5ZOF:
reference: Structural basis of 5' flap recognition and protein-protein interactions of human flap endonuclease 1., Xu H, Shi R, Han W, Cheng J, Xu X, Cheng K, Wang L, Tian B, Zheng L, Shen B, Hua Y, Zhao Y, Nucleic Acids Res. 2018 Nov 30;46(21):11315-11325. doi: 10.1093/nar/gky911. PMID: 30295841

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