Elementary plant Biochemistry and Biotechnology (2+1)

c) Amino acids with polar, uncharged R groups

• This group of amino acids includes serine, threonine, cysteine, methionine, asparagine and glutamine.The hydroxyl group of serine and threonine, the sulphur atom of cysteine and methionine and the amide group of asparagine and glutamine, contribute to the polarity.The R groups of these amino acids are more hydrophilic than the non-polar amino acids