(Sigma, 1:20 000), mouse anti-HA (Abmart, 1:1 000), mouse an- ti-Myc (Cwbiotech, Beijing, 1:5 000) , mouse anti-tubulin (Cwbio- tech, Beijing, 1:200 000), mouse anti-V5 (Invitrogen, 1:10 000), rabbit anti-Wts (from Dr K Irvine, Rutgers University, NJ, USA, 1:5 000...