Abstract: A recombinant flavocytochrome b2 (FCb2), comprising a mature FCb2 peptide sequence of a native FCb2, or a functionally active variant of said mature FCb2 peptide sequence, wherein the N-terminus of said mature FCb2 peptide sequence consists of a truncated signal peptide sequence replacing the native signal peptide sequence, and wherein said truncated signal peptide sequence is of the following structure from N- to C-terminus: i. a methionine; ii. optionally a tag sequence; iii. an amino acid sequence of a length of 0-9 amino acids of the native signal peptide sequence, corresponding to the amino acid sequence up to 9 amino acids directly upstream of the I/L/V-x-N/A/L motif of the native signal peptide sequence of FCb2; and iv. the I/L/V-x-N/A/L motif, which can be of number 0, 1, or can be partially truncated, wherein if the number is 0 or the I/L/V-x-N/A/L is partially truncated, the length of the amino acid sequence of iii.
Type:
Application
Filed:
June 9, 2022
Publication date:
August 1, 2024
Applicant:
DirectSens GmbH
Inventors:
Peter HERZOG, Beate STEINER, Alfons FELICE, Christopher SCHULZ
Abstract: The present invention relates to a modified cellobiose dehydrogenase (CDH) or its functional flavodehydrogenase domain having glucose oxidation activity and a reduced maltose oxidation activity as compared to the unmodified CDH or its functional flavodehydrogenase domain, nucleic acids encoding said enzyme or domain, electrodes with said enzyme or domain and methods of producing and using the same.
Type:
Grant
Filed:
March 6, 2013
Date of Patent:
January 22, 2019
Assignee:
DIRECTSENS GMBH
Inventors:
Roland Ludwig, Christoph Sygmund, Wolfgang Harreither, Roman Kittl, Alfons Felice
Abstract: The present invention relates to cellobiose dehydrogenases (CDH) having glucose oxidation activity at a pH of 7.4 or above, modifications to modify the pH dependency of the enzymes activity, uses for these CDHs, in particular electrode sensors and electrochemical cells.
Type:
Grant
Filed:
May 12, 2017
Date of Patent:
January 23, 2018
Assignee:
DIRECTSENS GMBH
Inventors:
Roland Ludwig, Dietmar Haltrich, Wolfgang Harreither, Lo Gorton
Abstract: The present invention relates to cellobiose dehydrogenases (CDH) having glucose oxidation activity at a pH of 7.4 or above, modifications to modify the pH dependency of the enzymes activity, uses for these CDHs, in particular electrode sensors and electrochemical cells.
Type:
Application
Filed:
May 12, 2017
Publication date:
August 31, 2017
Applicant:
DIRECTSENS GMBH
Inventors:
Roland LUDWIG, Dietmar HALTRICH, Wolfgang HARREITHER, Lo GORTON
Abstract: The present invention relates to cellobiose dehydrogenases (CDH) having glucose oxidation activity at a pH of 7.4 or above, modifications to modify the pH dependency of the enzymes activity, uses for these CDHs, in particular electrode sensors and electrochemical cells.
Type:
Grant
Filed:
June 4, 2015
Date of Patent:
May 30, 2017
Assignee:
DIRECTSENS GMBH
Inventors:
Roland Ludwig, Dietmar Haltrich, Wolfgang Harreither, Lo Gorton
Abstract: The present invention relates to cellobiose dehydrogenases (CDH) having glucose oxidation activity at a pH of 7.4 or above, modifications to modify the pH dependency of the enzymes activity, uses for these CDHs, in particular electrode sensors and electrochemical cells.
Type:
Grant
Filed:
February 26, 2010
Date of Patent:
June 9, 2015
Assignee:
DIRECTSENS GMBH
Inventors:
Roland Ludwig, Dietmar Haltrich, Wolfgang Harreither, Lo Gorton