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PH20 polypeptide variants, formulations and uses thereof

  • US 9,447,401 B2
  • Filed: 12/28/2012
  • Issued: 09/20/2016
  • Est. Priority Date: 12/30/2011
  • Status: Active Grant
First Claim
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1. A modified PH20 polypeptide that exhibits increased stability in the presence of a phenolic preservative, comprising an amino acid replacement in an unmodified PH20 polypeptide, wherein:

  • the amino acid replacement confers the increased stability;

    the amino acid replacement is replacement with proline at a position corresponding to position 204 in a PH20 polypeptide with reference to amino acid residue positions set forth in SEQ ID NO;

    3;

    corresponding amino acid positions are identified by alignment of the modified PH20 polypeptide with the polypeptide whose sequence is set forth in SEQ ID NO;

    3;

    the modified PH20 polypeptide has at least 85% sequence identity to the sequence of amino acids set forth in SEQ ID NO;

    3 or 7; and

    stability is increased compared to the unmodified polypeptide without the amino acid replacement, wherein stability is measured by resistance to denaturation in the presence of a phenolic preservative.

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