Production of membrane proteins in the milk of transgenic mammals
First Claim
Patent Images
1. A DNA construct comprising:
- as operably linked components, a DNA sequence encoding a cystic fibrosis transmembrane conductance regulator protein and a mammary gland specific promoter sequence wherein, upon expression of the DNA sequence, the cystic fibrosis transmembrane conductance regulator inserts into an apical membrane of a mammary cell so that said cystic fibrosis transmembrane conductance regulator protein is secreted in a milk fat globule.
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Abstract
Production of proteins not normally secreted through conventional pathways such as membrane proteins including, for example, CFTR associated with cystic fibrosis, is now made possible by collection of such protein from the milk of lactating transgenic animals.
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Citations
24 Claims
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1. A DNA construct comprising:
- as operably linked components, a DNA sequence encoding a cystic fibrosis transmembrane conductance regulator protein and a mammary gland specific promoter sequence wherein, upon expression of the DNA sequence, the cystic fibrosis transmembrane conductance regulator inserts into an apical membrane of a mammary cell so that said cystic fibrosis transmembrane conductance regulator protein is secreted in a milk fat globule.
- View Dependent Claims (2, 3, 4)
- 5. A DNA construct comprising, as operably linked components, a DNA sequence encoding a cystic fibrosis transmembrane conductance regulator protein and a beta-casein promoter.
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7. A method of producing a cystic fibrosis transmembrane conductance regulator protein in milk, said method comprising:
- providing a transgenic non-human female mammal which contains within its genome a DNA construct comprising, as operably linked components, a DNA sequence encoding said a cystic fibrosis transmembrane conductance regulator protein and a mammary gland specific promoter sequence, wherein, upon expression of the DNA sequence, said cystic fibrosis transmembrane conductance regulator protein inserts into an apical membrane of mammary epithelial cell of said female mammal, thereby producing said cystic fibrosis transmembrane conductance regulator protein in the milk of said female mammal.
- View Dependent Claims (8, 9)
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10. A milk fat globule membrane comprising a cystic fibrosis transmembrane conductance regulator protein wherein said milk fat globule membrane is from a transgenic non-human female mammal.
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11. A method of producing a cystic fibrosis transmembrane conductance regulator protein in milk, said method comprising:
providing a transgenic non-human female mammal containing within its genome a DNA construct comprising, as operably linked components, a DNA sequence encoding a cystic fibrosis transmembrane conductance regulator protein and a beta-casein promoter sequence, wherein, upon expression of said DNA sequence, said cystic fibrosis transmembrane conductance regulator protein inserts into an apical membrane of a mammary epithelial cell of the female mammal thereby producing said cystic fibrosis transmembrane conductance regulator protein in the milk of said female mammal.
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12. A DNA construct comprising:
- as operably linked components, a DNA sequence encoding a membrane protein and a mammary specific promoter sequence wherein, upon expression of the DNA sequence, the membrane protein inserts into an apical membrane of a mammary epithelial cell so that said membrane protein is secreted in a milk fat globule of a transgenic non-human female mammal.
- View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method of producing a membrane protein in milk, said method comprising:
- providing a transgenic non-human female mammal which contains within its genome a DNA construct comprising, as operably linked components, a DNA sequence encoding a membrane protein and a mammary gland specific promoter sequence, wherein, upon expression of the DNA sequence, said membrane protein inserts into an apical membrane of a mammary epithelial cell of said female mammal, thereby producing said membrane protein in the milk of said female mammal.
- View Dependent Claims (20, 21, 22)
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23. A method of producing a membrane protein in milk, said method comprising:
providing a transgenic non-human female mammal which contains within its genome a DNA construct comprising, as operably linked components, a DNA sequence encoding a membrane protein and a beta casein promoter sequence, wherein, upon expression of said DNA sequence, said membrane protein inserts into an apical membrane of a mammary epithelial cell of the female mammal, thereby producing said membrane protein in the milk of said female mammal.
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24. A milk fat globule membrane comprising a membrane protein wherein said membrane protein is other than a native membrane protein associated with a milk fat globule membrane and wherein said milk fat globule membrane is from a transgenic non-human female mammal.
Specification