Cysteine Description

Cysteine is an amino acid that contains sulphur. It is semi-essential, i.e., it can be synthesised in the animal physique through the transformation of methionine, addition amino acid that contains sulphur. This accommodation does not yet abide in infants, for whom cysteine is an capital amino acid and important for survival.

Cysteine is a basic of abounding proteins, decidedly of plants. It is present in decidedly top quantities in keratin, the structural protein begin for archetype in horn, hair and feathers. In corpuscle metabolism, cysteine charcoal in actinic antithesis with ist oxidised dipeptide cystine.