| abstract |
A mutant expander that is a variant of a model polypeptide with expandase activity by means of which threonine at amino acid position 89 in the model peptide has been replaced by lysine using lanumeration of the amino acid positions of the amino acid sequence of the expanded enzyme as represented in SEQ ID NO: 1, and whereby the model polypeptide with expadase activity has the amino acid sequence as depicted in SEQ ID NO: 1, or an amino acid sequence having at least 70% identity with SEQ ID NO : one. |