Shieldin complex subunit 2 (SHLD2)

Component of the shieldin complex, which has an essential role in repair of DNA double-stranded breaks (DSBs) (PubMed:29656893, PubMed:29789392). During G1 and S phase of the cell cycle, the intricate functions downstream of TP53BP1 to market non-homologous end joining (NHEJ) and suppress DNA end resection (PubMed:29656893, PubMed:29789392).

Mediates various NHEJ- dependent processes including immunoglobulin class-switch recombination, and fusion of unprotected telomeres (PubMed:29656893). .