Abstract:
The present invention generally relates to the field of fermentation technology and microorganisms useful for such fermentations. The invention also relates to materials including nucleic acids and proteins useful for altering fermentation characteristics of microorganisms, and to microorganisms comprising such nucleic acids and/or proteins.
Abstract:
The present invention is directed to an industrial fermentation process for cultivating a Bacillus cell in a chemically defined fermentation medium and a method for producing a protein of interest comprising the steps of providing a chemically defined fermentation medium, inoculating the fermentation medium with a Bacillus cell comprising a gene encoding a protein of interest, cultivating the Bacillus cell in the fermentation medium under conditions conductive for the growth of the Bacillus cell and the expression of the protein of interest, wherein the cultivation of the Bacillus cell comprises the addition of one or more feed solutions comprising one or more chemically defined carbon sources and one or more trace element ions to the fermentation medium.
Abstract:
The present invention is directed to a producing a DNA methyltransferase in a recombinant host cell, wherein the DNA methyltransferase methylates DNA resulting in a DNA containing 5-methylcytosine within the recognition sequence GCNGC and wherein the DNA methyltransferase comprises less than (35) amino acid residues between amino acid residue (72) and amino acid residue (106) according to the numbering of SEQ ID NO: 33. Furthermore, the present invention is directed to the use of such DNA methyltransferase for the production of bacterial transformants comprising the steps of (a) introducing into a first bacterial host cell a polynucleotide comprising a polynucleotide sequence encoding the DNA methyltransferase to produce a methylated DNA and (b) transferring the methylated DNA from the first bacterial host cell into a second bacterial host cell, wherein the second bacterial host cell comprises a restriction endonuclease able to degrade the DNA but unable to degrade the methylated DNA.
Abstract:
A process for production of a protein of interest in a microbial host organism comprising the steps of:a) constructing a vector comprising a gene for the protein of interest and a functional frr gene and no antibiotic resistance gene,b) transforming a host organism having an inactivated chromosomal frr gene with the vector obtained in a),c) culturing the transformed host organism obtained in b) under conditions allowing the expression of the gene of interest in the host organism andd) isolating the protein of interest.
Abstract:
The present invention relates to novel adsorbents applicable a process for the separation or purification of antibodies, antibody fragments or engineered variants thereof, which comprise anthraquinone dye ligands; corresponding purification processes; and corresponding analytical or preparative separation kits.
Abstract:
The present invention relates to a Bacillus licheniformis host cell for production of biological compounds with increased purity. Specifically, the invention relates to a Bacillus licheniformis host with one or more genetic modifications selected from a) a genetic modification causing compared to an unmodified control cell an increased expression of at least one of the genes selected from the group consisting of degQ, degll, degS, degR, and phrG, b) a genetic modification causing compared to an unmodified control cell an increased autophosphorylation activity of the DegS protein, and c) a genetic modification causing compared to an unmodified control cell a reduced phosphatase activity of the DegS protein. The present invention further relates to a method for production of at least one compound of interest with increased purity based on cultivating the bacterial host cell of the present invention.
Abstract:
The present invention relates to a Bacillus host cell for increased production of biological compounds. Specifically, the invention relates to a Bacillus host with genetic modifications that lead to decreased production of components of biofilm and increased levels of phosphorylated De-gll. Said Bacillus host comprises at least one gene expression cassette with a polynucleotide encoding at least one polypeptide of interest, operably linked to a promoter for the production of compounds. The present invention further relates to a method for increased production of at least one polypeptide of interest based on cultivating the bacterial host cell of the present invention.
Abstract:
The present invention relates to a Bacillus host cell for increased production of biological compounds. Specifically, the invention relates to a Bacillus host with genetic modifications in the remA and/or remB gene. The present invention further relates to a method for increased production of at least one polypeptide of interest based on cultivating the bacterial host cell of the present invention.
Abstract:
The present invention is directed to a nucleic acid construct comprising a polynucleotide operably linked to one or more control sequence that directs the expression of the polynucleotide in a host cell, wherein at least one control sequence comprises a promoter sequence of an operon comprising a secA gene or a functional fragment or functional variant thereof and wherein said promoter sequence is heterologous to the polynucleotide. In a further embodiment, the invention is directed to an expression vector and a host cell comprising the nucleic acid construct comprising the promoter sequence described herein and a method of expressing a polynucleotide in a host cell.
Abstract:
The present invention is directed to a producing a DNA methyltransferase in a recombinant host cell, wherein the DNA methyltransferase methylates DNA resulting in a DNA containing 5-methylcytosine within the recognition sequence GCNGC and wherein the DNA methyltransferase comprises less than (35) amino acid residues between amino acid residue (72) and amino acid residue (106) according to the numbering of SEQ ID NO: 33. Furthermore, the present invention is directed to the use of such DNA methyltransferase for the production of bacterial transformants comprising the steps of (a) introducing into a first bacterial host cell a polynucleotide comprising a polynucleotide sequence encoding the DNA methyltransferase to produce a methylated DNA and (b) transferring the methylated DNA from the first bacterial host cell into a second bacterial host cell, wherein the second bacterial host cell comprises a restriction endonuclease able to degrade the DNA but unable to degrade the methylated DNA.