4PBA:
reference: Structure of 5-hydroxymethylcytosine-specific restriction enzyme, AbaSI, in complex with DNA., Horton JR, Borgaro JG, Griggs RM, Quimby A, Guan S, Zhang X, Wilson GG, Zheng Y, Zhu Z, Cheng X, Nucleic Acids Res. 2014 Jun 3. pii: gku497. PMID: 24895434

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