Page 169 - The Manga Guide to Biochemistry

Proteins are formed by Hey, I remember
connecting together many those! They look
relatively small molecules like beads strung

called amino acids. together.

Amino Protein
acids Fold

connect Up

Amino One amino acid has Amino acids are
Acid two arms connected like this.

Amino This is called a
acid peptide bond. (For

more details, see
page 158.)

Right! Amino Glycine Alanine Valine Leucine ...only 20 types of
acids are amino acids have
Isoleucine Methionine Proline Phenylalanine
the building been determined to
blocks of Tryptophan Serine Threonine Asparagine be used in proteins.

proteins. T"hbeeesaaedrsal"rieferrt.ohme

Many types Glutamine Tyrosine Cysteine Lysine
of amino

acids exist
in the real
world, but...

Arginine Histidine Aspartic acid Glutamic acid

And this is the

basic structure
of amino acids!

I see. This part is common to
all amino acids.

This part is different
for each amino acid.

Amphoteric
ion

There are 20 Since there are 20
varieties of . varieties of , there
Remember that—
are also 20 types
it's important! of amino acids.

And...