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Polypeptide
专利权人:
DuPont Nutrition Biosciences ApS
发明人:
DERKX, Patrick Maria Franciscus,HEMMINGSEN, Anja Kellet-Smith,MEJLDAL, Rie,SØRENSEN, Bo Spange,KRAGH, Karsten Matthias
申请号:
ES07789503
公开号:
ES2644745T3
申请日:
2007.06.19
申请国别(地区):
ES
年份:
2017
代理人:
摘要:
We describe a PS4 variant polypeptide derivable from a parent polypeptide having non-maltogenic exoamylase activity, in which the PS4 variant polypeptide comprises an amino acid substitution at position 307 to lysine (K) or arginine (R), with reference to the position numbering of a Pseudomonas saccharophilia exoamylase sequence shown as SEQ ID NO: 1. Preferably, the PS4 variant polypeptide further comprises an amino acid substitution at position 70, preferably G70D. The amino acid at positions 272 and 303 of the sequence of the are preferably histidine (H) and glycine (G).
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