The document lists 20 amino acids and provides their chemical structures and names. It shows the amino and carboxyl groups of each amino acid and the variable R group that differs between each one. Some amino acids such as alanine, arginine, asparagine, aspartate, cysteine, glutamate, glutamine, and glycine are listed multiple times with their structures and names.

1. AMINO Ala Arg Asn
ACIDS Glu Gln Gly
Leu Lys Met
Ser Thr Trp
O O O
Asn
Asp
Arg
Cys
Ala
H2N CH C OH H2N CH C OH H2N CH C OH
CH3 CH2 CH2
Alanina (2)
CH2 C O
CH2 NH2
NH
C NH
NH2
Arginina (14)
O O O
Glu
Gln
Gly
His
Ile
H2N CH C OH H2N CH C OH H2N CH C OH
CH2 CH2 H
CH2 CH2 Glicina (1)
C O C O
OH NH2
Ácido glutámico (12)

2. O O O
Met
Leu
Lys
Phe
Pro
H2N CH C OH H2N CH C OH H2N CH C OH
CH2 CH2 CH2
CH CH3 CH2 CH2
CH3 CH2 S
Leucina (8)
CH2 CH3
Metionina (10)
NH2
Lisina (13)
O O O
Thr
Tyr
Trp
Val
Ser
H2N CH C OH H2N CH C OH H2N CH C OH
CH2 CH OH CH2
OH CH3
Serina (3) Treonina (6)
HN
Triptofano (17)

3. AMINO Asp Cys
ACIDS His Ile
Phe Pro
Tyr Val
O O
Asn
Asp
Cys
Arg
Ala
H2N CH C OH H2N CH C OH
CH2 CH2
C O SH
OH Cisteína (4)
Ácido aspártico (11)
O O
Glu
Gln
Gly
His
Ile
H2N CH C OH H2N CH C OH
CH2 CH CH3
CH2
N
CH3
NH Isoleucina (9)
Histidina (18)
O O
Met
Leu
Lys
Phe
Pro
H2N CH C OH C OH
CH2
HN
Prolina (19)
Fenilalamina (15)

4. O O
Thr
Trp
Tyr
Val
Ser
H2N CH C OH H2N CH C OH
CH2 CH CH3
CH3
Valina (7)
OH
Tirosina (16)
O O
H2N CH C OH H
CH2 COOH
N
S
H
S Hidroxiprolina (20)
CH3
Cistina (5)

5. O O
Thr
Trp
Tyr
Val
Ser
H2N CH C OH H2N CH C OH
CH2 CH CH3
CH3
Valina (7)
OH
Tirosina (16)
O O
H2N CH C OH H
CH2 COOH
N
S
H
S Hidroxiprolina (20)
CH3
Cistina (5)

6. O O
Thr
Trp
Tyr
Val
Ser
H2N CH C OH H2N CH C OH
CH2 CH CH3
CH3
Valina (7)
OH
Tirosina (16)
O O
H2N CH C OH H
CH2 COOH
N
S
H
S Hidroxiprolina (20)
CH3
Cistina (5)

7. O O
Thr
Trp
Tyr
Val
Ser
H2N CH C OH H2N CH C OH
CH2 CH CH3
CH3
Valina (7)
OH
Tirosina (16)
O O
H2N CH C OH H
CH2 COOH
N
S
H
S Hidroxiprolina (20)
CH3
Cistina (5)