PMID: 8943856Dec 1, 1996Paper

The cDNA and derived amino acid sequence of porcine factor VIII.

Blood
J F HealeyP Lollar

Abstract

The cDNA corresponding to 137 bp of the 5' untranslated region, the signal peptide, and the A1, A3, C1, and C2 domains of porcine factor VIII (fVIII) have been cloned and sequenced. Along with previously determined sequences of the porcine fVIII B domain and the A2 domain, this completes the sequence determination of the cDNA corresponding to the translated protein. Alignments of the derived amino acid sequence of porcine fVIII with human and murine fVIII indicate that the A1, A2, A3, C1, and C2 domains are more conserved than the B domains or the proteolytic cleavage peptides corresponding to residues 337-372 and 1649-1689. The knowledge of the porcine fVIII cDNA may be useful to understand functional and immunological differences between human and porcine fVIII and may lead to improved fVIII replacement products for hemophilia. A patients through the development of recombinant porcine fVIII or hybrid human/porcine fVIII derivatives.

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