C07K2319/036

Methods for the expression of peptides and proteins

The present invention lies in the field of molecular biology, recombinant peptide and protein expression and relates to methods comprising nucleic acid sequences comprising allocrites of T1SSs or fragments thereof for the efficient production of recombinant Pe OIs and Pr OI. The allocrites or fragments thereof improve the expression of PeOI and Pr OI as IB and function as IB-tags.

SIGNAL PEPTIDES FOR INCREASED PROTEIN SECRETION

The present invention relates to a nucleic acid molecule encoding a fusion protein comprising a secretion signal comprising (i) a signal peptide sequence originating from a KRE1 protein or a signal peptide sequence originating from a SWP1 protein; and optionally (ii) an ?-mating factor (MF?) pro-sequence, and a protein of interest. The present invention further relates to a secretion signal as defined herein, an expression cassette comprising said nucleic acid molecule as well as recombinant eukaryotic host cells comprising said nucleic acid molecule or expression cassette. Further encompassed is a method of manufacturing a protein of interest in a eukaryotic host cell and a method of increasing the secretion of a protein of interest from a eukaryotic host cell. Further provided is the use of the secretion signal for increasing the secretion of a recombinant protein of interest from a eukaryotic host cell and the use of the recombinant host cell for manufacturing a recombinant protein of interest.

PSMA-specific binding proteins

The present invention relates to a prostate-specific membrane antigen (PSMA)-specific binding protein, wherein the PSMA-specific binding protein is a lipocalin 2 (Lcn2)-derived binding protein and binds to PSMA with a K.sub.D of 10 nM or lower. The present invention also relates to a nucleic acid molecule encoding the PSMA-specific binding protein of the invention, a vector comprising said nucleic acid molecule of the invention and a host cell transformed with the vector. Furthermore, the invention relates to a method of producing the PSMA-specific binding protein of the invention, the method comprising culturing the host cell of the invention under suitable conditions and isolating the PSMA-specific binding protein produced. The present invention further relates to a protein conjugate comprising the PSMA-specific binding protein of the invention, or the PSMA-specific binding protein produced by the method of the invention. In addition, the present invention relates to a pharmaceutical or diagnostic composition; to the PSMA-specific binding protein of the invention, the nucleic acid molecule of the invention, the vector of the invention, the host cell of the invention or the PSMA-specific binding protein produced by the method of the invention, for use in therapy and/or diagnosis, and in particular for use in the therapy and/or diagnosis of tumors, Crohn's disease and/or neurological diseases.

PROCESS FOR PREPARATION OF SECRETORY IgA AND SECRETORY IgM
20190256577 · 2019-08-22 ·

A process for synthesizing and separating secretory IgA from a mixture of IgA monmer and IgA dimer is provided. The process includes covalently binding affinity tagged or epitope tagged recombinant secretory component to the IgA dimer in the mixture and binding the affinity tagged or an epitope tagged secretory IgA to immobilized moieties on the solid phase support resin to which the affinity tag or epitope tag binds and then eluting the affinity tagged or an epitope tagged secretory IgA with release buffer. A process for synthesizing and separating secretory IgM from a mixture of IgM and other plasma proteins is also provided. The process includes covalently binding affinity tagged or an epitope tagged recombinant secretory component to the IgM in the mixture and binding the affinity tagged or an epitope tagged secretory IgM to immobilized moieties on the solid phase support resin and then eluting the peptide tagged secretory IgM with a release buffer.

Process for preparation of secretory IgA and secretory IgM
10385117 · 2019-08-20 ·

A process for synthesizing and separating secretory IgA from a mixture of IgA monomer and IgA dimer is provided. The process includes covalently binding affinity tagged or epitope tagged recombinant secretory component to the IgA dimer in the mixture and binding the affinity tagged or an epitope tagged secretory IgA to immobilized moieties on the solid phase support resin to which the affinity tag or epitope tag binds and then eluting the affinity tagged or an epitope tagged secretory IgA with release buffer. A process for synthesizing and separating secretory IgM from a mixture of IgM and other plasma proteins is also provided. The process includes covalently binding affinity tagged or an epitope tagged recombinant secretory component to the IgM in the mixture and binding the affinity tagged or an epitope tagged secretory IgM to immobilized moieties on the solid phase support resin and then eluting the peptide tagged secretory IgM with a release buffer.

ENGINEERED BACTERIA SECRETING THERAPEUTIC PROTEINS AND METHODS OF USE THEREOF
20240165168 · 2024-05-23 ·

Engineered bacteria that secrete therapeutic polypeptides, pharmaceutical compositions comprising the bacteria, methods for producing recombinant polypeptides, and methods for using the bacteria for diagnostic and therapeutic purposes are provided.

Pharmaceutical Combinations for Treating Cancer

The present invention relates to a pharmaceutical combination comprising a recombinant Gram-negative bacterial strain and an immune checkpoint modulator (ICM) and their use in a method for the prevention, delay of progression or treatment of cancer in a subject.

METHODS AND AGENTS FOR MODULATING ADOPTIVE IMMUNOTHERAPY

This disclosure relates to methods and agents for modulating adoptive immunotherapy to enable bioengineered immune cells to utilize xenobiotic fuel, e.g., in a low glucose environment. The immune cells may be used, e.g., for treatment of a tumor or cancer, such as part of a therapeutic treatment of cancer or for treatment of a bacterial, fungal, or viral infection, alone or in combination with a low glucose (e.g., ketogenic) diet. They may also be used to treat a tumor, a cancer, an infection, an autoimmune disease, or an inflammatory or neuroinflammatory disease or condition in a patient on a low glucose diet. The immune cells may be used in combination with a scaffold or platform or with a microparticle or nanoparticle for localization of treatment or xenobiotic nutrients or for controlled release, as well as for other therapeutic uses.

RECOMBINANT NEL-LIKE (MELL) PROTEIN PRODUCTION
20190248851 · 2019-08-15 ·

The present invention provides a method and system for producing a NELL protein. The method and system comprise a CELL encoding a NELL protein or peptide and a non-insect secretory signal peptide.

Genomic integration of DNA fragments in fungal host cells
20190225988 · 2019-07-25 · ·

The instant invention relates to methods for the in vivo assembly and integration of a polynucleotide of interest at a specific chromosomal target site in a fungal host cell, said method comprising transforming the host cell with: iv. at least one polynucleotide fragment comprising an upstream flanking region and a 5 part of the polynucleotide of interest in that order; v. at least one polynucleotide fragment comprising a 3 part of the polynucleotide of interest and a downstream flanking region in that order; and, optionally vi. one or more additional polynucleotide fragments each comprising a 5 part and a 3 part of the polynucleotide of interest; wherein the 5 part and 3 part of each polynucleotide fragment overlap with that or those of another fragment with at least 20 bp, whereby the fragments cover the entire polynucleotide of interest, and wherein the flanking regions are of sufficient size and homology to effectuate homologous recombination with the specific target site for chromosomal integration.