1H, 13C and 15N resonance assignments of the N-terminal intrinsically disordered region and WGR domain of human PARP2

Poly(ADP-ribose) polymerase 2 (PARP2) is a key sensor of DNA single-strand breaks that catalyzes ADP-ribosylation of itself and other substrates to initiate DNA repair. Human PARP2 contains an intrinsically disordered N-terminal domain (NTD) that mediates chromatin association and nuclear localization, a central WGR domain that recognizes DNA breaks, and a catalytic domain responsible for poly(ADP-ribose) synthesis. Despite its importance in genome maintenance and as a target of clinical PARP inhibitors, detailed information on the structural and dynamic properties of the NTD and WGR domains has remained limited. Here, we report the 1H, 13C, and 15N resonance assignments of the N-terminal intrinsically disordered region (residues 1–89) and the WGR domain (residues 90–212) of human PARP2. Resonance assignments were first obtained separately for each domain and subsequently transferred to a combined NTD–WGR construct. These assignments provide a foundation for future studies investigating the conformational dynamics, DNA recognition mechanisms, and allosteric regulation of PARP2 in chromatin and repair signaling.