Page 55 - The Miracle of Protein

ADNAN OKTAR (HARUN YAHYA) 53

(a) Primary structure Chain of amino acids

Bonds

OR
Alpha-helix
(b) Secondary structure
(pleated sheet)

(c) Tertiary structure
(d) Quaternary structure Hemoglobin
(globular protein)

PRIMARY
STRUCTURE:
Amino acids in a
certain number,
shape and order,
make a chain.
Secondary structure

SECONDARY STRUCTURE:
Amino acid chains fold into
helices. This is because every
amino acid links with the one
next to it with a hydrogen bond.

Tertiary
structure
TERTIARY STRUCTURE:
Amino acid chain folds like a ball
of wool using various bonds.

QUATERNARY STRUCTURE:
Quaternary Previously folded protein chains
structure join together to make a single
protein, like this ‘hemoglobin
protein’.