E3 ubiquitin-protein ligase SHPRH is a ubiquitously expressed protein that contains motifs characteristic of several DNA repair proteins, transcription factors, and helicases. SHPRH is a functional homolog of S. cerevisiae RAD5 and is involved in DNA repair. SHPRH is a member of the DEAD-like helicase superfamily, a diverse family of proteins involved in ATP-dependent RNA or DNA unwinding. This domain contains the ATP-binding region.