1.13.12.5 catalytic domain (19 kDa) is expressed using a cold-induced expression system in Escherichia coli as His-tagged fusion proteins 1.13.12.5 expressed as a soluble form in Escherichia coli BL21(DE3)pLysS (Novagen) containing the expression vector pET-21a inserted with cDNA of Renilla luciferase 1.13.12.5 expressed in Escherichia coli 1.13.12.5 expressed in HEK-293T cells 1.13.12.5 expressed using a cold-induced expression system in Escherichia coli as His-tagged fusion proteins 1.13.12.5 expression in 293T HEK fibroblasts and HF8 human fibroblasts 1.13.12.5 expression in Arabidopsis 1.13.12.5 expression in Chlamydomonas reinhardtii 1.13.12.5 expression in CHO cells and HepG2 cells 1.13.12.5 expression in CHO-K1 cells and PC12D cells