BY TIMOTHY G.
STANDISH
S ELISHA'S HEALTH
DECLINED IN HIS OLD AGE, Joash realized that soon Israel would be without God's
prophet. 2 Kings 13:14-17 gives a moving account of the king's visit to Elisha's
deathbed. During this visit the king and the prophet shot an arrow out of the
east window of Elisha's room to symbolize deliverance from Syria.
From outside,
the arrow provided little hint of the poignant scene inside, but some inferences
could logically be drawn. Arrows don't shoot out of windows by themselves, so
it would be reasonable to infer a human cause for the arrow's flight. Where
the arrow landed might provide additional information about the human cause.
If a target happened to be placed fifty meters to the east of Elisha's house,
and the arrow hit the bull's-eye, it would suggest that either a very skilled
or lucky archer had shot the arrow. If several other arrows came out of the
window and each one hit the bull's-eye, luck could be discarded as a cause,
while skill-some sort of ability with a bow and arrow-would logically be implied.
On the other hand, if arrows came flying out of the window and hit the ground,
house walls, and an olive orchard, but not the target, little skill would be
inferred.
In the world of
molecular genetics a situation similar to multiple arrows in the bull's-eye
exists. Just as arrows in the bull's-eye suggest a skilled archer, information
coded in molecules within cells suggests an intelligent Creator. DNA-encoded
information must fall within a specified range if the molecular machines made
from proteins it codes for are to work correctly. An example of this is information
associated with a small protein that is an important signal for blood vessel
constriction. This protein, called endothelin-1, is part of an elegant system
for shunting blood away from where it is not needed, and may also play a role
in regulation of blood pressure. Because of its important work endothelin-1
is both essential and very dangerous. In the wrong place or at the wrong time
endothelin-1 could kill a person. The body must control endothelin-1 within
tight constraints-something like hitting the bull's-eye-or death will result.
Information about
how to make endothelin-1 is contained in a DNA sequence found on human chromosome
number 6. The DNA sequence coding for endothelin-1 (the endothelin-1 gene) is
analogous to a long paragraph. Instead of letters of the alphabet to spell out
information, DNA uses chemicals called bases. These bases are strung together
in specific sequences that are meaningful, just as letters are strung together
in specific sequences to produce meaningful words and sentences. Getting a meaningful
sequence of bases in DNA is like hitting the bull's-eye. There may be some flexibility
possible, but not much. The bull's-eye may be four inches across, so arrows
can hit the target slightly less than four inches apart and still be within
the bull's-eye, but arrows five inches apart cannot both be in the bull's-eye.
A DNA gene sequence may fluctuate a small amount and remain functional, but
significant deviation misses the bull's-eye, resulting in gibberish.
Information in
the endothelin-1 gene falls into several classes, including when and where to
make the endothelin-1 protein, the sequence of amino acid chemicals to combine
when making the protein, and so on. Two interesting kinds of information contained
in the endothelin-1 DNA gene sequence illustrate a small sample of the information
present-and show how important the notion of an organized and deliberate creation
that "hits the bull's-eye" really is.
The first is instructions
for part of the protein that acts like a gun safety catch. As I have said before,
endothelin-1 is dangerous in the wrong place or at the wrong time, so when cells
release the protein, there is this "safety catch" on until the protein
is in the right place. Special enzymes recognize information encoded in the
protein, signaling exactly where to cut the "safety catch" off and
thus activate the protein's activity. Encoded information for the "safety
catch" and for its removal is equivalent to an arrow in the bull's-eye,
suggesting that the protein was designed by an intelligent being who put the
information there.
Instructions for
making proteins have to be moved from the nucleus, where they are stored in
DNA, to the cytoplasm, where proteins are produced. This is done using a chemical
very similar to DNA, called messenger RNA. Like information copied from a library
reference book, information in RNA can leave the library, but the reference
book, the DNA from which it is copied, must stay behind. Once in the cytoplasm,
tiny protein factories start making endothelin-1 based on the information carried
in messenger RNA. Endothelin-1 will continue to be made as long as the messenger
RNA is present. But because endothelin-1 is continuously being created, controlling
the number of endothelin-1 molecules produced is a problem. The ingenious solution
is contained in the second amazing category of information encoded in the endothelin-1
gene. A special set of signals for RNA destruction is copied from DNA onto the
end of endothelin-1 messenger RNA. This destruction sequence is encountered
only after RNA coding for the endothelin-1 protein has passed through a protein
factory. In other words, endothelin-1 messenger RNA is like tape-recorded instructions
in a spy movie. Translated from RNA to English, the information is equivalent
to "This message will self- destruct in five seconds." By ensuring
destruction of endothelin-1 messenger RNA after the protein is produced, nature
once again gets an arrow in the bull's-eye.
Just as we infer
a skilled archer behind several arrows in a bull's-eye, we infer intelligence
behind the presence of information. Information encoded in DNA sequences that
molecular biologists call genes logically infers intelligence as a cause. Even
the simplest bacteria have hundreds of information-rich genes. We know from
personal experience that information is the product of intelligence. When we
see information that "hits the bull's-eye" repeatedly in the endothelin-1
gene, it is logical to conclude that some intelligent Creator put the information
there. Bible-believing Christians have no problem with this inference from information
to design, because by definition Christians model their lives after the Creator,
who put the information there. When we study nature, we see arrows in the bull's-eye
and naturally infer God's hand behind creation.
The arrow flew
out of Elisha's window toward the east as a promise of victory over Syrian oppression.
Not everyone who saw the arrow shoot eastward understood the sign at that time,
but Bible-believing Christians can understand the signs God is revealing to
this end-time generation. Our Creator made us and revealed Himself in the flesh
at the time of His first advent, when "the Word became flesh" (John
1:14, NIV). Now as the Second Advent approaches He reveals Himself in the flesh
of all creation. When we see nature "hitting the bull's-eye" time
and time again, God is giving us a sign: He is the Creator and so has the power
to recreate us in His image. Information within cells affirms the promise that
victory over the oppression of sin and death is very near.
________________________
Timothy G. Standish, Ph.D., is a research scientist at the Geoscience Research
Institute in Loma Linda, California.