Abstract: The present invention provides highly efficient methods, and compositions related thereto, for generating high titer human antibodies or antibody fragments thereof in a mammalian subject. The methods comprise administering a virus or virus-like particle to a mammal comprising heterologous immune cells and isolating a population of immunoglobulin-producing cells from the mammal, thereby producing the antibodies or antibody fragments thereof.

Abstract: The present invention provides highly efficient methods, and compositions related thereto, for generating high titer human antibodies or antibody fragments thereof in a mammalian subject. The methods comprise administering a virus or virus-like particle to a mammal comprising heterologous immune cells and isolating a population of immunoglobulin-producing cells from the mammal, thereby producing the antibodies or antibody fragments thereof.

Abstract: Aspects of the disclosure relate to packagable RNA constructs with minimal intervening viral sequences. These constructs can be used to generate lentiviral viruses encoding large genes capable of transducing primary human cells.

Abstract: The present invention provides highly efficient methods, and compositions related thereto, for generating high titer human antibodies or antibody fragments thereof in a mammalian subject. The methods comprise administering a virus or virus-like particle to a mammal comprising heterologous immune cells and isolating a population of immunoglobulin-producing cells from the mammal, thereby producing the antibodies or antibody fragments thereof.

Abstract: A nucleic acid is provided which encodes a human TRIM-cyclophilin A fusion sequence encoding a human TRIM-CypA fusion protein which is active as an anti-viral agent, and in particular, as an anti-HIV-1 agent. Also provided is a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. Also provided is an isolated polynucleotide encoding a human TRIM-CypA fusion protein, or variants thereof retaining the TRIM and cyclophilin A activities. Also provided are compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, methods are provided for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: The invention provides an isolated nucleic acid encoding a TRIM-cyclophilin A fusion sequence encoding a TRIMcyp fusion protein which is active as an anti-viral agent, and in particular an anti-HIV-1 agent. The invention provides for a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. The invention provides for an isolated polynucleotide encoding a TRIM-cyclophilin fusion protein, or variants thereof retaining the TRIM and cyclophilin activities. The invention provides for compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, the invention provides for methods for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: The invention provides an isolated nucleic acid encoding a TRIM-cyclophilin A fusion sequence encoding a TRIMcyp fusion protein which is active as an anti-viral agent, and in particular an anti-HIV-1 agent. The invention provides for a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. The invention provides for an isolated polynucleotide encoding a TRIM-cyclophilin fusion protein, or variants thereof retaining the TRIM and cyclophilin activities. The invention provides for compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, the invention provides for methods for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: A nucleic acid is provided which encodes a human TRIM-cyclophilin A fusion sequence encoding a human TRIM-CypA fusion protein which is active as an anti-viral agent, and in particular, as an anti-HIV-1 agent. Also provided is a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. Also provided is an isolated polynucleotide encoding a human TRIM-CypA fusion protein, or variants thereof retaining the TRIM and cyclophilin A activities. Also provided are compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, methods are provided for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: The invention provides an isolated nucleic acid encoding a TRIM—cyclophilin A fusion sequence encoding a TRIMcyp fusion protein which is active as an anti-viral agent, and in particular an anti-HIV-1 agent. The invention provides for a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. The invention provides for an isolated polynucleotide encoding a TRIM-cyclophilin fusion protein, or variants thereof retaining the TRIM and cyclophilin activities. The invention provides for compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, the invention provides for methods for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: The invention provides an isolated nucleic acid encoding a TRIM—cyclophilin A fusion sequence encoding a TRIMcyp fusion protein which is active as an anti-viral agent, and in particular an anti-HIV-1 agent. The invention provides for a nucleic acid encoding a polypeptide having both TRIM activity and cyclophilin activity. The invention provides for an isolated polynucleotide encoding a TRIM-cyclophilin fusion protein, or variants thereof retaining the TRIM and cyclophilin activities. The invention provides for compositions thereof, antibodies that specifically bind thereto, and vectors and host cells comprising the nucleic acid or polypeptide. In addition, the invention provides for methods for treating or preventing viral infection, or reducing viral load in a subject comprising administering the nucleic acid, polypeptide, vector, or composition to the subject in an amount effective to treat or prevent the viral infection.

Abstract: The human immunodeficiency virus type 1 (HIV-1) gag gene product is capable of directing the assembly of virion particles independent of other viral elements. The Gag protein also plays an important role during the early stages of viral replication. Employing the yeast two-hybrid system, a cDNA expression library was screened and two host proteins identified. These proteins, designated cyclophilins A and B (CyPsA and B), interacted specifically with the HIV-1 Gag polyprotein Pr55.sup.gag. Glutathione S-transferase-CyP fusion proteins bind tightly to Pr55.sup.gag in vitro. Cyclosporin A (CsA) efficiently disrupts the Gag-CyPA binding interaction. The identification of novel compounds capable of abrogating this protein-protein interaction employing the disclosed screening assay will facilitate the development of HIV-1 antiviral agents.