CPC C12N 9/80 (2013.01) [A61P 31/04 (2018.01)] | 14 Claims |
1. A nucleic acid encoding a polypeptide comprising the amino acid sequence of SEQ ID NO:1, wherein SEQ ID NO:1 is characterized by:
X5 may be any amino acid,
X13 may be any amino acid,
X72 may be L or S,
X98 may be any amino acid;
with the proviso that the polypeptide does neither comprise the sequence according to SEQ ID NO:2, nor the sequence according to SEQ ID NO:3, nor the sequence according to SEQ ID NO:4.
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