%0 Journal Article %T Discovery of HB-EGF binding peptides and their functional characterization in ovarian cancer cell lines %A Caixia Lian %A Hanqing Liu %A Lingling Ruan %A Ruyan Li %A Yanting Shen %A Zhigang Tu %J Archive of "Cell Death Discovery". %D 2019 %R 10.1038/s41420-019-0163-9 %X a Amino acid sequence of recombinant protein (His)6-sHB-EGF. The shadow area remarks His-tag (6£¿¡Á£¿His). The bold italic part indicates enterokinase cutting site. The underlined part represents human sHB-EGF (63¨C149 AA). b Verification of the expression of recombinant protein through 15% SDS-PAGE. M: protein marker, Lane 1: the lysate of BL21; Lane 2: BL21 containing pET-30a; Lane 3: BL21 containing pET-30a-His-HB-EGF without IPTG induction; Lane 4: BL21 containing pET-30a-His-HB-EGF with IPTG induction. c Verification of the expression of recombinant protein by western blot. Lanes 1¨C4 are identical to those in b. The antibody used here is anti-His antibody. d Verification of the expression of recombinant protein by western blot. Lane 1: the lysate of BL21 containing pET-30a-His-HB-EGF without IPTG induction; Lane 2: above BL21 with IPTG induction. The antibody used was anti-HB-EGF antibody. e SDS-PAGE after Ni-NTA and heparin affinity chromatography. Lanes 1 and 2: two most concentrated elution fractions from each affinity chromatography. f Detection of protein before and after enterokinase digestion by western blot. Lane 1: before enterokinase digestion. Lane 2: after enterokinase digestion. The antibody used was anti-HB-EGF antibod %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433920/