Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: The present disclosure generally relates to genetic engineering of bacteria. More particularly, the present disclosure describes genetic engineering of E. coli to create mutant O-antigen ligase, as well as novel lipopolysaccharide molecules resulting from that genetic engineering. Methods for using those novel molecules are also described.

Abstract: An open reading frame DNA vector is presented having a promoter-translation start region, and adjacent thereto and downstream therefrom, a first coding segment having a start codon, a second coding segment coding for detectable protein, and an insertion region between said first and second coding regions having an insertion site and being of such length that the first and second coding segments are not in reading frame phase with each other. A method for the cloning and positive selection of a DNA segment having an open reading frame is also presented, as well as a tribrid protein wherein each terminal region and the mid-section is derived from a different gene, and a method of identifying and quantifying a protein or polypeptide without regard to its structure or biological function by using a DNA segment coding for said protein or polypeptide as the mid-section of the tribrid protein.

Abstract: This invention is a method for fusing, within a bacterial host, a gene for a cytoplasmic protein to a gene for a non-cytoplasmic protein, so that the hybrid protein produced is transported to, near, or beyond the cell surface for ease of collection and purification, or for immunological use. The invention also encompasses the fused gene created by the disclosed method.