Cysteine proteinases superfamily protein; FUNCTIONS IN: cysteine-type peptidase activity; INVOLVED IN: proteolysis; LOCATED IN: cellular_component unknown; CONTAINS InterPro DOMAIN/s: Peptidase C48, SUMO/Sentrin/Ubl1 (InterPro:IPR003653); BEST Arabidopsis thaliana protein match is: Ulp1 protease family protein (TAIR:AT5G45570.1); Has 315 Blast hits to 281 proteins in 53 species: Archae - 2; Bacteria - 21; Metazoa - 20; Fungi - 17; Plants - 180; Viruses - 0; Other Eukaryotes - 75 (source: NCBI BLink). AT1G37020