(EN)
An expression vector is disclosed which contains a promoter DNA; a DNA encoding a peptide having a defined amino acid sequence and having secretion signal activity; and a DNA encoding an intended protein or a cloning site for insertion of the DNA encoding an intended protein. An expression vector is also disclosed which contains a promoter DNA; a DNA encoding any peptide having a defined amino acid sequence and having secretion signal activity; a DNA encoding an intended protein or a cloning site for insertion of the DNA encoding an intended protein; and a DNA encoding an anchor domain. The peptide having secretion signal activity allows for secretory production and cell surface display of a protein with high activity, in yeast. According to the present invention, a secretion signal peptide is provided which stably has higher secretion activity ability It is also an object of the present invention to provide a secretion signal peptide that stably has higher secretion ability than that of a conventionally used secretion signal peptide in secretory production and cell surface display of a protein.