The chemical reactions involving nicotinamide, pyridine-3-carboxamide, the amide of nicotinic acid. It is a member of the B complex of vitamins and occurs widely in living organisms.

Catalysis of the reaction: glycoprotein phosphatidylinositol + H2O = phosphatidate + glycoprotein inositol.

Enables the directed movement of water (H2O) into, out of, within or between cells.

Catalysis of the reaction: 2-lysophosphatidylcholine + H2O = glycerophosphocholine + a carboxylate.

Catalysis of the reaction: phosphatidylcholine + H2O = 1-acylglycerophosphocholine + a carboxylate.

Enables the directed movement of copper (Cu) ions into, out of, within or between cells.

The formation from simpler components of glutathione, the tripeptide glutamylcysteinylglycine, which acts as a coenzyme for some enzymes and as an antioxidant in the protection of sulfhydryl groups in enzymes and other proteins.

Degradation of the mRNA transcript body that occurs when the ends are not protected by the 5'-cap or the 3'-poly(A) tail.

phospholipase C, acting on phosphatidylcholine

Catalysis of the reaction: a phosphatidylcholine + H2O = 1,2-diacylglycerol + choline phosphate.

mRNA catabolism, endonucleolytic cleavage-dependent decay

A minor mRNA degradation pathway that begins with an endonucleolytic cleavage to generate unprotected ends.

The formation from simpler components of ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.

Catalysis of the reaction: N-acetyl-D-glucosamine 1-phosphate = N-acetyl-D-glucosamine 6-phosphate.

integral to membrane of membrane fraction

Integral to that fraction of cells, prepared by disruptive biochemical methods, that includes the plasma and other membranes; require detergents, such as Triton X-100, to be released from membranes.

Catalysis of the reaction: source of phosphate + oxaloacetate = phosphoenolpyruvate + CO2.

Catalysis of the reaction: GTP + oxaloacetate = GDP + phosphoenolpyruvate + CO2.

Catalysis of the reaction: alpha-D-glucose 1-phosphate = alpha-D-glucose 6-phosphate.