Fig. 1
From: New approaches to achieve high level enzyme production in Streptomyces lividans
Schematic representation of the plasmids obtained. a. General diagram of expression plasmids. The plasmid has the E. coli pBR322 origin and the replication region for Streptomyces from pIJ101. b. Different plasmids with the promoters tested. pNX30 is the control plasmid with a promoterless xylanase gene. pNX24, xysAp: promoter of xysA gene from S. halstedii (U41627); pNUF5, pstSp: promoter of the pstS gene from S. lividans (AJ698727); pNX26, xylAp: xylose isomerase promoter from S. coelicolor (SCO1169); pNXHid, glpQp: promoter of a putative hydrolase from S. coelicolor (SCO1968); pNErmX, ermE*p: promoter of the erythromycin resistance ermE gene; pNvsi, vsip: promoter of the subtilisin inhibitor SSI from S. venezuelae (X98019); T1 and T2 are mmrt and fdt transcriptional terminators