What functional groups are found in proteins?

1 Answer
Aug 25, 2015

Answer:

The one functional group that is found in all proteins is the amide group or peptide bond.

Explanation:

Peptide bond
(from chemwiki.ucdavis.edu)

In addition, proteins may contain a wide range of functional groups in the sidechains of the amino acid residues:

  • alcoholic #"OH"# groups in serine and threonine
  • phenolic #"OH"# groups in tyrosine
  • #"SH"# groups in cysteine
  • #"COO"# groups in aspartic and glutamic acids
  • #"NH"_2# groups in lysine
  • #"CONH""2# groups in asparagine and glutamine

Amino Acids
(from amit1b.wordpress.com)