S-Aminoethyl-l-cysteine, also known as thialysine, is a toxic analog of the amino acid lysine in which the second carbon of the amino acid's R-group (side chain) has been replaced with a sulfur atom.

Strictly speaking, L-thialysine is actually considered an S-(2-aminoethyl) analogue of L-cysteine. This compound is known to have cytotoxic affects as it inhibits protein synthesis and lysine 2,3-aminomutase.


References

External links

  • H-Cys(aminoethyl)-OH·HCl at ChemImpex
  • Thialysine at US Biological



Cysteine is the only amino acid that has an L stereochemistry but an R

LCystine escientificsolutions

Cysteine Lcysteine, Cys, C Proteinogenic Amino Acid Molecule

L cystin Fotos und Bildmaterial in hoher Auflösung Alamy

Cysteine, Lcysteine. Roteinogenic Amino Acid Molecule. Structural