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. 2013 Sep;77(3):476–496. doi: 10.1128/MMBR.00007-13

Fig 4.

Fig 4

A model for activation of Mgm101 for mtDNA repair. The Mgm101 rings are proposed to be the storage form of the protein in mt-nucleoids. In response to oxidative stress or other signals, the C216/C217 cysteine pair is modified. This may induce structural remodeling in the rings, which stimulates ssDNA binding and the repair of dsDNA breaks.