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Upf1 | Regulator of nonsense transcripts 1 homolog; RNA-dependent helicase and ATPase required for nonsense- mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited to mRNAs upon translation termination and undergoes a cycle of phosphorylation and dephosphorylation; its phosphorylation appears to be a key step in NMD. The formation of an Upf1-Upf2-Upf3 surveillance complex is believed to activate NMD (By similarity). (1180 aa) | ||||
Ubc10 | Ubiquitin-conjugating enzyme E2-18 kDa; Ubiquitin-conjugating enzyme E2 that acts with the RBR family ligases LUBEL, ari-1 and possibly parkin. Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins (By similarity). Appears to be involved in the selective degradation of short-lived and abnormal proteins. Functions with ari-1 to control the subcellular localization and morphology of muscle nuclei (myonuclei) by regulating the protein levels and distribution of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex. Functions by mediating the [...] (154 aa) |