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pkr Tyrosine

10.07

pkr Cysteine

8.18

pkr Lysine

10.53

pkr Histidine

6.00

pkr Arginine

12.48

pkr Aspartate (aspartic acid)

3.65

pkr Glutamate (glutamic acid)

4.25

1 letter for Glycine

G

3 letter for Glycine

Gly

1 letter for Alanine

A

3 letter for Alanine

Ala

1 letter for Proline

P

3 letter for Proline

Pro

1 letter for Valine

V

3 letter for Valine

Val

1 letter for Leucine

L

3 letter for Leucine

Leu

1 letter for Isoleucine

I

3 letter for Isoleucine

Ile

1 letter for Methionine

M

3 letter for Methionine

Met

1 letter for Phenylalanine

F

3 letter for Phenylalanine

Phe

1 letter for Tyrosine

Y

3 letter for Tyrosine

Tyr

1 letter for Tryptophan

W

3 letter for Tryptophan

Trp

1 letter for Serine

S

3 letter for Serine

Ser

1 letter for Threonine

T

3 letter for Threonine

Thr

1 letter for Cysteine

C

3 letter for Cysteine

Cys

1 letter for Asparagine

N

3 letter for Asparagine

Asn

1 letter for Glutamine

Q

3 letter for Glutamine

Gln

1 letter for Lysine

K

3 letter for Lysine

Lys

1 letter for Histidine

H

3 letter for Histidine

His

1 letter for Arginine

Arg

3 letter for Arginine

R

1 letter for Aspartate

D

3 letter for Aspartate

Asp

1 letter for Glutamate

E

3 letter for Glutamate

Glu

Glycine

+H3N--CH2--COO-

Alanine

+H3N--CH(COO-)--CH3

Proline

5-member ring {-CH(COO-)--CH2--CH2--CH2--NH2+-)

Valine

+H3N--CH(COO-)--CH(CH3)--CH3

Leucine

CH2-CH-(CH3)2 (v shape)

Isoleucine

CH(CH3)-CH2-CH3 (t-shape)

Methionine

+H3N--CH(COO-)--CH2--CH2--S--CH3

Nonpolar alaphatic R groups

G, A, P, V, L, I, M

Phenylalanine

+H3N--CH(COO-)--CH2--{BENZYL RING}

Tyrosine

+H3N--CH(COO-)--CH2--{BENZYL RING}--OH

Tryptophan

+H3N--CH(COO-)--CH2--{penta (NH) ring}{benzyl ring}

Aromatic R groups

F, Y, W

Serine

+H3N--CH(COO-)--CH2--OH

Threonine

+H3N--CH(COO-)--CH(CH3)--OH

Cysteine

+H3N--CH(COO-)--CH2--SH

Asparagine

+H3N--CH(COO-)--CH2--C(NH2)=O

Glutamine

+H3N--CH(COO-)--CH2--CH2--C(NH2)=O

Polar, uncharged R groups

S, T, C, N, Q

Lysine

+H3N--CH(COO-)--CH2--CH2--CH2--CH2--NH3+

Histidine

+H3N--CH(COO-)--CH2--{penta (NH) ring}

Arginine

+H3N--CH(COO-)--CH2--CH2--CH2--NH--C(NH2+)--NH2+

Positively charged R groups

K, H, R

Aspartate

+H3N--CH(COO-)--CH2--C(O-)--O-

Glutamate

CH2 -- CH2 -- COO-

Negatively Charged R Groups

D, E

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