Page 36 - The Miraculous Machine that Works for an Entire Lifetime: Enzyme

Harun Yahya

One hundred amino acids of 20 different kinds can be arranged in 20 100
(10 130 ) different ways. If 10 11 of these could function as the primitive en-
zyme, and if a billion trillion (10 21 ) of the various protein molecules of 100
amino acids formed each second for five billion years (approximately
10 17 seconds) the chance of getting a single molecule of one of the re-
quired sequences is 10 130 /10 21 x10 17 x10 11 , or only one chance out of 10 81 .
This is, for all practical purposes, equal to zero probability. 17

As this example shows, it's impossible for amino acids to come to-
gether by chance in the correct sequence to form an enzyme. Therefore,
any one enzyme's existence and functions totally eliminate the idea of
gradual evolution.

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In the structure of the amino acids that make up the enzyme, the
various side chains accumulate in one region of the enzyme to form a
three-dimensional structure known as the "active site." This is where
the enzyme binds to other substances
during a reaction.
That substance, on which the en-
zyme will act, is known as the sub- substrate
strate. The active site of any particular
enzyme can fit into the substrate of on-
ly the molecule it will affect. It is im- The enzyme's active site
combines with a sub-
possible for this substrate to bind to the
stance known as the substrate. The
active site of any other enzyme. The en- substrate on which every enzyme
acts is unique to that enzyme.
zymes' active sites possess two impor-
tant components. One of them recognizes the substrate and the other,
upon binding to the substrate, is responsible for catalyzing the reaction.
Within the body, in fact, the enzyme and the substrate are two
structures that are entirely foreign to one another. Although they have
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