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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