Amino Acids and Their Properties

Below you will find the name of common amino acids, their three-letter code, their one letter code, side chain class, side chain polarity, and side chain charge at biological pH

Alanine

Ala

A

Aliphatic

Nonpolar

Neutral

 

Arginine

Arg

R

Basic

Basic polar

Positive

 

Asparagine

Asn

N

Amide

Polar

Neutral

 

Aspartic Acid

Asp

D

Acid

Acidic Polar

Negative

 

Cystine

Cys

C

Sulfur containing

Nonpolar

Neutral

 

Glutamic Acid

Glu

E

Acid

Acidic Polar

Negative

 

Glutamine

Gln

Q

Amide

Polar

Neutral

 

Glycine

Gly

G

Aliphatic

Nonpolar

Neutral

 

Histidine

His

H

Basic Aromatic

Basic Polar

10% positive and 90% neutral

 

Isoleucine

Ile

I

Aliphatic

Nonpolar

Neutral

 

Leucine

Leu

L

Aliphatic

Nonpolar

Neutral

 

Lysine

Lys

K

Basic

Basic Polar

Positive

 

Methionine

Met

M

Sulfur Containing

Nonpolar Neutral

 

Phenylalanine

Phe

F

Aromatic

Nonpolar

Neutral

 

Proline

Pro

P

Cyclic

Nonpolar

Neutral

 

Serine

Ser

S

Hydroxyl-containing

Polar

Neutral

 

Threonine

Thr

T

Hydroxyl-containing

Polar

Neutral

 

Tryptophan

Trp

W

Aromatic

Nonpolar

Neutral

 

Tyrosine

Tyr

Y

Aromatic

Polar

Neutral

 

Valine

Val

V

Aliphatic

Nonpolar

Neutral

 

Source: https://en.wikipedia.org/wiki/Amino_acid