Amino Acids MCAT

• The three-letter code for Alanine is Ala
• The one-letter code for Alanine is A
• Alanine is an Aliphatic amino acid with a metabolic connection
• Aromatic amino acids have side chains that contain benzene rings.
• The three-letter code for Glycine is Gly
• The one-letter code for Glycine is G
• Glycine is considered achiral because it has a H as a R-group.
• The one-letter code for Valine is V
• The three-letter code for Valine is Val
• CH3 is a methyl group.
• This is the Structure for Glycine

  
• Glycine is an aliphatic amino acid, nonpolar, hydrophobic
• This is the structure for Alanine

  
• This is the structure for Valine

  
• Isoleucine and Leucine are constitutional isomers.
• The one-letter code of leucine is L
• The three-letter code for Leucine is Leu
• Leucine has an isobutyl group
• This is the structure for Leucine

  
• The one-letter code for isoleucine is I
• The three-letter code for isoleucine is Ile.
• Isoleucine has 2 chiral carbons
• Isoleucine is aliphatic, nonpolar, and hydrophobic.
• This is the structure for Isoleucine

  
• -CH2CH3 is a ethyl group.
• The one-letter code for methionine is M
• The three-letter code for methionine is Met
• Methionine is aliphatic, nonpolar and hydrophobic
• Methionine has S in the R-group
• ROR is an ether group
• This is the structure for methionine

  
• Methionine is used as a start codon when translating mRNA into a polypeptide
• The one-letter code for phenylalanine is F
• The three-letter code for Phenylalanine is Phe
• This is the structure for Phenylalanine

  
• Phenylalanine is aromatic, nonpolar and hydrophobic
• Phenylalanine has a benzene ring attached to "alanine" (CH3).
• The one-letter code for tryptophan is W
• The three-letter code for tryptophan is Trp
• This is the structure for Tryptophan