Amino Acids
Amino acids are the basic building blocks of protein. There are 20 kinds of amino acids for protein. 9 of them are essential while 11 of them are non essential.





Biology
----------------
Name

  1.Alanine
  2.Arginine
  3.Asparagine
  4.Aspartic acid
  5.Cysteine
  6.Glutamic acid
  7.Glutamine
  8.Glycine
  9.Histidine
10.Isoleucine
11.Leucine
12.Lysine
13.Methionine
14.Phenylalanine
15.Proline
16.Serine
17.Threonine
18.Tryptophan
19.Tyrosine
20.Valine
Scientific Information:

Proteins are composed of amino acids, which are composed of carbon, hydrogen, oxygen, and nitrogen atoms. Certain amino acids also have sulfur and phosphorous atoms, and or also other trace of iron and copper. Small basic proteins from amino acids can be called peptides.
Molecular Formula

C
3H7NO2
C
6H14N4O2
C
4H8N2O3
C
4H7NO4
C
3H7NO2S
C
5H9NO4
C
5H10N2O3
C
2H5NO2
C
6H9N3O2
C
6H13NO2
C
6H13NO2
C
6H14N2O2
C5H11NO2S
C
9H11NO2
C
5H9NO2
C
3H7NO3
C
4H9NO3
C
11H12N2O2
C
9H11NO3
C
5H11NO2
Molecular Weight

89.09
174.2
132.12
133.1
121.16
147.13
146.15
75.01
155.16
131.17
131.17
146.19
149.21
165.19
115.13
105.09
119.12
204.23
181.19
117.15
Importance

Nonessential
Nonessential
Nonessential
Nonessential
Essential
Nonessential
Nonessential
Nonessential
Nonessential
Essential
Essential
Essential
Nonessential
Essential
Nonessential
Nonessential
Essential
Essential
Essential
Essential
Other amino acids

Azaserine
Carnosine
Citrulline
Creatine
Dopamine
Glycocyamine
Histamine
Homocysteine
Homocystine
Levodopa
Sarcosine
Molecular Formula

C
5H7N3O4
C
9H14N4O3
C
6H13N3O3
C
4H9N3O2
C
8H11NO2
C
3H7N3O2
C
5H9N3
C
4H9NO2S
C
8H16N2O4S2
C
9H11NO4
C
3H7NO2
Molecular Weight

173.13
226.24
175.19
131.13
153.18
117.11
111.15
135.19
268.36
197.19
89.09
Melting Point (Celsius)

297
244
235
270
240
160
185
290
287
284
293
224
281
283
221
228
256
289
343
315
Melting Point (Celsius)

150
260
222
303

282
83
232
264
277
212