Classifying the 20 Amino Acids

ALANINE

• ALA

• A

• NON POLAR

• NON ESSENTIAL

• -CH3 METHYL

SERINE

• SER

• S

• POLAR

• HYDROXYL CONTAINING

  • NON ESSENTIAL

    • HYDROXYMETHYL

CYSTEINE

• CYS

• C

• CH2SH - THIOL

• POLAR

• SULFUR CONTAINING

  • CH2SH THIOL

  • NON ESSENTIAL

ASPARTIC ACID

• ASP

• D

• ACIDIC

  • NON ESSENTIAL

TRYPTOPHAN

• TRP

• W

• AROMATIC

• NON POLAR

• ESSENTIAL

  • -CH2 IODOLE RING

GLUTAMIC ACID

• GLU

• E

• ACIDIC

• NON ESSENTIAL

• CH2CH2COOH CARBOXYL GROUP

PHENYLALANINE

• PHE

• F

• AROMATIC

• NON-POLAR

• ESSENTIAL

  • CH2 BENZENE RING

TYROSINE

• TYR

• Y

• AROMATIC

• NON-POLAR

  • NON ESSENTIAL

ASPARAGINE

• ASN

• N

• AMIDIC

• POLAR

  • NON ESSENTIAL

METHIONINE

• MET

• M

• SULFUR

• NON-POLAR

• NON ESSENTIAL

GLYCINE

• GLY

• G

• NON POLAR

  • NON ESSENTIAL

LYSINE

• LYS

• K

• BASIC

  • ESSENTIAL

ARGININE

• ARG

• R

• BASIC

  • RELATIVELY ESSENTIAL

VALINE

• VAL

• V

• NON POLAR

  • ESSENTIAL

ISOLEUCINE

• ILE

• I

• NON-POLAR

  • ESSENTIAL

LEUCINE

• LEU

• L

• NON POLAR

  • ESSENTIAL

PROLINE

• PRO

• P

• IMINO

• NON-ESSENTIAL

  • NON-POLAR

GLUTAMINE

• GLN

• Q

• POLAR

• AMIDIC

• NON-ESSENTIAL

THREONINE

• THR

• T

• POLAR

• AMIDIC

  • ESSENTIAL

HISTIDINE

• HIS

• H

• BASIC

• ESSENTIAL