RNA recognition motif 2 (RRM2) found in RNA-binding protein 5 (RBM5) and similar proteins
This subgroup corresponds to the RRM2 of RNA-binding protein 5 (RBM5 or LUCA15 or H37), RNA-binding protein 10 (RBM10 or S1-1) and similar proteins. RBM5 is a known modulator of apoptosis. It may also act as a tumor suppressor or an RNA splicing factor; it specifically binds poly(G) RNA. RBM10, a paralog of RBM5, may play an important role in mRNA generation, processing and degradation in several cell types. The rat homolog of human RBM10 is protein S1-1, a hypothetical RNA binding protein with poly(G) and poly(U) binding capabilities. Both, RBM5 and RBM10, contain two RNA recognition motifs (RRMs), also termed RBDs (RNA binding domains) or RNPs (ribonucleoprotein domains), two C2H2-type zinc fingers, and a G-patch/D111 domain.