Abstract: Single AAV vector constructs for regulated expression of an immunoglobulin molecule or fragment thereof and methods of making and using the same are described. The AAV vectors comprise a regulated promoter operably linked to the coding sequence for a first and second immunoglobulin coding sequence, a sequence encoding a self-processing cleavage site between the coding sequence for the first and second immunoglobulin coding sequence and a additional proteolytic cleavage site, which provides a means to remove the self processing peptide sequence from an expressed immunoglobulin molecule or fragment thereof. The vector constructs find utility in enhanced production of biologically active immunoglobulins or fragments thereof in vitro and in vivo.

Abstract: Lentivector constructs for expression of recombinant proteins, polypeptides or fragments thereof and methods of making the same are described. The lentivectors typically have a self-processing cleavage sequence between a first and second protein or polypeptide coding sequence allowing for expression of a functional protein or polypeptide under operative control of a single promoter and may further include an additional proteolytic cleavage sequence which provides a means to remove the self-processing cleavage sequence from the expressed protein or polypeptide. The vector constructs find utility in methods relating to enhanced production of biologically active proteins, such as immunoglobulins or fragments thereof in vitro and in vivo.

Abstract: Single AAV vector constructs for expression of an immunoglobulin molecule or fragment thereof and methods of making and using the same are described. The AAV vectors comprise a self-processing cleavage sequence between a first and second immunoglobulin coding sequence allowing for expression of a functional antibody molecule using a single promoter. The vector constructs may further include an additional proteolytic cleavage sequence which provides a means to remove the self processing peptide sequence from an expressed immunoglobulin molecule or fragment thereof. The vector constructs find utility in enhanced production of biologically active immunoglobulins or fragments thereof in vitro and in vivo.

Abstract: Cell specific replication-competent viral vectors comprising a self processing peptide cleavage sequence are provided. The targeted replication-competent viral vectors include two or more co-transcribed genes under transcriptional control of the same heterologous transcriptional regulatory element (TRE), wherein at least a second gene is under translational control of a self processing cleavage sequence or 2A sequence. Exemplary vector constructs may further include an additional proteolytic cleavage site which provides a means to remove the self processing peptide sequence from the viral vector.

Abstract: Vector constructs for expression of two or more functional proteins or polypeptides under operative control of a single promoter and methods of making and using the same are described. The vectors comprise a self-processing cleavage site between each respective protein or polypeptide coding sequence. The vector constructs include the coding sequence for a self-processing cleavage site and may further include an additional proteolytic cleavage sequence which provides a means to remove the self processing peptide sequence from expressed protein(s) or polypeptide(s). The vector constructs find utility in methods for enhanced production of biologically active proteins and polypeptides in vitro and in vivo.

Abstract: Single vector constructs for expression of an immunoglobulin molecule or fragment thereof and methods of making and using the same are described. The vectors comprise a self-processing cleavage sequence between a first and second immunoglobulin coding sequence allowing for expression of a functional antibody molecule using a single promoter. The vector constructs include the coding sequence for a self-processing cleavage site and may further include an additional proteolytic cleavage sequence which provides a means to remove the self processing peptide sequence from an expressed immunoglobulin molecule or fragment thereof. The vector constructs find utility in methods for enhanced production of biologically active immunoglobulins or fragments thereof in vitro or in vivo.

Abstract: Single vector constructs for expression of a functional antibody molecule are described. The vectors have a self-processing cleavage site between two heterologous DNA coding sequences allowing for expression of two coding sequences using a single promoter. Exemplary vector constructs comprise a foot and mouth disease virus (FMDV) 2A sequence. The vector constructs can be used in methods relating to antibody delivery and therapy and in the production of a biologically active antibody or fragment thereof.