Fig. 4

Gel electrophoresis of crude proteins with antimicrobial activity from KKU1. a Native-PAGE stained with Coomassie Brilliant blue of (1) size marker and (2) the crude proteins from culture supernatant of B. amyloliquefaciens KKU1. b The gel strip of control (1) and precipitated proteins from Native-PAGE (2) that were placed on B. pseudomallei lawns show clear inhibition zones from the action of active compounds. c The SDS-PAGE staining by silver stain of extracted proteins from clear zone positions on Native-PAGE (1) from the lower arrow and (2) from the upper arrow