Abstract: The invention relates to methods for propagating viruses. In particular, the invention provides optimized conditions for propagating viruses. Optimization of the following parameters are provided: lipid concentrates as supplements to the medium, temperature shift from pre-infection to post-infection, multiplicity of infection, direct bead-to-bead transfer and serum supplementation of pre-infection medium. In particular, the invention provides for the first time a method for propagating a virus by culturing cells that are infected with the virus in a medium comprising chemically defined lipid concentrate (CDLC). In another claim, the CDLC is added to medium that is substantially free of serum for culture of virus-infected cells.

Abstract: Polypeptides capable of regulating signal transduction, which preferably exhibit kinase activity, or antibodies against such polypeptides that inhibit the interaction of these polypeptides with other mediators of signal transduction, may be used in the identification, prevention or treatment of disease, preferably cardiac disease, in mammalian hosts. In addition, these polypeptides can facilitate the identification or isolation of additional mediators of signal transduction associated with disease, preferably cardiac disease, which in turn may also be used in the identification, prevention or treatment of disease, preferably cardiac disease, in mammals.

Abstract: The present invention features methods of producing a multimeric protein in a hybrid, recombinant cell, as well as for identifying recombinant cells expressing heavy chain which cells are useful in production of such hybrid cells. In the method of the invention, at least first and second recombinant cells are engineered to contain a first and second expression cassette, respectively, which expression cassettes contain an amplifiable marker and encode first and second components of the multimeric protein. The recombinant cells are then fused to produce a hybrid cell expressing the multimeric protein. The hybrid cell is then cultured to provide for amplification of the DNA encoding the first and second multimeric protein components. The methods of the invention are widely applicable to the production of proteins having two or more components.

Abstract: The present invention features methods of producing a multimeric protein in a hybrid, recombinant cell, as well as for identifying recombinant cells expressing heavy chain which cells are useful in production of such hybrid cells. In the method of the invention, at least first and second recombinant cells are engineered to contain a first and second expression cassette, respectively, which expression cassettes contain an amplifiable marker and encode first and second components of the multimeric protein. The recombinant cells are then fused to produce a hybrid cell expressing the multimeric protein. The hybrid cell is then cultured to provide for amplification of the DNA encoding the first and second multimeric protein components. The methods of the invention are widely applicable to the production of proteins having two or more components.

Abstract: Methods for isolating naked cuticle genes are provided. The naked cuticle nucleic acid compositions find use in identifying homologous or related proteins and the DNA sequences encoding such proteins; in producing compositions that modulate the expression or function of the protein; and in studying associated physiological pathways. In addition, modulation of the gene activity in vivo is used for prophylactic and therapeutic purposes, such as identification of cell type based on expression, and the like.

Abstract: Polypeptides capable of regulating signal transduction, which preferably exhibit kinase activity, or antibodies against such polypeptides that inhibit the interaction of these polypeptides with other mediators of signal transduction, may be used in the identification, prevention or treatment of disease, preferably cardiac disease, in mammalian hosts. In addition, these polypeptides can facilitate the identification or isolation of additional mediators of signal transduction associated with disease, preferably cardiac disease, which in turn may also be used in the identification, prevention or treatment of disease, preferably cardiac disease, in mammals.