Any process that activates or increases the rate of chemical reactions involving a substance.

Any process that modulates the frequency, rate, or extent of the breakdown of substances into simpler components.

Any process that stops, prevents or reduces the rate of the breakdown of substances into simpler components.

The process by which a SUMO protein (small ubiquitin-related modifier) is conjugated to a target protein via an isopeptide bond between the carboxyl terminus of SUMO with an epsilon-amino group of a lysine residue of the target protein.

The chemical reactions involving of any of a diverse group of vitamins that are soluble in organic solvents and relatively insoluble in water.

Any process that activates or increases the rate of the breakdown of substances into simpler components.

The process by which a SUMO protein (small ubiquitin-related modifier) is cleaved from its target protein.

The chemical reactions involving any of the vitamin A compounds, retinol, retinal (retinaldehyde) and retinoic acid, all of which are derivatives of beta-carotene.

The side of the plasma membrane that is opposite to the side that faces the cytoplasm.

The formation from simpler components of molybdopterin cofactor (Moco), essential for the catalytic activity of some enzymes, e.g. sulfite oxidase, xanthine dehydrogenase, and aldehyde oxidase.

The side of the plasma membrane that faces the cytoplasm.

The chemical reactions involving any member of a large group of derivatives or analogs of porphyrin. Porphyrins consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group.

Catalysis of the reaction: a phosphatidylcholine + H2O = choline + a phosphatidate.

The formation from simpler components of any member of a large group of derivatives or analogs of porphyrin. Porphyrin consists of a ring of four pyrrole nuclei linked each to the next at their alpha positions through a methine group.

Catalysis of the reaction: ATP + (R)-5-phosphomevalonate = ADP + (R)-5-diphosphomevalonate.