SEARCH Articles Figures Tables A polymerization A-linked Acidity nature Amino acid natural Amino acid naturally occurring Amino acids chains Amino natural Chain link Chains of proteins L amino acids L chains L protein L,-a-Amino L-a-amino acids Link protein Linking amino acids Natural Occurence Naturally-occurring Polymeric Proteins Polymeric amino acids Polymerization amino acid Polymerization of protein Protein chain Protein linked Protein occurring Proteins naturally occurring Proteins polymerization