Dairy Chemistry And Biochemistry

MILK PROTEINS 237

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Appendices

Appendix 4A Structures of amino acids found in proteins

Glycine Alanine Valine Leucine Isoleucine

7H3

CH2 y2

y2 I

s I

CH2 COOH

I I

I

SH

OH I y3 I

CH2 I

I

H

H-C-OH

I

H I

HpN-C-COOH H2N-C-COOH H2N-C-COOH H2N-C-COOH H2N-C-COOH
H I H I H
Serine Threonine Cysteine Methionine Aspartic acid
y2

y2 I

'72 y2

C=NH

NH

I

NH2

I

CH2

I

CH2

I

I

CH2

I

CHI

I

I

FooH

CH2

I

CH2 I

I

H2N-C-COOH H2N-C-COOH HaN-C-COOH

H H H

Asparagine Glutamine Glutamic acid Lysine Arginine