Provided herein are compositions and methods related to compositions comprising an Ig protease fusion protein. Also provided herein are compositions and methods for therapeutic treatment, such as of autoimmune diseases, allergies, or other immunological disorders, or in combination with the administration of another therapeutic, with such Ig protease fusion protein.

A cartilage extract with the effect of improving immune response, a preparation method therefor, and a use thereof. The cartilage extract uses animal cartilage as a raw material, and a cartilage extract containing an effective amount of undenatured type II collagen for improving immune response is obtained by adding sodium hyaluronate and lentinan at a mass ratio of 4:1 to 1:1, being capable of simultaneously preventing microbial spoilage of the cartilage extract and denaturation of the type II collagen during the storage period, and thereby improving the safety and storability of the product. The obtained cartilage extract has the advantages of high safety and effectiveness and has the effects of improving immune response, increasing the content of serum anti-inflammatory factors such as TGF-?, and reducing the content of inflammatory factors such as TNF-?, and can therefore be added to health food or functional food as a food raw material.

Provided in the present disclosure are a milk coagulant, a method for obtaining asclepain of Asclepias Linn. and cysteine protease B of Calotropis R. Br., as well as a method of producing cheese. The milk coagulant includes at least one of the asclepain of Asclepias Linn. and the cysteine protease B of Calotropis R. Br.

The present invention relates to the field of biochemistry, more particularly to proteomics, more particularly to protein sequencing, even more particularly to single molecule peptide sequencing. The invention discloses methods for single molecule protein sequencing and/or amino acid identification using cleavage inducing agents which are not specific for one particular amino acid, cleave polypeptides step by step from the N-terminus onwards and provide information on the identity of the cleaved amino acids based on the kinetics.

Reagents and methods for the digital analysis of proteins or peptides are provided. Specifically provided herein are proteins for identifying the N-terminal amino acid or N-terminal phosphorylated amino acid of a polypeptide. Also, an enzyme for use in the cleavage step of the Edman degradation reaction and a method for using this enzyme are described.

The invention relates to new Streptococcal proteases designated IgdE which display IgG degrading cysteine protease activity. The invention further relates to in vitro methods of cleaving IgG using the described Streptococcal proteases, using the methods to generate Fc and Fab fragments, and using the methods to detect IgG.

The present invention relates to a method for producing a meat analogue product which comprises texturizing a non-animal protein and adding a thermostable endopeptidase before or during the texturization process.

Embodiments provided herein, provide for polypeptides and molecules comprising a polypeptide having protease activity and a variant Fc molecule, pharmaceutical compositions comprising the same, and methods that can be used to treat disorders, such as IgG mediated disorders.

Disclosed herein are methods and compounds for profiling a lysine reactive protein. Also described herein are methods, compounds, and compositions for identifying a small molecule fragment ligand that interacts with a reactive lysine residue.

Disclosed herein are methods for harvesting a recombinant protein comprising an asparaginyl endopeptidase (AEP) cleavage site, as well as methods for inhibiting cleavage of a recombinant protein comprising an AEP cleavage site, during a biomanufacturing process.