Expression of protein C
First Claim
1. A DNA sequence which codes for a protein having substantially the same biological activity as human protein C or human activated protein C, said sequence further coding for the pre-pro peptide of factor VII.
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Abstract
Genomic and cDNA sequences coding for a protein having substantially the same biological activity as human protein C and recombinant transfer vectors comprising these sequences are disclosed.
Methods are disclosed for producing a protein which has substantially the same biological activity as human protein C. The protein, which may be in the form of activated protein C, is produced by mammalian host cells transfected with a plasmid capable of integration in mammalian host cell DNA. The plasmid includes a promoter followed downstream by a nucleotide sequence which encodes a protein having substantially the same structure and/or activity as human protein C, the nucleotide sequence being followed downstream by a polyadenylation signal.
49 Citations
20 Claims
- 1. A DNA sequence which codes for a protein having substantially the same biological activity as human protein C or human activated protein C, said sequence further coding for the pre-pro peptide of factor VII.
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2. A DNA sequence which codes for a protein having substantially the same biological activity as human protein C or human activated protein C, said sequence further coding for the amino acid sequence Arg-Arg-Lys-Arg at the cleavage site between the light and heavy chains.
- 3. An expression vector capable of integration in mammalian host cell DNA, said expression vector including a promoter followed downstream by a nucleotide sequence which encodes a protein having substantially the same biological activity as human protein C or human activated protein C, said nucleotide sequence further encoding the pre-pro peptide of factor VII, said nucleotide sequence being followed downstream by a polyadenylation signal, wherein transcription of the nucleotide sequence is directed by the promoter.
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4. An expression vector capable of integration in mammalian host cell DNA, said expression vector including a promoter followed downstream by a nucleotide sequence which encodes the pre-pro peptide of protein C operably linked to a sequence which encodes a protein having substantially the same biological activity as human protein C or human activated protein C, said nucleotide sequence further encoding the amino acid sequence Arg-Arg-Lys-Arg at the cleavage site between the light and heavy chains, said nucleotide sequence being followed downstream by a polyadenylation signal, wherein transcription of the nucleotide sequence is directed by the promoter.
- 5. Isolated mammalian cells transfected with an expression vector capable of integration in mammalian host cell DNA, said expression vector including a promoter followed downstream by a nucleotide sequence which encodes a protein having substantially the same biological activity as human protein C, said nucleotide sequence further encoding the pre-pro peptide of factor VII, said nucleotide sequence being followed downstream by a polyadenylation signal, wherein transcription of the nucleotide sequence is directed by the promoter.
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6. Isolated mammalian cells transfected with an expression vector capable of integration in mammalian host cell DNA, said expression vector including a promoter followed downstream by a nucleotide sequence which encodes the pre-pro peptide of protein C operably liked to a sequence which encodes a protein having substantially the same biological activity as human protein C, said nucleotide sequence further encoding the amino acid sequence Arg-Arg-Lys-Arg at the cleavage site between the light and heavy chains, said nucleotide sequence being followed downstream by a polyadenylation signal, wherein transcription of the nucleotide sequence is directed by the promoter.
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7. A method for producing a protein which, upon activation, has substantially the same biological activity as human activated protein C, comprising:
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introducing into an isolated mammalian host cell an expression unit comprising a sequence which encodes a protein having substantially the same biological activity as human protein C, said sequence further coding for the prepro peptide of Factor VII; growing said mammalian host cell in an appropriate medium; isolating the protein product encoded by said expression unit and produced by said mammalian host cell; and activating the protein product to produce a protein having substantially the same biological activity as human activated protein C. - View Dependent Claims (8, 9, 10, 11)
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12. A method for producing a protein which has substantially the same biological activity as human activated protein C, comprising:
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introducing into an isolated mammalian host cell an expression unit comprising a sequence which encodes the pre-pro peptide of protein C operably linked to a sequence which encodes a protein having substantially the same biological activity as human activated protein C, said sequence further encoding the amino acid sequence Arg-Arg-Lys-Arg at the cleavage site between the light and heavy chains; growing said mammalian host cell in an appropriate medium; and isolating the protein product encoded by said expression unit and produced by said mammalian host cells. - View Dependent Claims (13, 20)
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14. A method for producing a protein which, upon activation, has substantially the same biological activity as human activated protein C, comprising:
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introducing into an isolated mammalian host cell an expression unit comprising a sequence which encodes the pre-pro peptide of protein C operably linked to a sequence which encodes a protein having substantially the same biological activity as human protein C, said sequence further coding for the amino acid sequence Arg-Arg-Lys-Arg at the cleavage site between the light and heavy chains; growing said mammalian host cell in an appropriate medium; isolating the protein product encoded by said expression unit and produced by said mammalian host cell; and activating the protein product to produce a protein having substantially the same biological activity as human activated protein C. - View Dependent Claims (15, 16)
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Specification