2Department of Molecular Biology, Faculty of Biology, M. V. Lomonosov Moscow State University
Leninskie Gory, Moscow, Russian Federation, 119991
3University of Oslo, Centre for Medical Studies in Russia
34/5, Vavilova Str., Moscow, Russian Federation, 119334
It is becoming increasingly evident that spatial organization of the eukaryotic genome plays an important role in regulation of gene expression. The three-dimensional (3D) genome organization can be studied using different types of microscopy, in particular those coupled with fluorescence in situ hybridization. However, when it comes to the analysis of spatial interaction between specific genome regions, much higher performance demonstrate chromosome conformation capture (3C) methods. They are based on the proximity ligation approach which consists in preferential ligation of the ends of DNA fragments joined via protein bridges in living cells by formaldehyde fixation. It is assumed that such bridges link DNA fragments that are located in close spatial proximity in the cell nucleus. In this review we describe current 3C-based approaches, from 3C and ChiP-loop to Hi-C and ChiA-PET, going under the collective name of C-methods |
|
|