To: valkyry1
The ultimate: Man-made catalysts cant match natural ones, said Anthony J. Kirby and Florian Hollfelder in Nature.1 One enzyme another team had measured, ketosteroid isomerase, is so precisely fitted to its substrate that a change of 10 picometers (where a picometer is 10-12 meters) is enough to decrease its efficiency. The active site holds onto the substrate while another molecular switch transfers a single electron. Available tools for protein engineering clearly lack the subtle touch that is required to prepare effective designer enzymes, they said. Our fumbling attempts at engineering protein catalysts are like trying to thread needles with boxing gloves on. The best reaction rates of artificial enzymes we have designed, they said, are still tens of billions of times smaller than those of many enzymes.
But it all just happened by accident....really....
13 posted on
11/13/2008 4:11:34 PM PST by
metmom
(Welfare was never meant to be a career choice.)
To: metmom; GodGunsGuts; little jeremiah
The evolutionists attribute very magical powers to the fantasy gods of lifeless mindless random chance and natural selection.
Let them go unto their Gods. Similar thruths are written in the Bible and the Bhagavad Gita IIRC
15 posted on
11/13/2008 4:22:57 PM PST by
valkyry1
(McCain/Palin 2008)
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