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Towards Characterization of Serum Antibodies Derived from Genetic Immunization and that Recognize Membrane Proteins of Therapeutic Interest

Description
Structure is a critical component in drug development. This project supports antibody- facilitated structure determination for the following eleven membrane proteins: the human histamine and dopamine G protein-coupled receptors (HRH4 and DRD2) involved in a wide variety of pathologies such as allergies, inflammation, asthma, pain along with Parkinson's and schizophrenia…

Structure is a critical component in drug development. This project supports antibody- facilitated structure determination for the following eleven membrane proteins: the human histamine and dopamine G protein-coupled receptors (HRH4 and DRD2) involved in a wide variety of pathologies such as allergies, inflammation, asthma, pain along with Parkinson's and schizophrenia respectively, the human cystic fibrosis transmembrane conductance regulator (CFTR), the human NaV1.8 voltage-gated sodium ion channel, the human TPC2 two-pore channel, the SARS virus proteins 3a, E and M, the MERS virus protein E and M, and the malarial chloroquine resistance transporter (PfCRT). Serum antibodies against these proteins were generated by genetic immunization, and both in vitro and in vivo expressed membrane proteins were created to characterize the serum antibodies. Plasmid clones were generated for genetic immunization, in vitro protein expression, and in vivo expression (HEK293T transfection). Serum antibodies were generated by genetic immunization of mice by gene gun. Genetic immunization promotes an immune response that allows for the generation of antibodies in the absence of purified protein. In vitro expression was accomplished through the novel technique: in vitro translation with hydrophobic magnetic beads (IVT-HMB). Transfections were performed using the HEK293T cell line to express the protein in vivo. The generated protein was then used in gel electrophoresis and silver stain and/or Western blot analyses to identify and visualize the proteins. These expressed proteins will allow for forthcoming characterization of the generated antibodies. The resulting antibodies will in turn enable structure determination of these important membrane proteins by co-crystallization.
ContributorsDrotar, Beniamin (Author) / Fromme, Petra (Thesis director) / Hansen, Debra T. (Committee member) / School of Molecular Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2017-05