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Alanine
-CH3
Ala, A
NonPolar
Hydrophobic
Side Chains: Single methyl gruop
Arginine
HN=C(NH2)-NH-(CH2)3-
Arg, R
Polar; Basic (Postively Charged)
Essential AA
Asparagine
H2N-CO-CH2-
Asn, N
Polar; Uncharged
Hydrophilic
Aspartic
Acid
HOOC-CH2-
Asp, D
Polar; Acitic (negatively charged)
Cysteine
HS-CH2-
Cys, C
Polar; Uncharged
Nucleophilic
Glutamic
Acid
HOOC-(CH2)2-
Glu, E
Polar; Acitic (negatively charged)
Glutamine
H2N-CO-(CH2)2-
Gln, Q
Polar; Uncharged
Hydrophilic
Glycine 
H-
Gly, G
Polar; Uncharged
Histidine
His, H
Polar; Uncharged
Essential AA (Juveniles)

OR Polar; Basic (Postively Charged)
Isoleucine
CH3-CH2-CH(CH3)-
Ile, I
NonPolar
Highly Hydrophobic
Essential AA
Leucine
(CH3)2-CH-CH2-
Leu, L
NonPolar
Highly Hydrophobic
Essential AA
Most prevalent
SC: Branched hydrocarbon
Lysine
H2N-(CH2)4-
Lys, K
Polar; Basic (Postively Charged)
Essential AA
Methionine
CH3-S-(CH2)2-
Met, M
NonPolar
Nucleophilic SideChain
Highly Hydrophobic
Essential AA
Phenylalanine
Phenyl-CH2-
Phe, F
NonPolar
Essential AA
Aromatic SideChaind
Highly Hydrophobic
Proline
Pro, P
NonPolar
Movement restrictions so limits chain flexibility.
Serine
HO-CH2-
Ser, S
Polar; Uncharged
Hydrophilic
Threonine
CH3-CH(OH)-
Thr, T
Polar; Uncharged
Essential AA
Hydrophilic
Tryptophan
Trp, W
NonPolar
Aromatic SideGroup
Essential AA
Least Prevalent AA
Tyrosine
Try, Y
Polar; Uncharged
Hydrophilic
Valine
CH3-CH(CH2)-
Val, V
NonPolar
Highly Hydrophobic Side chain
Essential AA
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