15 amino acids near the center of human SCUBE3.

• Can be used to block antibody activity completely in WB by incubating with equal volume of antibody for 30 min at 37°C.

PBS pH 7.2 (10 mM NaH2PO4, 10 mM Na2HPO4, 130 mM NaCl) containing 0.1% bovine serum albumin and 0.02% sodium azide