In a ChIP assay, if Rep2 binds DNA at the break site and 1 kb away after 30 mins, it suggests:
Chromatin Immunoprecipitation time course following double-strand break induction provides insight into protein recruitment dynamics. Exclusive detection at break site initially reflects damage recognition. Subsequent detection both at break and one kilobase away after thirty minutes demonstrates progressive propagation along flanking chromatin. Such pattern indicates spreading of binding activity, oligomerization along DNA, recruitment of secondary repair factors or extension of chromatin modifications like gamma-H2AX domain. Transient binding would show disappearance, replication would invol
Ref: NCERT Biology Class XII Principles on Klenow fill-in labeling, Lehninger Chapter 9 DNA cloning techniques, and Molecular Cloning by Sambrook Chapter 10 documenting end-labeling of cohesive termini.