Figure 3.
Whole N-terminus domain of EnoBs is necessary as a signal for the secretion of recombinant GFP. Series deletion of N-terminus from its C-terminal were prepared and fused with GFP. Recombinant GFPs were expressed in B. subtilis. Soluble Intracellular and Extracellular samples were analyzed for GFP (middle panel) were detected using immunoblots with antibodies. SecA (upper panel) was used as a marker for no secretion, and chromosomal enolase (lower panel) as a marker for expression and secretion. Lane 1, GFP; lane 2, N140-GFP; lane 3, N126-GFP; lane 4, N118-GFP; lane 5, N109-GFP; lane 6, #106–123Eno-GFP.