Mutator S is one of the first proteins on the scene when mismatched nucleotides make an appearance.

Mutator S is one of the first proteins on the scene when mismatched nucleotides make an appearance. And thanks to a new technique that involves hybrid nanomaterials and small angle X-ray scattering technology, researchers have for the first time been able to ‘observe’ the work being done by MutS, helping to validate the “beads-on-a-string” model of DNA repair.

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http://www.labmanager.com/?articles.view/articleNo/38031/title/Researchers-Get-a-Detailed-Look-at-a-DNA-Repair-Protein-in-Action/
Image via The Scientist Magazine