ESD4 (EARLY IN SHORT DAYS 4); cysteine-type peptidase. similar to Ulp1 protease family protein [Arabidopsis thaliana] (TAIR:AT3G06910.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO70965.1); contains InterPro domain Peptidase C48, SUMO/Sentrin/Ubl1; (InterPro:IPR003653)