Amino Acids Classification Table. Classification of Amino Acids. Approach attempts to use physicochemical properties of amino acids.
Peptide 50 amino acids protein 50 amino acids RCO2H HNH2- Amino Acid R sidechain R1 H3NCO2 R2 H3NCO2 - H2O H3N H N O CO2 R 2 C-terminus N-terminus Peptide or protein polypeptide N H O R3 H N O R2 N O R1 N H O O7 R6 N O 5 R4 308 271. In addition sulfur S is present in the side chains of cysteine and methionine and selenium Se in the less common amino acid. Essential amino acids must be acquired through diet.
Non essential amino acids.
Five of the amino acids in Table 10-1 are termed dis-pensable as they can be synthesized in the body from either other amino TABLE 10-1Indispensable Dispensable and Conditionally Indispensable Amino Acids in. A branched-chain amino acid. Dispensable amino acids into two classes. Common food sources for these amino acids include eggs soy protein and whitefish.
