Figure 3From: Secretory production of tetrameric native full-length streptavidin with thermostability using Streptomyces lividans as a host Sav nat , Sav ΔN and Sav ΔC produced in this study were evaluated using SDS-PAGE and biotin-avidin conjugation assay using nickel coated plates. (A) SDS-PAGE of purified Sav variants (Lane 1, SavΔN; Lane 2, SavΔC). (B) Biotin-avidin conjugation assays of each Sav and the variant, Savnat (circles), SavΔC (diamonds), and SavΔN (squares).Back to article page