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氨基酸屬性與結構
氨基酸(Amino acids)是含有一個堿性氨基、一個酸性羧基和一個側鏈基團R的有機化合物。一個氨基酸的主要組成(chéng)元素是碳(C)、氫(H)、氧(O)、氮(N)。R基團代表20種(zhǒng)不同的側鏈,它可以是簡單的一個氫原子(H)或是一個複雜的碳鏈功能(néng)團。側鏈基因R的物理和化學(xué)屬性決定了每一個氨基酸甚至整個蛋白質的獨一特性和功能(néng)。
氨基酸屬性與結構圖表
使用此免費的在線蛋白/多肽分析工具,您可以分析氨基酸序列屬性、預測蛋白的二級結構、預測抗原肽的免疫原性、分析氨基酸序列的疏水性、以及更多其他信息...
名稱 縮寫 |
分子量 |
pI |
CAS登記号 |
結構 / 分子式 |
3D 結構圖/DIV> |
Alanine |
89.09 |
6 |
56-41-7 |
|
|
Ala A |
Arginine |
174.2 |
11.15 |
74-79-3 |
HN=C(NH2)-NH-(CH2)3-CH(NH2)-COOH | |
|
Arg R |
Asparagine |
132.12 |
5.41 |
5794-13-8 |
|
|
Asn N |
Aspartic acid |
133.1 |
2.77 |
56-84-8 |
|
|
Asp D |
Cysteine |
121.15 |
5.02 |
52-90-4 |
|
|
Cys C |
Glutamine |
146.15 |
5.65 |
56-85-9 |
H2N-CO-(CH2)2-CH(NH2)-COOH | |
|
Gln Q |
Glutamic acid |
147.13 |
3.22 |
56-86-0 |
|
|
Glu E |
Glycine |
75.07 |
5.97 |
56-40-6 |
|
|
Gly G |
Histidine
|
155.16 |
7.47 |
71-00-1 |
N=C-NH-C=C-CH2-CH(NH2)-COOH |
|
|
His H |
|
Isoleucine |
131.17 |
5.94 |
73-32-5 |
CH3-CH2-CH(CH3)-CH(NH2)-COOH | |
|
Ile I |
Leucine |
131.17 |
5.98 |
61-90-5 |
(CH3)2-CH-CH2-CH(NH2)-COOH | |
|
Leu L |
Lysine |
146.19 |
9.59 |
39665-12-8 |
|
|
Lys K |
Methionine |
149.21 |
5.74 |
63-68-3 |
CH3-S-(CH2)2-CH(NH2)-COOH | |
|
Met M |
Phenylalanine |
165.19 |
5.48 |
63-91-2 |
|
|
Phe F |
Proline
|
115.13 |
6.3 |
147-85-3 |
NH-(CH2)3-CH-COOH |
|
|
Pro P |
|
Serine |
105.09 |
5.68 |
56-45-1 |
|
|
Ser S |
Threonine |
119.12 |
5.64 |
72-19-5 |
|
|
Thr T |
Tryptophan
|
204.23 |
5.89 |
73-22-3 |
Ph-NH-CH-C-CH2-CH(NH2)-COOH |
|
|_______| |
Trp W |
|
Tyrosine |
181.19 |
5.66 |
60-18-4 |
|
|
Tyr Y |
Valine |
117.15 |
5.96 |
72-18-4 |
|
|
Val V |
|
澤泩源® 密碼子使用表 |
氨基酸屬性
氨基酸 |
Code |
親水性 |
電荷 |
pKa, NH2 |
pKa, COOH |
pK(R) |
溶解性 |
Arginine |
R |
hydrophilic |
+ |
9.09 |
2.18 |
13.2 |
71.8 |
Asparagine |
N |
hydrophilic |
N |
8.8 |
2.02 |
|
2.4 |
Aspartate |
D |
hydrophilic |
- |
9.6 |
1.88 |
3.65 |
0.42 |
Glutamate |
E |
hydrophilic |
- |
9.67 |
2.19 |
4.25 |
0.72 |
Glutamine |
Q |
hydrophilic |
N |
9.13 |
2.17 |
|
2.6 |
Lysine |
K |
hydrophilic |
+ |
10.28 |
8.9 |
2.2 |
|
Serine |
S |
hydrophilic |
N |
9.15 |
2.21 |
|
36.2 |
Threonine |
T |
hydrophilic |
N |
9.12 |
2.15 |
|
freely |
Cysteine |
C |
moderate |
N |
10.78 |
1.71 |
8.33 |
freely |
Histidine> |
H |
moderate |
+ |
8.97 |
1.78 |
6 |
4.19 |
Methionine |
M |
moderate |
N |
9.21 |
2.28 |
|
5.14 |
Alanine |
A |
hydrophobic |
N |
9.87 |
2.35 |
|
15.8 |
Valine |
V |
hydrophobic |
N |
9.72 |
2.29 |
|
5.6 |
Glycine |
G |
hydrophobic |
N |
9.6 |
2.34 |
|
22.5 |
Isoleucine |
I |
hydrophobic |
N |
9.76 |
2.32 |
|
3.36 |
Leucine |
L |
hydrophobic |
N |
9.6 |
2.36 |
|
2.37 |
Phenylalanine |
F |
hydrophobic |
N |
9.24 |
2.58 |
|
2.7 |
Proline |
P |
hydrophobic |
N |
10.6 |
1.99 |
|
1.54 |
Tryptophan |
W |
hydrophobic |
N |
9.39 |
2.38 |
|
1.06 |
Tyrosine |
Y |
hydrophobic |
N |
9.11 |
2.2 |
10.1 |
0.038 |
|
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