Die Seitenketten der 20 proteinogenen Aminosäuren CH2 CH2 CH2 H N C CH3 CH2 C NH Alanin (Ala, A) CH2 NH2 Arginin (Arg, R) H2N O Asparagin (Asn, N) Asparaginsäure (Asp, D) CH2 H2C CH2 CH2 CH2 C H2N O Glutamin (Gln, Q) COOH H Glutaminsäure (Glu, E) Glycin (Gly, G) H3C CH3 Leucin * (Leu, L) H3C C H CH2 CH3 NH Histidin (His, H) Isoleucin * (Ile, I) CH2 CH2 CH2 CH2 CH SH Cystein (Cys, C) N CH2 CH2 H2C COOH H2C NH2 Lysin * (Lys, K) H2C H2C S CH2 C H2 CH3 Methionin * (Met, M) Phenylalanin * (Phe, F) Prolin (Pro, P) CH2 CH2 HC OH CH NH H2C OH Serin (Ser, S) CH3 Threonin * (Thr, T) OH Tryptophan * (Try, W) Tyrosin (Tyr, Y) H3C CH3 Valin * (Val, V) (* für den Menschen essentielle Aminosäuren) Poolfach Chemie Zr, KS Rychenberg, FS’16