3ZI5:
reference: Structural insight into the specificity of the B3 DNA-binding domains provided by the co-crystal structure of the C-terminal fragment of BfiI restriction enzyme., Golovenko D, Manakova E, Zakrys L, Zaremba M, Sasnauskas G, Grazulis S, Siksnys V, Nucleic Acids Res. 2014 Jan 13. PMID: 24423868

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