Sophisticated Protein Motor Defies Evolution | The Institute for Creation Research

Sophisticated Protein Motor Defies Evolution

God appears to have left His unmistakable signature throughout His creation, even on the smallest parts.

ATP synthase, an important enzyme, manufactures (synthesizes) a vital, energy-rich compound called ATP. A stream of protons from an acidic area flows through ATP synthase to power its spinning rotor, which in turn activates rocking cams to make ATP. It can also run in reverse, acting as a proton pump.

The device takes clever advantage of the tendency for acid to neutralize itself. ATP synthase harnesses the pressure of concentrated protons and converts it to mechanical energy as a spinning rotor and axle. It then immediately converts that to chemical energy in ATP. The full assembly includes the asymmetrical axle, six rocking cams, two stators, a bushing, a 12-part rotor, and two half-stroke cylinders.

Biochemists have known this for years, but how the motor manages and manipulates single particles smaller than atoms—individual protons—has remained a mystery.

Two Canadian researchers therefore looked into the innermost workings of ATP synthase. Using electron cryomicroscopy, they produced the first-ever three-dimensional representation of all the enzyme's parts fitted together the way they are in the actual enzyme.1 Their study results, published in the journal Nature, enabled them to reconstruct the specific sequence of timed events that makes the enzyme work. And it's a good thing that it functions, because every living cell—from bacteria to brain cells—depends on one or another version of ATP synthase.2

The team found two half-channels situated in the base of the motor, forming something like two half-stroke cylinders. The first half-channel directs a single proton to a precise spot on one of the rotor's 12 segments where a negatively charged oxygen atom receives and temporarily holds it. After spinning 330 degrees on the rotor, the proton re-enters the cylinder assembly through the second half-channel, and is finally released into an area of lower proton concentration.

The authors did not mention evolution in their description of this remarkable biological machine. And that's very appropriate, since such a sophisticated system could never have resulted from natural processes. It could only be the work of a sophisticated Designer.

References

  1. Lau, W. C. Y. and J. L. Rubinstein. 2012. Subnanometre-resolution structure of the intact Thermus thermophilus H+-driven ATP synthase. Nature. 481 (7380): 214-218.
  2. Thomas, B. 2009. ATP synthase: Majestic molecular machine made by a mastermind. Creation. 31 (4): 21-23.

Image credit: Three-dimensional map of the Thermus thermophilus ATP synthase. Copyright © 2012 Nature Publishing Group. Adapted for use in accordance with federal copyright (fair use doctrine) law. Usage by ICR does not imply endorsement of copyright holders.

* Mr. Thomas is Science Writer at the Institute for Creation Research.

Article posted on February 2, 2012.

The Latest
NEWS
Traces of "Oldest Ancestor" Found
A new study released on March 23, 2020, claims that evolutionary scientists have identified the oldest human ancestor. The fossil evidence for this assertion...

COVID-19
Three Positives from COVID-19
Coronavirus (COVID-19) is no surprise to God. God knew about this pandemic before the dawn of His creation. Some people may question why God allows such...

COVID-19
The Gospel and COVID-19
It is obvious that life in America, and most parts of the world, has drastically changed in the last few months due to the novel coronavirus. Whether we...

COVID-19
A Time for Firsts Amid COVID-19
All of us have experience with firsts, and today is no exception as America sails through the uncharted waters of the coronavirus pandemic (COVID-19)....

COVID-19
Psalm 8 and COVID-19
Here in Dallas County, we are under “shelter in place” orders as part of the plan to slow the progress of the global coronavirus pandemic.1...

COVID-19
What’s the Difference Between Virus and Bacteria?
As we are embroiled in a worldwide COVID-19 pandemic, it is important to know the basics of these tragic viral infections and why the medical community...

NEWS
ICR Beginning Search for a New President
As was noted in my article “Biblical Succession” in the April issue of Acts & Facts, the ICR Board of Trustees has authorized a national...

COVID-19
Potential Coronavirus Treatments Enter Large Clinical Trials
Some good news in potential treatment options for COVID-19 was reported in the American journal Science.1 Four new treatment options were being...

NEWS
Yellowstone Supervolcano Unlikely to Blow
For several years, secular scientists have been predicting a possible supervolcano eruption at Yellowstone National Park. Recently, the London Daily Mail...

NEWS
Deep Water Squid Communication Mystifies Scientists
In the deep, dark, cold waters of the Pacific Ocean—about 1,500 feet below the surface— hundreds of Humboldt squid the size of small humans...