Catalysis of the endohydrolysis of beta-1,4-linkages in the backbone of lambda-carrageenan, resulting in the tetrasaccharide alpha-D-Galp2,6S2-(1->3)-beta-D-Galp2S-(1->4)-alpha-D-Galp2,6S2-(1->3)-D-Galp2S.

Catalysis of the cleavage of the N-glycosidic bond between the 5'-pyrimidine residue in cyclobutadipyrimidine (in DNA) and the corresponding deoxy-D-ribose residue.

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

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

Any process that modulates the frequency, rate, or extent of leukocyte degranulation.

The regulated exocytosis of secretory granules containing preformed mediators such as major basic protein, eosinophil peroxidase, and eosinophil cationic protein by an eosinophil.

Catalysis of the reaction: D-dopachrome + H(+) = 5,6-dihydroxyindole + CO(2).

Catalysis of the reaction: 3-phosphonopyruvate + 2 H(+) = CO(2) + phosphonoacetaldehyde.

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

Any process that activates or increases the frequency, rate, or extent of mast cell activation as part of an immune response.

Catalysis of the reaction: L-2,4-diaminobutyrate + H(+) = 1,3-diaminopropane + CO(2).

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

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

Any process that stops, prevents, or reduces the frequency, rate, or extent of mast cell activation as part of an immune response.

Catalysis of the reaction: 3-dehydro-L-gulonate 6-phosphate + H(+) = L-xylulose 5-phosphate + CO(2).

The volume enclosed by the membranes of an acidocalcisome.

Any process that modulates the frequency, rate, or extent of mast cell activation as part of an immune response.