Figure 2From: Secretory production of tetrameric native full-length streptavidin with thermostability using Streptomyces lividans as a host Sav standard sample and Sav nat produced in this study were evaluated using SDS-PAGE and biotin-avidin conjugation assay using biotin coated plates. (A) SDS-PAGE of Sav standard sample (Lane 1) and purified Savnat produced by S. lividans (Lane 2). (B) Biotin-avidin conjugation assays of Sav standard sample (diamonds), purified Savnat (circles), and BSA as a control (triangles).Back to article page