Chiron Corporation

Novo Nordisk A/s

Other

Barbara S Chapman

Rae Lyn Burke

Mirella Ezban Rasmussen

Jan Moller Mikkelson

Dino Dina

Steven Rosenberg

Paul A Luciw

Nancy L Haigwood

Richard M Thayer

Recombinant protein complexes having human Factor VIII:C activity are expressed in a eukaryotic host cell by transforming the host cell with first and second expression cassettes encoding a first polypeptide substantially homologous to human Factor VIII:C A domain and a second polypeptide substantially homologous to human Factor VIII:C C domain, respectively. In the present invention, the first polypeptide may be extended having at its C-terminal a human Factor VIII:C B domain N-terminal peptide, a polypeptide spacer of 3-40 amino acids, and a human Factor VIII:C B domain C-terminal peptide. Expression of the second polypeptide is improved by employing an &agr;,-antitrypsin signal sequence.

Protein complexes having factor VIII:C activity and production thereof

Recombinant protein complexes having human Factor VIII:C activity are expressed in a eukaryotic host cell by transforming the host cell with first and second expression cassettes encoding a first polypeptide substantially homologous to human Factor VIII:C A domain and a second polypeptide substantially homologous to human Factor VIII:C C domain, respectively. In the present invention, the first polypeptide may be extended having at its C-terminal a human Factor VIII:C B domain N-terminal peptide, a polypeptide spacer of 3-40 amino acids, and a human Factor VIII:C B domain C-terminal peptide. Expression of the second polypeptide is improved by employing an .alpha..sub.1 -antitrypsin signal sequence.

Protein complexes having Factor VIII:C activity and production thereof

Polynucleotide sequences are provided for the diagnosis of the presence of retroviral infection in a human host associated with lymphadenopathy syndrome and/or acquired immune deficiency syndrome, for expression of polypeptides and use of the polypeptides to prepare antibodies, where both the polypeptides and antibodies may be employed as diagnostic reagents or in therapy, e.g., vaccines and passive immunization. The sequences provide detection of the viral infectious agents associated with the indicated syndromes and can be used for expression of antigenic polypeptides.

Vector for expression of a polypeptide in a mammalian cell

DNA constructs encoding human Factor VIII:C protein are disclosed. In particular, the DNA construct contains a nucleotide sequence that encodes a first polypeptide homologous to the A domain of human Factor VIII:C linked to a second polypeptide homologous to the C domain of human Factor VIII:C by a polypeptide spacer that comprises a peptide homologous to a human Ig heavy chain hinge region. Recombinant methods for producing human Factor VIII:C protein are also disclosed.

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Berkeley, CA, United States of America

Barbara S Chapman