Western Blot analysis of CD19 expression in transfected 293T cell line by CD19 polyclonal antibody. Lane 1: CD19 transfected lysate (61.1kD). Lane 2: Non-transfected lysate.

Proximity Ligation Analysis (PLA) of protein-protein interactions between CD19 and CD82. HeLa cells were stained with CD19 rabbit purified polyclonal 1:1200 and CD82 mouse monoclonal antibody 1:50. Signals were detected by 30 Detection Kit 613 (red), and nuclei were counterstained with DAPI (blue). Each red dot represents the detection of protein-protein interaction complex.