IL-20R beta Protein (IL20RB) is the beta subunit of IL-20 receptor, forms functional heterodimers with different subunit protein and involves in STAT3 activation pathway[1]. The IL-20RA/IL-20RB dimer is a receptor for IL-19, IL-20 and IL-24. The IL-22RA1/IL-20RB dimer is a receptor for IL-20 and IL-24[2]. IL-20R beta Protein is consists of 308 amino acids (M1-S311) with a transmembrane domain (230-254 a.a.). IL-20R beta Protein, Cynomolgus (HEK293, Fc) is fibronectin type-III domain-containing protein, produced in HEK293 cells with a C-Terminal Fc-tag.