2FDC:
reference: Structural basis for DNA recognition and processing by UvrB., Truglio JJ, Karakas E, Rhau B, Wang H, DellaVecchia MJ, Van Houten B, Kisker C, Nat Struct Mol Biol. 2006 Apr;13(4):360-4. Epub 2006 Mar 12. PMID: 16532007

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