5KMZ:
reference: Structure of Tetrahymena telomerase reveals previously unknown subunits, functions, and interactions., Jiang J, Chan H, Cash DD, Miracco EJ, Ogorzalek Loo RR, Upton HE, Cascio D, O'Brien Johnson R, Collins K, Loo JA, Zhou ZH, Feigon J, Science. 2015 Oct 30;350(6260):aab4070. doi: 10.1126/science.aab4070. Epub 2015, Oct 15. PMID: 26472759

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