Cellular and Molecular Life Sciences

, Volume 66, Issue 13, pp 2025–2035

Cohesins: chromatin architects in chromosome segregation, control of gene expression and much more

Authors

    • Departamento de Biología Celular y del DesarrolloCentro de Investigaciones Biológicas (CSIC)
Review

DOI: 10.1007/s00018-009-0004-8

Cite this article as:
Barbero, J.L. Cell. Mol. Life Sci. (2009) 66: 2025. doi:10.1007/s00018-009-0004-8

Abstract

Cells have evolved to develop molecules and control mechanisms that guarantee correct chromosome segregation and ensure the proper distribution of genetic material to daughter cells. In this sense, the establishment, maintenance, and removal of sister chromatid cohesion is one of the most fascinating and dangerous processes in the life of a cell because errors in the control of these processes frequently lead to cell death or aneuploidy. The main protagonist in this mechanism is a four-protein complex denominated the cohesin complex. In the last 10 years, we have improved our understanding of the key players in the regulation of sister chromatid cohesion during cell division in mitosis and meiosis. The last 2 years have seen an increase in evidence showing that cohesins have important functions in non-dividing cells, revealing new, unexplored roles for these proteins in the control of gene expression, development, and other essential cell functions in mammals.

Keywords

CentrosomesChromosome segregationCohesinCohesinopathiesGene expression controlInsulatorsNeuron developmentSister chromatid cohesion

Copyright information

© Birkhäuser Verlag, Basel/Switzerland 2009