Baylor College of Medicine

Other

University of Texas System

Southwest Foundation for Biomedical Research

Southwest Foundation for Biomedical Researche

James T Sparrow

Patrick Kanda

Ronald C Kennedy

Nancy Kneib-Cordonier

Robert E Lanford

Ralph B Arlinghaus

Joseph L Melnick

Louis C Smith

Darrell L Peterson

Gordon R Dreesman

Martha P Mims

Bruce S Keenan

Jochen Hauer

Frederick B Hollinger

Peptide-macromolecule complexes for delivery of nucleic acid to a cell. The nucleic acid carrier includes a binding complex. The binding complex contains a binding moiety which noncovalently binds to the nucleic acid. The binding complex can also contain a binding moiety which is associated with a surface ligand, nuclear ligand or a lysis agent. These may be associated with the binding moiety by spacers. In addition, the carrier may include a nucleic acid with a combination of the above binding complexes or binding moieties.

Lipophilic peptides for macromolecule delivery

A large pore polyamide resin is useful for large peptide and protein (protide) synthesis. A method of preparing the same comprises mixing a dimethylacrylamide monomer with an unsaturated or alkenoyl amine monomer, a cross-linker and water, homogeneously emulsifying the aqueous mixture with an organic solvent in the presence of an emulsifier, adjusting the pH of the aqueous mixture during polymerization to 6-8.5 to produce large pore resin beads, and isolating the beads. The beads may be used as a solid phase substrate for the synthesis of a polyamide/protide conjugate. The polyamide resin/protide conjugate may be used, without separation of the protide from the resin or subsequent purification, for immunizing mammals, including humans, against the protide, for affinity purifying immunological molecules binding to the protide, and for immunoassays.

Polyamide resin-protide conjugate, preparation and uses

Large pore polyamide resin and method of preparation thereof

Disclosed are peptidyl-resin conjugates made up of an immunogenic/antigenic peptide conjugated to a polyamide resin, wherein the peptide incorporates a helper T-cell epitope. The inclusion of a T-cell epitope in this peptide sequence provides particular benefits in the preparation of site-directed reagents intended as immunogens. In exemplary studies, a synthetic peptide predicted from Abelson murine leukemia virus abl oncogene (residues 389-403) was synthesized with a T-cell active epitope of 7 amino acids placed at its N-terminus (T-abl-resin). The T-abl-resin construct was found to greatly stimulate the immune response giving significantly higher specific antibody titers than abl-resin controls.

Methods and compositions for the preparation and use of site-directed

A polyamide resin for use in peptide and protein synthesis, and a method of preparing and using same. The polyamide resin is prepared by mixing a dimethylacrylamide monomer with an N-acrylyl-diaminoalkane functional monomer in an aqueous solution together with a cross-linker and emulsifying the aqueous solution in an organic solvent. An initiator and a promoter are added to polymerize the N-acrylyl-diaminoalkane functional monomer, dimethylacrylamide monomer, and cross-linker in the form of beads. The pH of the mixture is controlled during the polymerization. The beads are used as a solid phase for peptide and protein synthesis according to methods known in the art. The conjugate of the polyamide resin and the synthesized peptide or protein is used directly for immunoassays or immunization without the need for separation of the peptide or protein from the resin and subsequent purification.

Polyamide bound protide, method of use thereof and kit

A polyamide resin for use in peptide and protein synthesis, and a method of preparing and using same. The polyamide resin is prepared by cross-linking a dimethylacrylamide monomer by co-polymerization with a functional monomer in an aqueous solution, emulsifying the aqueous solution in an organic solvent and isolating the polyamide resin beads formed by adding an initiator and a promoter. The beads are used as a solid phase for peptide and protein synthesis according to methods known in the art. The conjugate of the polyamide resin and the synthesized peptide or protein is used directly for immunoassays or immunization without the need for separation of the peptide or protein from the resin and subsequent purification.

Polyamide resin and method for preparation of reagents for

A polyamide resin for use in peptide and protein synthesis, and a method of preparing and using same. The polyamide resin is prepared by mixing a dimethylacrylamide monomer with an N-acrylyl-diaminoalkane functional monomer in an aqueous solution together with a cross-linker and emulsifying the aqueous solution in an organic solvent. An initiator and a promoter are added to polymerize the N-acrylyl-diaminoalkane functional monomer, dimethylacrylamide monomer, and cross-linker in the form of beads. The pH of the mixture is controlled during the polymeriztion. The beads are used as a solid phase for peptide and protein synthesis according to methods known in the art. The conjugate of the polyamide resin and the synthesized peptide or protein is used directly for immunoassays or immuniaztion without the need for separation of the peptide or protein from the resin and subsequent purification.

Disclosed is synthesized dihydrotestosterone heptanoate, its method of synthesis, and its method of use as an androgenic hormone of male gynecomastia, as a hormonal probe, as well as other applications.

Biological methods utilizing dihydrotestosterone heptanoate

A composition for eliciting production of antibody to hepatitis B surface antigen and method of neutralizing the infectivity of hepatitis type B virus. A cyclic polypeptide is prepared having a disulfide bond in a hydrophilic region, namely residues 117-137 or 122-137 and an amino acid sequence unique from that associated with the native 25,000 molecular weight polypeptide derived from hepatitis B surface antigen.

Growing community of inventors

Houston, TX, United States of America

James T Sparrow