4OC8:
reference: Structure and mutagenesis of the DNA modification-dependent restriction endonuclease AspBHI., Horton JR, Nugent RL, Li A, Mabuchi MY, Fomenkov A, Cohen-Karni D, Griggs RM, Zhang X, Wilson GG, Zheng Y, Xu SY, Cheng X, Sci Rep. 2014 Mar 7;4:4246. doi: 10.1038/srep04246. PMID: 24604015

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