Amino Acids

Name	       Abbr.	      Linear structure formula
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Alanine	       ala a		      CH3-CH(NH2)-COOH

Arginine       arg r  HN=C(NH2)-NH-(CH2)3-CH(NH2)-COOH

Asparagine     asn n	       H2N-CO-CH2-CH(NH2)-COOH

Aspartic acid  asp d		 HOOC-CH2-CH(NH2)-COOH

Cysteine       cys c		   HS-CH2-CH(NH2)-COOH

Glutamine      gln q	    H2N-CO-(CH2)2-CH(NH2)-COOH

Glutamic acid  glu e	      HOOC-(CH2)2-CH(NH2)-COOH

Glycine	       gly g			  NH2-CH2-COOH

Histidine      his h	   NH-CH=N-CH=C-CH2-CH(NH2)-COOH
			   |__________|

Isoleucine     ile i	  CH3-CH2-CH(CH3)-CH(NH2)-COOH

Leucine	       leu l	    (CH3)2-CH-CH2-CH(NH2)-COOH

Lysine	       lys k	       H2N-(CH2)4-CH(NH2)-COOH

Methionine     met m	     CH3-S-(CH2)2-CH(NH2)-COOH

Phenylalanine  phe f		   Ph-CH2-CH(NH2)-COOH

Proline	       pro p		     NH-(CH2)3-CH-COOH
				     |_________|

Serine	       ser s		   HO-CH2-CH(NH2)-COOH

Threonine      thr t	       CH3-CH(OH)-CH(NH2)-COOH

Tryptophan     trp w	   Ph-NH-CH=C-CH2-CH(NH2)-COOH
			    |_______|

Tyrosine       tyr y	      HO-p-Ph-CH2-CH(NH2)-COOH

Valine	       val v	        (CH3)2-CH-CH(NH2)-COOH