Page 65 - The Miracle of Protein

ADNAN OKTAR (HARUN YAHYA) 63

The Quaternary Structure of Proteins:
Combined Proteins
Imagine a desk with several telephones on it, whose cords

all become tangled up with one another. At first sight, it appears
impossible to determine which cord belongs to which phone.
Proteins, too, also intertwine with one another in similar very
complex ways.

Many proteins become able to perform their functions on-
ly after combining with one another. However, in order for pro-
teins to combine into giant molecules, very delicate balances
have to be established. For two proteins to combine, their
shapes must be as suited to one another as a hand to a glove.
Otherwise, protein molecules cannot merge. Think of jigsaw

puzzles as an example of this essential compatibility. If the
curves and extensions of one single piece do not match the next,
then completing the picture will be impossible. The same ap-
plies to proteins. If the shape of the bond of just one protein is
not correct, the giant combined molecule will not function. 12

Furthermore, if combined proteins are to discharge their
functions, it is also essential that they come together in the right
way and numbers. The hormone insulin is an example. This
protein organizes to store excess sugar in the bloodstream by
the combination of more than one amino acid chain. Any flaw
in the insulin molecule's structure will make it useless and cause

the individual to suffer from diabetes. When insulin fails to
function, the sugars that enter the bloodstream are excreted
without being fully metabolized or stored for future needs. As a
result, there can be insufficient sugar in the blood, and the cells'

energy requirements are not met. In such a situation, even
death is inevitable.