Anti-Cysteine antibody [3A4]

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Biological function summary

This amino acid functions beyond its role in protein structure by participating in enzymatic reactions and act as a precursor to the production of glutathione an important antioxidant that protects cells from oxidative stress. Cysteine can be found as a component of protein complexes involved in redox signaling. Through these complexes it supports cellular defense mechanisms and maintains a balance in the oxidative state of cells which is critical for proper cellular function.

Pathways

Cysteine's biological functions integrate into several essential pathways such as the methionine cycle and the glutathione synthesis pathway. Within the methionine cycle cysteine interacts with related proteins like homocysteine playing a role in methylation reactions critical for DNA and protein function. In the glutathione pathway cysteine directly contributes to the synthesis of glutathione interacting with enzymes like glutamate-cysteine ligase which enhances the cellular antioxidant capacity.