1WNS:
reference: Crystal structure of DNA polymerase from hyperthermophilic archaeon Pyrococcus kodakaraensis KOD1., Hashimoto H, Nishioka M, Fujiwara S, Takagi M, Imanaka T, Inoue T, Kai Y, J Mol Biol 2001 Feb 23;306(3):469-77. PMID: 11178906

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