(A) SDS-PAGE of recombinant purified proteins. 1: MBP 120-180 calreticulin fragment; 2: MBP. (B) Inhibition of endothelial cell proliferation by MBP 120-180 calreticulin fragment. Fetal bovine heart endothelial cells (800 cells/well) were incubated for 5 days either in medium alone or medium supplemented with bFGF (15 ng/mL), with or without recombinant purified MBP 120-180 calreticulin peptide (1 μg/mL). The results of 8 experiments are expressed as mean cpm (±SD).