Peptides may hold 'missing link' to life

Emory University ^ | Apr 27, 2010 | Unknown

[decimon]

Emory scientists have discovered that simple peptides can organize into bi-layer membranes. The finding suggests a “missing link” between the pre-biotic Earth’s chemical inventory and the organizational scaffolding essential to life.

“We’ve shown that peptides can form the kind of membranes needed to create long-range order,” says chemistry graduate student Seth Childers, lead author of the paper recently published by the German Chemical Society’s Angewandte Chemie. “What’s also interesting is that these peptide membranes may have the potential to function in a complex way, like a protein.”

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In addition to providing clues to the origins of life, the findings may shed light on protein assemblies related to Alzheimer’s disease, Type 2 diabetes, and dozens of other serious ailments.

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[decimon]

Gleaning of life ping.

[decimon]

[WakeUpAndVote]

Who'da thunk.

[BudgieRamone]

With mint frosting?

[CholeraJoe]

"Squawk! Polly want a peptide?"

[Aria]

What a GORGEOUS bird!

[backwoods-engineer]

The finding suggests a “missing link” between the pre-biotic Earth’s chemical inventory and the organizational scaffolding essential to life.

Bull. Crap. Explain a mechanism for homochirality (all amino acids in life are "left handed") and I will be impressed. Without that, there is no compelling evidence for a mechanistic origin of life.

[decimon]

Homochivalry? Well, I’ve never given any thought to that.

[Cacique]

btt

[backwoods-engineer]

Homochivalry? Well, I’ve never given any thought to that.

LOL! Nor I, my FRiend. My previous comments were not directed at you, but the researchers, by the way.

[SunkenCiv]

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[Eaker]

Ping because you are mentioned in the thread title.

[humblegunner]

I ain’t missing.

I’m right here.

[colorado tanker]

Besides helping explain the origin of life peptides fight wrinkles.

[ElkGroveDan]

Speaking of peptides, have you tried the cellular peptide cake with mint frosting?

[LiteKeeper]

Still doesn't explain the emergence of information.

Five components necessary for there to be information:

• Code - that is mutually understandable
• Rules - for arranging the code
• Meaning - assigned to the arranged code
• Action - intended from the information
• Purpose

This requires intelligence to generate...not a potential property of pure matter. And this is the real "missing link"

[wildbill]

And riptides will link you to missing life. There must be some scientific parallelism connection here.

[SunkenCiv]

Might as well face it, we’re addicted to gov’.