Perspective | Published:

A tethered-inchworm model of SMC DNA translocation

Nature Structural & Molecular Biologyvolume 25pages906910 (2018) | Download Citation


The DNA loop extrusion model is a provocative new concept explaining the formation of chromatin loops that revolutionizes understanding of genome organization. Central to this model is the structural maintenance of chromosomes (SMC) protein family, which is now thought to function as a DNA motor. In this Perspective, we review and reinterpret the current knowledge of SMC structure and function and propose a novel mechanism for SMC motor activity.

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Work in the authors’ lab is supported by US Public Health Service Award R01 GM035463 from the National Institutes of Health. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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  1. Department of Biology, Emory University, Atlanta, GA, USA

    • Michael H. Nichols
    •  & Victor G. Corces


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The authors declare no competing interests.

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Correspondence to Victor G. Corces.

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