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Scientists Marvel at Enzyme Efficiency (what should take billions of years, done in miliseconds)
CEH ^
| November 11, 2008
Posted on 11/13/2008 3:19:22 PM PST by GodGunsGuts
Many chemical reactions occur from simple collisions. One atom may have spare electrons, another may need them. Attracted by each others valences, the atoms collide and bonds form. Not so with biological enzymes: these molecular machines owe their efficiency to their three-dimensional shapes. Made up of hundreds of amino acids, enzymes have active sites where precise interactions occur. Some even have moving parts that guide the molecules into the active site (e.g., 07/31/2004). The substrate leaves the enzyme unchanged, ready for its next customer. Scientists are finding that the precision of these machines is finely tuned. Here are some astonishing examples from recent papers:
(Excerpt) Read more at creationsafaris.com ...
TOPICS: Constitution/Conservatism; Culture/Society; News/Current Events; Philosophy
KEYWORDS: creation; enzyme; evolution
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To: gondramB; editor-surveyor; metmom; Alamo-Girl; betty boop; GourmetDan; MrB; valkyry1; ...
To: GodGunsGuts
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.
3
posted on
11/13/2008 3:25:31 PM PST
by
valkyry1
(McCain/Palin 2008)
To: GodGunsGuts
But it was not designed, honest! Accidental efficiency, that's what it is! LOL!
4
posted on
11/13/2008 3:30:24 PM PST
by
DelphiUser
("You can lead a man to knowledge, but you can't make him think")
To: DelphiUser
Remember, it’s called “Darwin’s Theory” instead of “Darwin’s Facts” for a reason. Oh, and he died a believer, IIRC.
5
posted on
11/13/2008 3:32:33 PM PST
by
2ndDivisionVet
(Barack Obama: In Error and arrogant -- he's errogant!)
To: valkyry1
Tell that to the people who say the US government created HIV.
6
posted on
11/13/2008 3:32:44 PM PST
by
ruination
To: valkyry1
Amazing, no? How the evos can believe blind chance can produce sophistication many orders of magnitude greater than purposeful human invention is beyond me.
To: DelphiUser
That’s literally what the Evos are positing. Amazing, isn’t it!
To: ruination
I doubt Maxine Waters would hear me out on that
9
posted on
11/13/2008 3:48:20 PM PST
by
valkyry1
(McCain/Palin 2008)
To: GodGunsGuts
The more they learn the more there is to learn.
10
posted on
11/13/2008 3:48:35 PM PST
by
TASMANIANRED
(TAZ:Untamed, Unpredictable, Uninhibited.)
To: 2ndDivisionVet
Remember, its called Darwins Theory instead of Darwins Facts for a reason. Oh, and he died a believer, IIRC.
I had heard he recanted at the end, but when I looked it up there is no credible evidence of it. He apparently died a believer of his own theory.
11
posted on
11/13/2008 3:59:54 PM PST
by
DelphiUser
("You can lead a man to knowledge, but you can't make him think")
To: GodGunsGuts
Thats literally what the Evos are positing. Amazing, isnt it!
I guess we need to find a simpler way to say "Irreducibly Complex" (LOL!)
12
posted on
11/13/2008 4:02:00 PM PST
by
DelphiUser
("You can lead a man to knowledge, but you can't make him think")
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: GodGunsGuts
How the evos can believe blind chance can produce sophistication many orders of magnitude greater than purposeful human invention is beyond me.IOW, they expect us to believe that something happened by accident that we can't even make happen on purpose.
14
posted on
11/13/2008 4:14:03 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)
To: metmom
To: DelphiUser
It`s true.
Random chance (ToE) rolls the dice and it comes up
7s virtually every single time.
To: GodGunsGuts
Can't resist.
Romans 1:20
For since the creation of the world God's invisible qualities his eternal power and divine nature have been clearly seen, being understood from what has been made, so that men are without excuse.
To: Blackhawk
Amen! And thank the Lord you have not built up a resistance to that verse!!!
To: GodGunsGuts
20
posted on
11/13/2008 5:07:20 PM PST
by
Kevmo
(Palin/Hunter 2012)
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