Pharmacognosy - medicinal plants (herbs)
Pharmacognosy - medicinal plants (herbs)

The amino acids in proteins:

With a few exceptions, proteins are formed from the following amino acids:

Aliphatic (neutral)

Glycine

 Symbol: Gly or G

 

 Chemical Name:

 Aminoacetic acid

 

 


Glycine structure

Alanine

  Symbol: Ala or A

 

  Chemical Name:

  2-Aminopropanoic acid

 

 

 

 

Alanine structure

Serine

  Symbol: Ser or S 

 

  Chemical Name:

  2-Amino-3-hydroxypropanoic acid

 

 

 

          Serine structure

Threonine

  Symbol: Thr or T 

 

  Chemical Name:

  2-Amino-3-hydroxybutanoic acid

 

 

 

        Threonine structure

Valine

  Symbol: Val or V 

 

  Chemical Name:

   2-amino-3-methylbutanoic acid

 

 

 

       Valine structure

Leucine

        Symbol: Leu or L 

 

        Chemical Name:

        2-Amino-4-methylpentanoic acid

 

 

 

 

 

       Leucine structure

Isoleucine

   Symbol: Ile or I

 

   Chemical Name:

   2-Amino-3-methylpentanoic acid

 

 

 

       Isoleucine structure

 


Thioaliphatic (neutral)

Cysteine

        Symbol: CyCH

 

        Chemical Name:

         2-Amino-3-sulfhydrylpropanoic acid

 

 

 


       Cysteine structure

Cystine

    Symbol: CyS-SCy

 

    Chemical Name:

    L-3,3'-Dithiobis(2-aminopropionic acid)

   

 

 

 

 

 

 

 

 

       Cystine structure

Methionine

     Symbol: Met or M

 

     Chemical Name:

      2-amino-4-(methylthio)butanoic acid

 

 

 

 

 

          Methionine structure

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