摘要:
Described is a method of targeting specific genes to the mammary gland which results in the efficient synthesis and secretion of biologically important molecules. Further, there is described as a composition of matter, a transgenic mammal having the ability to reproduce itself and being suitable for the secretion of biologically active agents into its milk. Additionally there is disclosed as a composition of matter, recombinant DNA gene complexes designed to integrate into a mammalian genome and to synthesize and secrete biological active agents into the milk. Furthermore, methods of producing and using altered milk are disclosed.
摘要:
The invention provides methods and systems for controlling the expression and, in general, the cellular activity of preselected polynucleic acid molecules. The invention also provides methods and systems for genetically modifying cells and multi-cellular organisms to impart resistance to viruses. The invention further provides methods and systems for genetically modifying cells and multi-cellular organisms so that they diagnostically report viral infection. One aspect of the invention involves rendering target polynucleic nucleic acid molecules as functional templates for at least one template-directed polynucleic acid polymerase so that utilization of the polynucleic acid molecule as a template by the polymerase modulates the activity of the targeted polynucleic acid molecule. Other aspects of the invention of the invention involve rendering selected polynucleic nucleic acid molecules as targets for RNA silencing, whether or not the silencing is polymerase-mediated.
摘要:
The present invention discloses a transgenic fly that expresses the Iowa mutant version of the human Anull42 peptide of human amyloid-null precursor protein (APP), and a double transgenic fly that expresses both the Tau protein and the human Anull42Iowa peptide of human amyloid-null precursor protein (APP). The transgenic flies of the present invention provide for models of neurodegenerative disorders, such as Alzheimer's disease. The invention further discloses methods for identifying genetic modifiers, as well as screening methods to identify therapeutic compounds to treat neurodegenerative disorders using the transgenic flies.
摘要:
The present invention relates to systems, methods, and compositions for cloning and sequencing insert nucleic acid sequences. In particular, the present invention provides vectors and vector components configured for multiplex cloning, multiplex sequencing, and fixed orientation cloning. The present invention also provides vectors and vector components that allow insert sequences that are deleterious to a host cell to be successfully cloned.
摘要:
The present invention provides a new, effective and efficient method of producing multimeric proteins in an individual. Multimeric proteins include associated multimeric proteins (two or more associated polypeptides) and multivalent multimeric proteins (a single polypeptide encoded by more than one gene of interest). Expression and/or formation of the multimeric protein in the individual is achieved by administering a polynucleotide cassette containing genes of interest that encode portions of the multimeric protein to the individual. The polynucleotide cassette may additionally contain one or more pro sequences, prepro sequences, cecropin prepro sequences, and/or cleavage site sequences.
摘要:
The present invention relates to a newly identified human aminopeptidase. The invention also relates to polynucleotides encoding the aminopeptidase. The invention further relates to methods using the aminopeptidase polypeptides and polynucleotides as a target for diagnosis and treatment in aminopeptidase-related disorders. The invention further relates to drug-screening methods using the aminopeptidase polypeptides and polynucleotides to identify agonists and antagonists for diagnosis and treatment. The invention further encompasses agonists and antagonists based on the aminopeptidase polypeptides and polynucleotides. The invention further relates to procedures for producing the aminopeptidase polypeptides and polynucleotides.
摘要:
The construction of transgenic animal models of human Alzheimer'disease, and methods of using the models to screen potential Alzheimer's disease therapeutics, are described. The models are characterized by pathologies similar to pathologies observed in Alzheimer's disease, based on expression of all three forms of the null-amyloid precursor protein (APP), APP695, APP751, and APP770, as well as various point mutations based on naturally occurring mutations, such as the London and Indiana familial Alzheimer's disease (FAD) mutations at amino acid 717, predicted mutations in the APP gene, and truncated forms of APP that contain the Anull region. Animal cells can be isolated from the transgenic animals or prepared using the same constructs with standard techniques such as lipofection or electroporation. The transgenic animals, or animal cells, are used to screen for compounds altering the pathological course of Alzheimer's disease as measured by their effect on the amount of APP, null-amyloid peptide, and numerous other Alzheimer's disease markers in the animals, the neuropathology of the animals, as well as by behavioral alterations in the animals.
摘要:
Applicants have identified 5 mutants associated with hepatitis B virus resistance to adefovir, a nucleotide analogue antiviral drug widely employed in the therapy of hepatitis B. In accord with this invention, reverse transcriptase mutants rtN236T, rtA181V, rtA181T and their corresponding surface antigen mutants sL173F and sL172trunc are provided. The mutant proteins, antibodies thereto and nucleic acids encoding the mutants have diagnostic value in monitoring and adjusting patient therapy with adefovir and in the therapy of patients infected with the mutants.
摘要:
Applicants have identified 5 mutants associated with hepatitis B virus resistance to adefovir, a nucleotide analogue antiviral drug widely employed in the therapy of hepatitis B. In accord with this invention, reverse transcriptase mutants rtN236T, rtA181V, rtA181T and their corresponding surface antigen mutants sL173F and sL172trunc are provided. The mutant proteins, antibodies thereto and nucleic acids encoding the mutants have diagnostic value in monitoring and adjusting patient therapy with adefovir and in the therapy of patients infected with the mutants.
摘要:
Methods for controlling sex determination in non-human mammals are provided, including constructs for the production of transgenic mammals and the non-human transgenic mammals themselves.