label: 5'-flap-structured DNA binding
label_lc: 5'-flap-structured dna binding
description: "Binding to a 5'-flap structure in DNA. A DNA flap structure is one in which a single-stranded 5'-end of DNA or RNA protrudes from a double-stranded DNA molecule. 5'-flap structures can be formed during DNA repair or lagging strand synthesis; in the latter case RNA flaps form from lagging strand RNA primers."