HeLa cells transiently expressing Mannosidase II-EGFP were immunostained with GFP recombinant antibody, VHH-rabbit IgG Fc fusion [CTK0201] (gfrb-20, 1:1,000) and Nano-Secondary? alpaca anti-human IgG/anti-rabbit IgG, recombinant VHH, Alexa Fluor? 647 [CTK0101, CTK0102] (srbAF647-1, 1:1,000). Scale bar, 10 μM.