Ref:
http://fr.wikipedia.org/wiki/Acides_amin%C3%A9s
Tableau présentant les 20 acides aminés

Propriétés chimiques
Propriétés de la chaîne latérale:
Abrev. |
Nom |
Type de chaine latérale |
Masse |
pI |
pK1(α-COOH) |
pK2(α-+NH3) |
pKr (R) |
Remarques |
A |
Ala |
Alanine |
hydrophobe |
89.09 |
6.11 |
2.35 |
9.87 |
|
|
C |
Cys |
Cystéine |
hydrophile |
121.16 |
5.05 |
1.92 |
10.70 |
8.37 |
Deux cistéines peuvent former un
pont disulfure, ce qui renforce la structure tertiaire de certaines
protéines, comme l'insuline
par exemple. |
D |
Asp |
Acide aspartique |
acide |
133.10 |
2.85 |
1.99 |
9.90 |
3.90 |
|
E |
Glu |
Acide glutamique |
acide |
147.13 |
3.15 |
2.10 |
9.47 |
4.07 |
|
F |
Phe |
Phénylalanine |
hydrophobe |
165.19 |
5.49 |
2.20 |
9.31 |
|
|
G |
Gly |
Glycine |
hydrophile |
75.07 |
6.06 |
2.35 |
9.78 |
|
|
H |
His |
Histidine |
base |
155.16 |
7.60 |
1.80 |
9.33 |
6.04 |
|
I |
Ile |
Isoleucine |
hydrophobe |
131.17 |
6.05 |
2.32 |
9.76 |
|
|
K |
Lys |
Lysine |
basique |
146.19 |
9.60 |
2.16 |
9.06 |
10.54 |
|
L |
Leu |
Leucine |
hydrophobe |
131.17 |
6.01 |
2.33 |
9.74 |
|
|
M |
Met |
Methionine |
hydrophobe |
149.21 |
5.74 |
2.13 |
9.28 |
|
C'est toujours le premier acide aminé d'une protéine. |
N |
Asn |
Asparagine |
hydrophile |
132.12 |
5.41 |
2.14 |
8.72 |
|
|
P |
Pro |
Proline |
hydrophobe |
115.13 |
6.30 |
1.95 |
10.64 |
|
|
Q |
Gln |
Glutamine |
hydrophile |
146.15 |
5.65 |
2.17 |
9.13 |
|
|
R |
Arg |
Arginine |
basique |
174.20 |
10.76 |
1.82 |
8.99 |
12.48 |
|
S |
Ser |
Serine |
hydrophile |
105.09 |
5.68 |
2.19 |
9.21 |
|
|
T |
Thr |
Threonine |
hydrophile |
119.12 |
5.60 |
2.09 |
9.10 |
|
|
V |
Val |
Valine |
hydrophobe |
117.15 |
6.00 |
2.39 |
9.74 |
|
|
W |
Trp |
Tryptophan |
hydrophobe |
204.23 |
5.89 |
2.46 |
9.41 |
|
|
Y |
Tyr |
Tyrosine |
hydrophile |
181.19 |
5.64 |
2.20 |
9.21 |
10.46 |
|
Acide
Aminé |
hydrophobe |
positif |
négatif |
polair |
chargé |
petit |
tout petit |
aromatique |
aliphatique |
Volume de van der Waals |
Ala |
X |
- |
- |
- |
- |
X |
X |
- |
- |
67 |
Cys |
X |
- |
- |
- |
- |
X |
- |
- |
- |
86 |
Asp |
- |
- |
X |
X |
X |
X |
- |
- |
- |
91 |
Glu |
- |
- |
X |
X |
X |
- |
- |
- |
- |
109 |
Phe |
X |
- |
- |
- |
- |
- |
- |
X |
- |
135 |
Gly |
X |
- |
- |
- |
- |
X |
X |
- |
- |
48 |
His |
X |
X |
- |
X |
X |
- |
- |
X |
- |
118 |
Lys |
X |
X |
- |
X |
X |
- |
- |
- |
- |
135 |
Ile |
X |
- |
- |
- |
- |
- |
- |
- |
X |
124 |
Leu |
X |
- |
- |
- |
- |
- |
- |
- |
X |
124 |
Met |
X |
- |
- |
- |
- |
- |
- |
- |
- |
124 |
Asn |
- |
- |
- |
X |
- |
X |
- |
- |
- |
96 |
Pro |
- |
- |
- |
- |
- |
X |
- |
- |
- |
90 |
Gln |
- |
- |
- |
X |
- |
- |
- |
- |
- |
114 |
Arg |
- |
X |
- |
X |
X |
- |
- |
- |
- |
148 |
Ser |
- |
- |
- |
X |
- |
X |
X |
- |
- |
73 |
Thr |
X |
- |
- |
X |
- |
X |
- |
- |
- |
93 |
Val |
X |
- |
- |
- |
- |
X |
- |
- |
X |
105 |
Trp |
X |
- |
- |
X |
- |
- |
- |
X |
- |
163 |
Tyr |
X |
- |
- |
X |
- |
- |
- |
X |
- |
141 |
Ref:
http://fr.wikipedia.org/wiki/Acides_amin%C3%A9s
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