The regulated exocytosis of secretory granules containing preformed mediators such as proteases, lipases, and inflammatory mediators by a neutrophil.

Catalysis of the reaction: [(2->1)-beta-D-fructosyl](n) = [(2->1)-beta-D-fructosyl](n-1) + alpha-D-fructofuranose-beta-D-fructofuranose 1,2':1,2'-dianhydride. This reaction is the production of alpha-D-fructofuranose beta-D-fructofuranose 1,2':2,1'-dianhydride (DFA I) by successively eliminating the diminishing (2->1)-beta-D-fructan (inulin) chain from the terminal D-fructosyl-D-fructosyl disaccharide.

Any process that activates or increases the frequency, rate or extent of eosinophil degranulation.

Any process that activates or increases the frequency, rate or extent of eosinophil activation.

Any process that stops, prevents, or reduces the rate of eosinophil degranulation.

Any process that stops, prevents or reduces the frequency, rate or extent of eosinophil activation.

Catalysis of the reaction: dermatan sulfate = n 4-deoxy-beta-D-gluc-4-enuronosyl-(1,3)-N-acetyl-D-galactosamine 4-sulfate. This reaction is the eliminative cleavage of dermatan sulfate containing 1,4-beta-D-hexosaminyl and 1,3-beta-D-glucurosonyl or 1,3-alpha-L-iduronosyl linkages to disaccharides containing 4-deoxy-beta-D-gluc-4-enuronosyl groups to yield a 4,5-unsaturated dermatan-sulfate disaccharide (DeltaUA-GalNAC-4S). Chondroitin sulfate B is also known as dermatan sulfate.

The deamination of the N-terminal valine residue of a protein to form isobutyrate.

The oxidative deamination of the alpha carbon of an encoded N-terminal amino acid, to form pyruvic acid retaining an amide bond between its 1-carboxyl group and the adjacent residue. The pyruvate 2-oxo group may become an enzyme active site, or it may be reduced to an alcohol.

The condensation of pyruvate through the 2-oxo group with the N-terminal valine of proteins to form the derivative N-pyruvic acid 2-iminyl-L-valine.

The modification of peptidyl-valine.

The oxidative deamination of N-terminal peptidyl-cysteine, or peptidyl-serine, to form pyruvic acid with an amide bond between its 1-carboxyl group and the N-terminal residue.

The condensation of pyruvate through the 2-oxo group with the N-terminal cysteine of proteins to form the derivative N-pyruvic acid 2-iminyl-L-cysteine.

The acetylation of peptidyl-lysine.