STRUCTURES OF AMINO ACIDS -CH,CH,CH NH, H-C—CH, ALANInE ARGININE ASPARAGINE ASPARTIC ACID H-C—CH,-SH -CH,CH, H-C-CH,CH H-C-H H3 CYSTEINE GLUTAMIC ACID GLUTAMINE GLYCINE (cys) (glu) (gIN) (gly) H-C-C-CH CH3 H-C-CH2-C--CH3 H-C-CH CH CH2CH2-NH3 NH3 CH3 LYSINE HISTIDINE ISOLEUCINE LEUCINE (his) CH,CH H3 H-C-CH H-C-CH,-OH METHIONINE (met PHENYLALANINE SERINE (phe PROLINE (ser) H-C-CH, -CH -C-CH H→ H3 THREONINE TRYPTOPHAN/ VALINE (thr) (trp TYROSINE (val)9 ALANINE (ala) ARGININE (arg) ASPARAGINE (asN) C C O O H NH3 CH3 - + C C O O H NH3 C H CH3 CH3 - + C C O O H NH3 CH2CH2CH2 N H C NH2 NH2 - + + C C O O H NH3 CH2 C O NH2 - + C C O O H NH3 CH2 C O O - + - ASPARTIC ACID (asp) C C O O H NH3 CH2 SH - + CYSTEINE (cys) C C O O H NH3 CH2CH2 O O C - + - C C O O H NH3 CH2CH2 O C NH2 - + C C O O H NH3 H - + C C O O H NH3 CH2 C N C N H H H H - + + C C O O H NH3 C H CH3 CH2CH3 - + C C O O H NH3 CH2 C H CH3 CH3 - + C C O O H NH3 CH2CH2CH2CH2 NH3 + - + C C O O H NH3 CH2CH2 S CH3 - + C C O O H NH3 CH2 H H H H H - + C N CH2 CH2 CH2 H H H - C O O + C C O O H NH3 CH2 OH - + C C O O H NH3 C H OH CH3 - + C C O O H NH3 CH2 - + C C O O H NH3 CH2 OH H H H H - + GLUTAMIC ACID (glu) GLUTAMINE (glN) GLYCINE (gly) HISTIDINE (his) ISOLEUCINE (ile) LEUCINE (leu) LYSINE (lys) METHIONINE (met) PHENYLALANINE (phe) PROLINE (pro) SERINE (ser) THREONINE (thr) TRYPTOPHAN (trp) TYROSINE (tyr) VALINE (val) STRUCTURES OF AMINO ACIDS C N H H H H H H