Negative supercoiling facilitates human TOP3α-mediated decatenation of DNA braids via catenation junction melting
Sanjana Saravanan, Anno I Koetje, Graeme A. King, David Rueda, Luis Aragon
The paper shows that negative supercoiling enables TOP3α to resolve DNA braids by melting crossings into single-stranded DNA, facilitated by TRR and RPA.
bioRxiv · Sep 24, 2026 · PreprintMolecular Biology