Abstract: The present invention provides a method for the isolation of biological molecules by the adsorption of the molecules onto a mineral substrate in the presence of an appropriate mixture of salts and sufolane. Preferably, the biological molecules are nucleic acids. Compositions and kits for performing the process according to the invention are also provided.

Abstract: The present invention provides methods, compositions, and kits for the storage and stabilization of biological molecules. The methods comprise applying Tris(2-carboxyethyl)phosphine (TCEP) to at least one biological molecule bound to a solid substrate and storing in an organic solvent. Preferably, the biological molecules are nucleic acids. Compositions and kits for performing the process according to the invention are also provided.

Abstract: The present invention provides methods, compositions, and kits for the storage and stabilization of biological molecules. The methods comprise applying Tris(2-carboxyethyl)phosphine (TCEP) to at least one biological molecule bound to a solid substrate and storing in an organic solvent. Preferably, the biological molecules are nucleic acids. Compositions and kits for performing the process according to the invention are also provided.

Abstract: The present invention provides methods, compositions, and kits for identifying compounds useful in nucleic acid purification. The methods of the invention include identifying certain characteristics of organic solvents such as miscibility in water, dielectric constant, and the class of the solvent.

Abstract: The present invention provides a method for the isolation of biological molecules by the adsorption of the molecules onto a mineral substrate in the presence of an appropriate mixture of salts and sufolane. Preferably, the biological molecules are nucleic acids. Compositions and kits for performing the process according to the invention are also provided.

Abstract: The invention provides for polynucleotides and vectors comprising at least two tag sequences. The invention also provides for polynucleotides and vectors comprising a streptavidin binding peptide sequence and a calmodulin binding peptide sequence. The invention also provides for polynucleotides and vectors wherein a gene of interest is fused in frame to at least two tag sequences, for example, a streptavidin binding peptide sequence and a calmodulin binding peptide sequence. The invention also provides for the chimeric proteins encoded by these polynucleotides. The invention also provides for methods of using the polynucleotides of the invention for detecting and/isolating protein complexes or identifying a binding partner for a protein of interest.

Abstract: The present invention provides an automated system for purification of a substance of interest. The system generally comprises an instrument for moving fluids through the system, a reagent pack for storing fluids, and a purification cartridge. The cartridge comprises two filtration units for binding substances based on different physical properties. The cartridge also comprises rotary valves for control of movement of fluids on the cartridge. In preferred embodiments, the system is useful for purifying RNA from blood samples.

Abstract: The present invention provides a method for the isolation of biological molecules by the adsorption of the molecules onto a mineral substrate in the presence of an appropriate mixture of salts and dioxolane. Preferably, the biological molecules are nucleic acids. Compositions and kits for performing the process according to the invention are also provided.

Abstract: The invention provides for polynucleotides and vectors comprising at least two tag sequences. The invention also provides for polynucleotides and vectors comprising a streptavidin binding peptide sequence and a calmodulin binding peptide sequence. The invention also provides for polynucleotides and vectors wherein a gene of interest is fused in frame to at least two tag sequences, for example, a streptavidin binding peptide sequence and a calmodulin binding peptide sequence. The invention also provides for the chimeric proteins encoded by these polynucleotides. The invention also provides for methods of using the polynucleotides of the invention for detecting and/isolating protein complexes or identifying a binding partner for a protein of interest.