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
metabolism as well as pantothenate
L-cysteine is the product of several processes as well. In addition to the reactions below, L-cysteine is also a product of glycine, serine, and threonine metabolism.