Cysteine metabolism refers to the biological pathways that consume or create cysteine. The pathways of different amino acids and other metabolites interweave and overlap to creating complex systems.
Human cysteine metabolism
In human cysteine metabolism, L-cysteine is consumed in several ways as shown below. L-cysteine is also consumed in methionine and glutathione metabolism as well as pantothenate/Coenzyme A biosynthesis.
|cysteine dioxygenase||→||3-sulfino-L-alanine (or cysteine sulfinic acid)|