3N6S:
reference: Human mitochondrial mTERF wraps around DNA through a left-handed superhelical tandem repeat., Jimenez-Menendez N, Fernandez-Millan P, Rubio-Cosials A, Arnan C, Montoya J, Jacobs HT, Bernado P, Coll M, Uson I, Sola M, Nat Struct Mol Biol. 2010 Jul;17(7):891-3. Epub 2010 Jun 13. PMID: 20543826

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