Isolated streptavidin-binding, competitively elutable peptide, this comprehensive fusion peptide, nucleic acid coding therefor, expression vector, methods for producing a recombinant fusion protein and methods for detecting and / or obtaining the fusion protein

摘要

An isolated streptavidin-binding, competitively-elutable peptide comprising at least two streptavidin-binding single modules, wherein the distance between the two individual modules is 0 and at most 50 amino acids and wherein a single module contains at least the sequence -His-Pro-Baa, wherein Baa is either glutamine, asparagine or methionine and wherein at least the other single moiety includes at least the sequence -Oaa-Xaa-His-Pro-Gln-Phe-Yaa-Zaa, where Oaa is either Trp, Lys or Arg, Xaa is any amino acid and Yaa and Zaa are either both represent Gly or Yaa represents Glu and Zaa represents Lys or Arg.