label: open form four-way junction DNA binding
label_lc: open form four-way junction dna binding
description: "Binding to a DNA segment containing the open form of a four-way junction, also known as a Holliday junction, a structure where two DNA double strands are held together by reciprocal exchange of two of the four strands, one strand each from the two original helices. The open form of a four-way junction can be diagrammed without any of the strands crossing over."