ATP dependent helicase RENT1, ATP-dependent helicase RENT1, Delta helicase, HUPF 1, HUPF1, KIAA0221, Nonsense mRNA reducing factor 1, NORF 1, NORF1, pNORF 1, pNORF1, Regulator of nonsense transcripts 1, RENT 1, RENT1, RENT1_HUMAN, Smg 2, Smg 2 homolog nonsense mediated mRNA decay factor, UP Framesht 1, Up framesht mutation 1 homolog S. cerevisiae, Up framesht mutation 1 homolog, Up framesht suppressor 1 homolog, Up-framesht mutation 1 homolog S. cerevisiae, Up-framesht suppressor 1 homolog, UPF 1, UPF 1 regulator of nonsense transcripts homolog, UPF1.
In eukaryotes, it is essential to have the ability to detect and degrade transcripts that lack full coding potential. Nonsense-mediated RNA decay (NMD) protects the organism by avoiding the translation of truncated peptides with dominant negative or deleterious gain-of-function potential. Rent1, a mammalian ortholog of Upflp, is essential for embryonic viability (13). Rent1 (also designated regulator of nonsense transcripts and HUpf1) contains an N-terminal zinc finger-like domain, NTPase domains and a region comprised of domains that define Rent1 as a superfamily group I helicase.
