Methods and compositions for high yield production of eukaryotic proteins

Abstract

The present invention provides an isolated nucleic acid comprising a first nucleotide sequence encoding an amino acid sequence comprising at least three positively charged amino acid residues, positioned upstream and in frame with a second nucleotide sequence encoding a protein. In addition, the present invention provides an isolated nucleic acid comprising a first nucleotide sequence encoding a DNA binding protein, positioned upstream and in frame with a second nucleotide sequence encoding a protein. An isolated nucleic acid is also provided, which comprises a first nucleotide sequence encoding a bacteriophage lambda repressor protein, positioned upstream and in frame with a second nucleotide sequence encoding a protein. The present invention further provides a method of producing a eukaryotic protein in a bacterial cell comprising: a) introducing the expression vector of this invention, wherein the second nucleotide sequence encodes a eukaryotic protein, into the bacterial cell; and b) culturing the bacterial cell under conditions whereby the second nucleotide sequence of the expression vector is expressed to produce the eukaryotic protein. A method of producing a eukaryotic protein in a bacterial cell in high yield is also provided, comprising: a) introducing the expression vector of this invention, wherein the second nucleotide sequence encodes a eukaryotic protein, into the bacterial cell; and b) culturing the bacterial cell under conditions whereby the second nucleotide sequence of the expression vector is expressed to produce the eukaryotic protein in high yield.

Dependencies are inferred from the claim text.