SURFACTANT-TOLERANT CELLULASE AND METHOD OF CONVERTING THE SAME

• Main Authors: YANAI, KOJI, TSUYUKI, YUMIKO, WATANABE, MANABU
• Format: Patent
• Language: English; French; German
• Published: 31.08.2011
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

A method for suppressing a reduction in an endoglucanase activity in the presence of a surfactant, characterized by modifying a protein having the endoglucanase activity in which the N-terminus is an amino acid other than pyroglutamic acid, to a protein having the N-terminus of pyroglutamic acid, is disclosed. Further, a modified protein having an endoglucanase activity wherein the N-terminal amino acid is converted into pyroglutamic acid by an amino acid modification, a polynucleotide encoding the protein, an expression vector comprising the polynucleotide, a host cell transformed with the expression vector, and a process for producing the protein by cultivating the host cell, are disclosed.