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20 Cards in this Set

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2-H's around central carbon

Glycine (Gly, G)

Nonpolar Side Chain
No chiral center

Methyl R-Group

Alanine (Ala, A)

Non Polar Side Chain

Isopropyl R-Group

Valine (Val, V)

Nonpolar Side Chain

2-methylpropane R-Group


Leucine (Leu, L)

Nonpolar Side Chain

Additional Chiral Center on R-Group

Isoleucine (Ile, I)

Nonpolar Side Chain

contains thioether

Methionine (Met, M)


Nonpolar Side Chain

5-membered aliphatic ring structure

Proline (Pro, P)



Nonpolar Side Chain

toluene R-Group

Phenylalanine(Phe, F)



Nonpolar aromatic Side Chain

Only double ring R-group

Tryptophan (Trp, W)

Nonpolar aromatic Side Chain

Smallest hydroxyl containing R-Group

Serine (Ser, S)

Uncharged polar Side Chain

Additional Chiral Center on hydroxyl containing R-Group

Threonine (Thr, T)



Uncharged polar Side Chain

R-Group contains 1-carbon Amide

Asparagine (Asn, N)



Uncharged polar Side Chain

R-Group contains 2-carbon Amide

Glutamine (Gln, Q)



Uncharged polar Side Chain

Phenol containing R-Group

Tyrosine (Tyr, Y)



Uncharged polar Side Chain

Smallest Thiol containing R-Group

Cysteine (Cys, C)



Uncharged polar Side Chain

4-carbon containing Side Chain

Lysine (Lys, K)

Charged polar Side Chain

Longest Side chain

Arginine (Arg, R)

Charged Polar Side Chain

Only Side chain with 5-membered ring

Histidine (His, H)



Charged Polar Side Chain

one of two carboxyl containing R-Groups

Aspartate [Aspartic acid] (Asp, D)



Charged Polar Side Chain

Largest carboxyl containing R-group

Glutamate [Glutamic acid] (Glu, E)



Charged Polar Side Chain