This entry represents the UBA-like (UBL) domain from the Human Homologue of Ariadne (HHARI) and its homologues, which are Ariadne subfamily E3 ubiquitin ligase proteins [1-4]. This domain binds to Ubiquitin and NEDD8 [3,4].

1: Structure of HHARI, a RING-IBR-RING ubiquitin ligase: autoinhibition of an Ariadne-family E3 and insights into ligation mechanism. Duda DM, Olszewski JL, Schuermann JP, Kurinov I, Miller DJ, Nourse A, Alpi AF, Schulman BA; Structure. 2013;21:1030-1041. PMID:23707686

2: Structural insights into the mechanism and E2 specificity of the RBR E3 ubiquitin ligase HHARI. Yuan L, Lv Z, Atkison JH, Olsen SK; Nat Commun. 2017;8:211. PMID:28790309

3: Structural Studies of HHARI/UbcH7 approximately Ub Reveal Unique E2 approximately Ub Conformational Restriction by RBR RING1. Dove KK, Olszewski JL, Martino L, Duda DM, Wu XS, Miller DJ, Reiter KH, Rittinger K, Schulman BA, Klevit RE; Structure. 2017;25:890-900. PMID:28552575

4: Ubiquitin ligation to F-box protein targets by SCF-RBR E3-E3 super-assembly. Horn-Ghetko D, Krist DT, Prabu JR, Baek K, Mulder MPC, Klugel M, Scott DC, Ovaa H, Kleiger G, Schulman BA; Nature. 2021;590:671-676. PMID:33536622