Catalysis of the movement of phospholipids from one membrane face to the other ('flippase' activity), driven by the hydrolysis of ATP.

Catalysis of the reaction: S-adenosyl-L-homocysteine + H2O = adenosine + L-homocysteine.

Catalysis of the reaction: S-adenosyl-L-methionine = (5-deoxy-5-adenosyl)(3-aminopropyl) methylsulfonium salt + CO2.

Catalysis of the reaction: ATP = 3',5'-cyclic AMP + diphosphate.

Catalysis of the reaction: ATP + AMP = ADP + ADP.

Interacting selectively with eukaryotic initiation factor 4E, a polypeptide factor involved in the initiation of ribosome-mediated translation.

The breakdown into simpler components of glycogen, a polydisperse, highly branched glucan composed of chains of D-glucose residues.

Catalysis of the reaction: N6-(1,2-dicarboxyethyl)AMP = fumarate + AMP.

Specialized membrane domains composed mainly of cholesterol and sphingolipids, and are relatively poor in polyunsaturated lipids such as glycerophospholipids. The formation of these membrane domains is promoted by the presence of cholesterol in the lipid bilayer: the rigid hexagonal rings of cholesterol can pack tightly against the saturated hydrocarbon chains of some membrane lipids, allowing these lipids to assemble into cohesive units floating in the mass of loosely packed polyunsaturated plasma membrane components.

The formation from simpler components of any of a group of naturally occurring, biologically active amines, such as norepinephrine, histamine, and serotonin, many of which act as neurotransmitters.

Stops, prevents or reduces the activity of metalloendopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide linkages in oligopeptides or polypeptides and contain a chelated metal ion at their active sites which is essential to their catalytic activity.

Catalysis of the reaction: GTP + IMP + L-aspartate = GDP + phosphate + N6-(1,2-dicarboxyethyl)-AMP.

The breakdown into simpler components of biogenic amines, any of a group of naturally occurring, biologically active amines, such as norepinephrine, histamine, and serotonin, many of which act as neurotransmitters.