CPC C07K 14/005 (2013.01) [C12N 7/00 (2013.01); C12N 2760/20222 (2013.01); C12N 2760/20232 (2013.01); C12N 2760/20245 (2013.01); C12N 2760/20262 (2013.01)] | 30 Claims |
1. A polypeptide comprising an amino acid sequence at least 95% identical to the amino acid sequence set forth in SEQ ID NO: 1, wherein the polypeptide comprises an alanine or glutamine substitution at position 47 and an alanine or glutamine substitution at position 354.
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