Organization of the mitotic chromosome

UMMS Affiliation

Program in Systems Biology; Department of Biochemistry and Molecular Pharmacology

Publication Date


Document Type



Computational Biology | Systems Biology


Mitotic chromosomes are among the most recognizable structures in the cell, yet for over a century their internal organization remains largely unsolved. We applied chromosome conformation capture methods, 5C and Hi-C, across the cell cycle and revealed two distinct three-dimensional folding states of the human genome. We show that the highly compartmentalized and cell type-specific organization described previously for nonsynchronous cells is restricted to interphase. In metaphase, we identified a homogenous folding state that is locus-independent, common to all chromosomes, and consistent among cell types, suggesting a general principle of metaphase chromosome organization. Using polymer simulations, we found that metaphase Hi-C data are inconsistent with classic hierarchical models and are instead best described by a linearly organized longitudinally compressed array of consecutive chromatin loops.

DOI of Published Version



Naumova N, Imakaev M, Fudenberg G, Zhan Y, Lajoie BR, Mirny LA, Dekker J. Organization of the mitotic chromosome. Science. 2013 Nov 22;342(6161):948-53. doi: 10.1126/science.1236083. Link to article on publisher's site

Journal/Book/Conference Title

Science (New York, N.Y.)

Related Resources

Link to Article in PubMed

PubMed ID