All lanes : Anti-FLAG tag antibody (DYKDDDDK) at 1:2000 dilutionLane 1: 12-tag recombinant protein Lysates/proteins at 20 �g per lane. SecondaryGoat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Observed band size : 50 kDaBlocking/Dilution buffer: 5% NFDM/TBST.