Sulphur is the element most likely responsible for methionine unique properties.
METHIONINE:
- Methionine is one of the essential amino acids in nature. Methionine is also a sulfur containing amino acid alongside cysteine.
- Generally, amino acids are structurally made up of an amino group (-NH2), a carboxyl group (-COO) and a R side chain. The R side chain differentiates each amino acid as no two amino acids possess the same side chain.
- The side chain of methionine contains sulphur, which accounts for its unique properties as an amino acid.
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