Francis Dwulet - Greenwood IN, US Neil Balgobin - Carmel IN, US Robert McCarthy - Carmel IN, US
International Classification:
C12P021/04 C12P021/02 C07K001/22
US Classification:
435/069700, 530/413000, 435/068100, 530/344000
Abstract:
A hybrid polypeptide composed of an identification peptide and a desired functional protein are produced by recombinant DNA techniques. A DNA expression vector is constructed that includes segments of DNA coding for the identification peptide and the desired functional protein. The identification peptide consists of a specific sequence of amino acids that has the desired affinity for a non-antibody capture protein. This peptide maybe linked to either the amino or carboxyl terminal of the functional protein. The identification peptide may or may not contain a sequence of amino acids that can be fragmented by sequence specific proteases or chemical agents to yield the native protein. The hybrid polypeptide produced by either cell or cell-free based expression systems is now suitable for further processing. This fusion protein can be purified by affinity chromatographic techniques using an immobilized non-antibody capture protein that has the desired affinity for the identification peptide. Alternately the capture protein may contain a label that will allow for the tracking of the functional protein in the system being studied.
Francis Dwulet - Greenwood IN, US Neil Balgobin - Carmel IN, US Robert McCarthy - Carmel IN, US
International Classification:
C12P021/04 C12N009/00
US Classification:
435/069700, 435/183000, 435/320100, 435/325000
Abstract:
A hybrid polypeptide composed of an identification peptide and a desired functional protein are produced by recombinant DNA techniques. A DNA expression vector is constructed that includes segments of DNA coding for the identification peptide and the desired functional protein. The identification peptide consists of a specific sequence of amino acids that has the desired affinity for a non-antibody capture protein. This peptide maybe linked to either the amino or carboxyl terminal of the functional protein. The identification peptide may or may not contain a sequence of amino acids that can be fragmented by sequence specific proteases or chemical agents to yield the native protein. The hybrid polypeptide produced by either cell or cell-free based expression systems is now suitable for further processing. This fusion protein can be purified by affinity chromatographic techniques using an immobilized non-antibody capture protein that has the desired affinity for the identification peptide. Alternately the capture protein may contain a label that will allow for the tracking of the functional protein in the system being studied.
Francis Dwulet - Greenwood IN, US Neil Balgobin - Carmel IN, US Robert McCarthy - Carmel IN, US
International Classification:
C12P021/06
US Classification:
435068100
Abstract:
A hybrid polypeptide composed of an identification peptide and a desired functional protein are produced by recombinant DNA techniques. A DNA expression vector is constructed that includes segments of DNA coding for the identification peptide and the desired functional protein. The identification peptide consists of a specific sequence of amino acids that has the desired affinity for a non-antibody capture protein. This peptide maybe linked to either the amino or carboxyl terminal of the functional protein. The identification peptide may or may not contain a sequence of amino acids that can be fragmented by sequence specific proteases or chemical agents to yield the native protein. The hybrid polypeptide produced by either cell or cell-free based expression systems is now suitable for further processing. This fusion protein can be purified by affinity chromatographic techniques using an immobilized non-antibody capture protein that has the desired affinity for the identification peptide. Alternately the capture protein may contain a label that will allow for the tracking of the functional protein in the system being studied.
Strand Displacement Assay And Complex Useful Therefor
James S. Eadie - Indianapolis IN Neil G. Balgobin - Carmel IN Harvey Buck - Weilheim, DE
Assignee:
Boehringer Mannheim Corporation - Indianapolis IN
International Classification:
C12Q 168
US Classification:
435 6
Abstract:
The invention relates to an improvement in the strand displacement assay. Probes that are at least 20 nucleotide bases in length, but are no more than 40 bases in length, are used. These short probes permit detection and discrimination down to the order of a single base.