摘要:
The invention relates to the use of co-expression of an antimicrobial agent and an enzyme, with a view to improving yield and/or overall production economy. Examples of antimicrobial agents are antimicrobial peptides such as lactoferricins and antimicrobial enzymes such as lysozyme and glucose oxidase, and examples of enzymes are endoglucanase, xylanase, phytase, protease, galactanase, mannanase, dextranase, alpha-galactosidase, pectate lyase, alpha-amylase and glucoamylase. A fusion product comprising the antimicrobial agent and the enzyme and a cleavable linker is novel, and can be used in animal feed and animal feed additives. The invention also describes the use of a protection domain wherein at least 50% of the amino acid residues comprised in the peptide protection domain are D (Asp) and/or E (Glu). The protection or quenching domain serves to temporarily and reversibly inactivate the antimicrobial peptide during the expression.
摘要:
The present invention relates to novel JP170 like subtilases from wild-type bacteria, hybrids thereof and to methods of construction and production of these proteases. Further, the present invention relates to use of the claimed subtilases in detergents, such as a laundry or an automatic dishwashing detergent.
摘要:
The present invention relates to a method of identifying control sequences responding to an-timicrobial peptides (AMPs), to host cells expressing an AMP and comprising a control se-quence of the invention operable linked to a reporter, and to a method of screening for novel AMPs or AMP-variants having improved antimicrobial activity. Particularly the present inven-tion relates to DNA control sequences, wherein the transcriptional profiles of said control se-quences are regulated by the presence of an antimicrobial polypeptide expressed inside the host cell.
摘要:
A method of screening a protease gene library for a gene encoding a protease of interest, the method comprising the steps of introducing a first gene of the protease gene library and a second gene encoding a protease inhibitor into a host cell; cultivating the host cell, wherein the cell expresses the first and the second genes to produce a complex of a protease and the inhibitor; dissociating the inhibitor from the complex; and selecting the protease of interest and isolating the encoding gene.
摘要:
The present invention relates to a method of producing a natively non-secreted polypeptide without a secretion signal in a Bacillus host cell and recovering the polypeptide without performing a lysis step as well as to a Bacillus host cell cell comprising one or more exogenous or heterologous polynucleotides encoding a natively non-secreted polypeptide with no secretion signal.
摘要:
The present invention provides a method for producing a protein complex comprising the steps of constructing a fusion polynucleotide sequence in frame, the sequence comprising a first gene encoding a protease, and a second gene encoding a protease inhibitor; introducing the sequence into a host cell; cultivating the host cell, wherein the cell expresses the sequence and produces a non-covalently linked complex of the protease and the inhibitor; and recovering the complex.
摘要:
The present invention relates to novel JP170 like subtilases from wild-type bacteria, hybrids thereof and to methods of construction and production of these proteases. Further, the present invention relates to use of the claimed subtilases in detergents, such as a laundry or an automatic dishwashing detergent.