Pichia secretory leader for protein expression
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United States of America Patent
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Aug 22, 2000
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Feb 24, 1998
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Sep 25, 1995
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Abstract
Polynucleotides, vectors, and host cells comprising a polynucleotide having a fragment of a leader sequence and a second nucleotide sequence that encodes a polypeptide heterologous to the leader sequence, wherein the leader sequence fragment is sufficient for secretion and comprises an amino acid sequence that comprises at least about 70% sequence identity to the leader sequence of Pichia acaciae killer toxin, wherein the heterologous polypeptide is not naturally contiguous to the leader sequence, and wherein upon expression of the polynucleotide molecule in a host cell suitable for expression thereof, the heterologous polypeptide is produced that is free of additional N-terminal amino acids.
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