Abstract: A pseudotyped baculovirus comprises a deletion, inactivation or reduction from regulation of a baculovirus envelope protein gene, and is engineered to express an envelope protein from another virus or cell, or another protein or molecule that facilitates entry of the baculovirus into a non-host cell, or provided with a heterologous envelope protein or another protein or molecule that facilitates entry of the baculovirus into a non-host cell by other suitable means. Such baculoviruses can be used to efficiently deliver genes to mammalian cells or organisms, and such genes can be expressed either from the baculovirus genome, or integrated into the mammalian cell genome, and can be used for expression of proteins such that purification of secreted or other protein products does not require removal of contaminating baculovirus particles or baculovirus envelope proteins.

Abstract: A pseudotyped baculovirus comprises a deletion, inactivation or reduction from regulation of a baculovirus envelope protein gene, and is engineered to express an envelope protein from another virus or cell, or another protein or molecule that facilitates entry of the baculovirus into a non-host cell, or provided with a heterologous envelope protein or another protein or molecule that facilitates entry of the baculovirus into a non-host cell by other suitable means. Such baculoviruses can be used to efficiently deliver genes to mammalian cells or organisms, and such genes can be expressed either from the baculovirus genome, or integrated into the mammalian cell genome, and can be used for expression of proteins such that purification of secreted or other protein products does not require removal of contaminating baculovirus particles or baculovirus envelope proteins.

Abstract: A pseudotyped baculovirus comprises a deletion, inactivation or reduction from regulation of a baculovirus envelope protein gene, and is engineered to express an envelope protein from another virus or cell, or another protein or molecule that facilitates entry of said baculovirus into a non-host cell, or provided with a heterologous envelope protein or another protein or molecule that facilitates entry of said baculovirus into a non-host cell by other suitable means. Such baculoviruses can be used to efficiently deliver genes to mammalian cells or organisms, and such genes can be expressed either from the baculovirus genome, or integrated into the mammalian cell genome, and can be used for expression of proteins such that purification of secreted or other protein products does not require removal of contaminating baculovirus particles or baculovirus envelope proteins.

Abstract: A triple host vector is described which is capable of expressing an inserted protein coding DNA sequence in any of three distinct host systems. The vector includes three promoters, one each for vertebrate, bacterial and insect host cells, so that the protein coding sequence can be cloned into the vector once and the vector can be used to express protein in all three types of host cells. The arrangement and selection of the promoters contributes to expression characteristics in all three host systems that is comparable to single host expression vectors.

Abstract: A triple host vector is described which is capable of expressing an inserted protein coding DNA sequence in any of three distinct host systems. The vector includes three promoters, one each for vertebrate, bacterial and insect host cells, so that the protein coding sequence can be cloned into the vector once and the vector can be used to express protein in all three types of host cells. The arrangement and selection of the promoters contributes to expression characteristics in all three host systems that is comparable to single host expression vectors.

Abstract: A pseudotyped baculovirus comprises a deletion, inactivation or reduction from regulation of a baculovirus envelope protein gene, and is engineered to express an envelope protein from another virus or cell, or another protein or molecule that facilitates entry of said baculovirus into a non-host cell, or provided with a heterologous envelope protein or another protein or molecule that facilitates entry of said baculovirus into a non-host cell by other suitable means. Such baculoviruses can be used to efficiently deliver genes to mammalian cells or organisms, and such genes can be expressed either from the baculovirus genome, or integrated into the mammalian cell genome, and can be used for expression of proteins such that purification of secreted or other protein products does not require removal of contaminating baculovirus particles or baculovirus envelope proteins.