UBAC1, GBDR1, KPC2, UBADC1, Ubiquitin-associated domain-containing protein 1, E3 ubiquitin-protein ligase subunit KPC2, Glialblastoma cell differentiation-related protein 1, Kip1 ubiquitination-promoting complex protein 2

UBAC1 belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein has two RRM domains that bind to RNAs.