2V6Z:
reference: The solution structure of the amino-terminal domain of human DNA polymerase epsilon subunit B is homologous to C-domains of AAA+ proteins., Nuutinen T, Tossavainen H, Fredriksson K, Pirila P, Permi P, Pospiech H, Syvaoja JE, Nucleic Acids Res. 2008 Sep;36(15):5102-10. Epub 2008 Aug 2. PMID: 18676977

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