5DQO:
reference: The [4Fe4S] cluster of human DNA primase functions as a redox switch using DNA charge transport., O'Brien E, Holt ME, Thompson MK, Salay LE, Ehlinger AC, Chazin WJ, Barton JK, Science. 2017 Feb 24;355(6327). pii: eaag1789. doi: 10.1126/science.aag1789. PMID: 28232525

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