ARIH1 Proteins

Protein Information

E3 ubiquitin-protein ligase, which catalyzes ubiquitination of target proteins together with ubiquitin-conjugating enzyme E2 UBE2L3 (PubMed:15236971, PubMed:21532592, PubMed:24076655, PubMed:27565346, PubMed:23707686). Acts as an atypical E3 ubiquitin-protein ligase by working together with cullin-RING ubiquitin ligase (CRL) complexes and initiating ubiquitination of CRL substrates: associates with CRL complexes and specifically mediates addition of the first ubiquitin on CRLs targets (PubMed:27565346). The initial ubiquitin is then elongated by CDC34/UBE2R1 and UBE2R2 (PubMed:27565346). E3 ubiquitin-protein ligase activity is activated upon binding to neddylated cullin-RING ubiquitin ligase complexes (PubMed:24076655, PubMed:27565346). Plays a role in protein translation in response to DNA damage by mediating ubiquitination of EIF4E2, the consequences of EIF4E2 ubiquitination are however unclear (PubMed:25624349). According to a report, EIF4E2 ubiquitination leads to promote EIF4E2 cap-binding and protein translation arrest (PubMed:25624349). According to another report EIF4E2 ubiquitination leads to its subsequent degradation (PubMed:14623119). Acts as the ligase involved in ISGylation of EIF4E2 (PubMed:17289916). In vitro, controls the degradation of the LINC (LInker of Nucleoskeleton and Cytoskeleton) complex member SUN2 and may therefore have a role in the formation and localization of the LINC complex, and as a consequence, nuclear subcellular localization and nuclear morphology (PubMed:29689197). [UniProt]

Synonyms

ARI; ARI-1; ariadne homolog, ubiquitin-conjugating enzyme E2 binding protein, 1; ariadne RBR E3 ubiquitin protein ligase 1; ariadne, Drosophila, homolog of; ARIH1; DKFZp686O13120; E3 ubiquitin-protein ligase ARIH1; FLJ20329; FLJ93118; H7-AP2; HARI; HHARI; HUSSY-27; Monocyte protein 6; MOP6; MOP-6; Protein ariadne-1 homolog; UbcH7-binding protein; UBCH7BP; UbcM4-interacting protein; ubiquitin-conjugating enzyme E2-binding protein 1