Immunohistology staining on CDK12 overexpressed cytosection TS426399P5 with rabbit anti DDK clone OTIR5G2 C/N TA592569 at 1:2000 dilution 20m RT. Antibody staining was achieved with HIER Citrate pH6 , Polink1 with DAB chromogen detection kit (D11-18). Positive stain shown with the brown chromogen present. HEK293T cells were transfected with cDNA clone RC226399, 5 micron sections, 40x magnification