4ED1: Human Dna Polymerase Eta - Dna Ternary Complex: At Crystal A (Na+ Mes) With 1 Ca2+ Ion
reference: Watching DNA polymerase eta make a phosphodiester bond., Nakamura T, Zhao Y, Yamagata Y, Hua YJ, Yang W, Nature. 2012 Jul 11;487(7406):196-201. doi: 10.1038/nature11181. PMID: 22785315

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