May play some important roles in inflammatory responses. Up-regulates IL-6 and TNF-alpha and induces apoptosis (By similarity). {ECO:0000250}. Biological Activity: Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human IL-20Ralpha and human IL-20Rbeta co-transfected murine BaF3 pro-B cells is less than 1.5ng/ml, corresponding to a specific activity of > 6.7*10e5 IU/mg. Sequence: LRRCLISTDM HHIEESFQEI KRAIQAKDTF PNVTILSTLE TLQIIKPLDV CCVTKNLLAF YVDRVFKDHQ EPNPKILRKI SSIANSFLYM QKTLRQCQEQ RQCHCRQEAT NATRVIHDNY DQLEVHAAAI KSLGELDVFL AWINKNHEVM SSA Molecular Weight: 17.9kD PubMed ID: 11196675, 12370360, 19906316, 16710414, 15340161, 12403790 Gene Name: IL19,ZMDA1 Swiss Prot: Q9UHD0 Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.