Extracellular serine proteases from Stenotrophomonas maltophilia: Screening, isolation and heterologous expression in E. coli

► Screening of antagonistic bacteria for new detergent proteases. ► Encapsulation of cells in alginate beads for induction of protease activity. ► Cloning of four extracellular proteases from Stenotrophomonas maltophilia. ► Modifying of proteases for soluble expression in E. coli.