203Nanosensor Laboratory
acid lysine has a positively charged amino group in its side chain
located at the epsilon-carbon and hence called the epsilon-amino
group) of lysine (α-amino acid well known for its antiviral properties,
present in protein and essential in the diet of vertebrates, with the
chemical formula HO
2
CCH(NH
2
)(CH
2
)
4
NH
2
) and arginine (1 of the
20 amino acids that serve as the building blocks in protein, benets
hard training athletes; not essential to the diet, but can be made by the
body from other substances); the alpha carboxyl group of the chain
end and the beta and gamma carboxyl groups of aspartic (amino
acid present in many proteins, important in animal metabolism and
acting as a neurotransmitter) and glutamic ...