ARIH1 antibody, ARI-1 antibody, ari antibody, ariadne antibody, hari antibody, hhari antibody, ubch7bp antibody, ARI antibody, HARI antibody, HHARI antibody, UBCH7BP antibody, AU021774 antibody, Ari antibody, Ari1 antibody, Hari antibody, Hhari antibody, Ubch7bp antibody, Uip77 antibody, wu:fa18d01 antibody, zgc:66364 antibody, ariadne RBR E3 ubiquitin protein ligase 1 antibody, ariadne RBR E3 ubiquitin protein ligase 1 L homeolog antibody, ariadne ubiquitin-conjugating enzyme E2 binding protein homolog 1 (Drosophila) antibody, Arih1 antibody, ARIH1 antibody, arih1 antibody, arih1.L antibody
Background
ARIH1 (ariadne homolog), also known as ubiquitin conjugating enzyme E2 binding protein 1, ARI, HARI, HHARI (human homolog of Drosophila ariadne), MOP-6 (monocyte protein 6) or UBCH7BP (UBCH7 binding protein), is a 557 amino acid cytoplasmic protein. Expressed in a wide variety of tissues, ARIH1 contains two RING-type zinc fingers and one IBR (in-between RING fingers)-type domain. ARIH1 is believed to be involved in protein degradation and protein translation. ARIH1 interacts with UBCH7 and is thought to function as an E3 ubiquitin-protein ligase (or as a component of an E3 complex) that, characteristic of E3 ligase proteins, accepts ubiquitin (in the form of a thioester) from an E2 ubiquitin-conjugating enzyme (UBCH7) and transfers that ubiquitin residue to substrates targeted for degradation. Specifically, ARIH1 interacts with and polyubiquitylates eIF4E2, thereby targeting it for proteasomal degradation.