5NW5:
reference: Rif1 maintains telomeres and mediates DNA repair by encasing DNA ends., Mattarocci S, Reinert JK, Bunker RD, Fontana GA, Shi T, Klein D, Cavadini S, Faty M, Shyian M, Hafner L, Shore D, Thoma NH, Rass U, Nat Struct Mol Biol. 2017 Jul;24(7):588-595. doi: 10.1038/nsmb.3420. Epub 2017, Jun 12. PMID: 28604726

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