SWSAP1, an ATPase selectively activated by single-stranded DNA, is vital for homologous recombination repair (HRR) . In addition to ATPase activity, SWSAP1 independently binds DNA. Teaming up with ZSWIM7, it forms a complex crucial for HRR, with mutual stabilization. SWSAP1 interacts with key HRR proteins—RAD51, RAD51B, RAD51C, RAD51D, and XRCC3—underscoring its role in facilitating homologous recombination repair processes. SWSAP1 Protein, Human (His) is the recombinant human-derived SWSAP1 protein, expressed by E. coli , with N-6*His labeled tag.