GENETICS Terms Amino Acid Cysteine

 

- Info:

- Cysteine chemical formula is C3H7NO2S.

- Cysteine is non-essential amino acid which means that humans can synthesise it.

- Cysteine 'R' group is -CH2SH, a methyl group with a thiol group (-SH) attached - yellow and white.

- Cysteine found in beta-keratin, the main protein in nails, skin and hair.

Cysteine is important in collagen production and assists in skin elasticity and texture.

Cysteine is useful to detoxify the body from harmful toxins and help protect the brain and liver from damage from alcohol, drugs etc.

Cysteine may help in strengthening the protective lining of the stomach as well as intestines, which may help prevent

damage caused by aspirin and similar drugs.

- Cysteine interactive 3D model can be found at http://www.biotopics.co.uk/JmolApplet/cysjdisplayhalos.html.

- Cysteine 3D model was taken from http://commons.wikimedia.org/wiki/File:L-cysteine-3D-balls.png.