3Q8K: Crystal Structure Of Human Flap Endonuclease Fen1 (Wt) In Co Product 5'-Flap Dna, Sm3+, And K+
reference: Human Flap Endonuclease Structures, DNA Double-Base Flipping, and a Unified Understanding of the FEN1 Superfamily., Tsutakawa SE, Classen S, Chapados BR, Arvai AS, Finger LD, Guenther G, Tomlinson CG, Thompson P, Sarker AH, Shen B, Cooper PK, Grasby JA, Tainer JA, Cell. 2011 Apr 15;145(2):198-211. PMID: 21496641

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