This domain is found at the N-terminal end of the eukaryotic protein Ubiquitin-fold modifier 1 (Ufm1) specific protease 2 (UfSP2). UfSP2 is a cysteine protease which recognises and hydrolyses the peptide bond at the C-terminal Gly residue of the protein Ufm1, a ubiquitin- like modifier. This protein is organised into two domains: the catalytic C-terminal (Pfam:PF07910) and a N-terminal showing a six- stranded beta-sheet with five helices. This entry represents the most N-terminal beta-strand [1,2].

1: Two Novel Ubiquitin-fold Modifier 1 (Ufm1)-specific Proteases, UfSP1 and UfSP2. Kang SH, Kim GR, Seong M, Baek SH, Seol JH, Bang OS, Ovaa H, Tatsumi K, Komatsu M, Tanaka K, Chung CH; J Biol Chem. 2007;282:5256-5262. PMID:17182609

2: Structure of ubiquitin-fold modifier 1-specific protease UfSP2. Ha BH, Jeon YJ, Shin SC, Tatsumi K, Komatsu M, Tanaka K, Watson CM, Wallis G, Chung CH, Kim EE; J Biol Chem. 2011;286:10248-10257. PMID:21228277