Scientists Discover a Self-Replicating Protein Structure, And It Could Have Built The First Life on

[Dante]

No, we don't have all the answers, but we're still looking.

Scientists Discover a Self-Replicating Protein Structure, And It Could Have Built The First Life on​

Stop with the science!

We need our myths and superstitions.

 

[ding]

You probably feel sorry for Einstein too.

You'll forgive me if I don't put much stock in your feelings.

Or your science.

Says the guy who says rocks are alive. After that it's hard to take anything you say seriously.

 

[ding]

Stop with the science!

We need our myths and superstitions.

Apu knows even less about science than you do.

 

[Dante]

Apu knows even less about science than you do.

impossible.

A Stable Genius like you should know that

 

[ding]

impossible.

A Stable Genius like you should know that

You should be embarrassed but you're not. The stupidity that you - and the others like you - spew is mind boggling. Apu can't compose a coherent sentence to save his life, you don't have any thoughts of your own, one guy thinks long chains of organic molecules evolve and another guy thinks rocks are living.

 

[ding]

If there were natural, repeatable and predictable folding sequences of long chains of organic molecules life would be popping up everywhere.

 

[ding]

No, we don't have all the answers, but we're still looking.
We'll never have all the answers as they just generate new questions.

Scientists Discover a Self-Replicating Protein Structure, And It Could Have Built The First Life on Earth
Mike McRae - 4 Mar 2018 - sciencealert.com
Scientists Discover a Self-Replicating Protein Structure, And It Could Have Built The First Life on Earth

Roughly 4 billion years ago an assortment of complex organic compounds went from being mere carbon soup to replicating biochemistry – the first steps to life on Earth.​

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The order of these steps has been a source of debate for decades. Now, a recent discovery about a common protein structure could help tip the balance, bringing us closer to understanding just how we came to be here.​

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Researchers from Eidgenössische Technische Hochschule (ETH) in Zürich have demonstrated that short strands of amyloid protein structures can direct the selection of amino acids to build even more amyloids.​

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If the word amyloid doesn't sound familiar, they're a protein structure that's increasingly being found all over the place in nature.​

[.....]​

`

Don't proteins come from plants and animals?

 

[scruffy]

But you think rocks are alive.

Everything is alive.

 

[scruffy]

But you think rocks are alive.

It doesn't matter what I think.

It doesn't matter what you think either.

Life goes on without either of us.

 

[alang1216]

It's not. You need genetics for evolution. Why don't you know this?

A self-replicating molecule will pass all the information needed for evolution in the very structure of the molecule, just as DNA does. Why don't you know this?

 

[ding]

A self-replicating molecule will pass all the information needed for evolution in the very structure of the molecule, just as DNA does. Why don't you know this?

Because it doesn't. There's no reproduction. Only random chance. What information do you believe is being passed on?

 

[alang1216]

Because it doesn't. There's no reproduction. Only random chance. What information do you believe is being passed on?

Every time the self-replicating molecule grows and splits it 'reproduces'. Its offspring have the same physical structure that will allow them to self-replicate so it passes on that information. More efficient molecules will out compete others and if they can split other molecules and incorporate them they will be selected for and become much more common.

 

[ding]

Every time the self-replicating molecule grows and splits it 'reproduces'. Its offspring have the same physical structure that will allow them to self-replicate so it passes on that information. More efficient molecules will out compete others and if they can split other molecules and incorporate them they will be selected for and become much more common.

Walk me through this self replicating process. Where are these molecules coming from?

 

[ding]

Every time the self-replicating molecule grows and splits it 'reproduces'. Its offspring have the same physical structure that will allow them to self-replicate so it passes on that information. More efficient molecules will out compete others and if they can split other molecules and incorporate them they will be selected for and become much more common.

Where do proteins and amino acids come from?

 

[alang1216]

Walk me through this self replicating process. Where are these molecules coming from?

I'm hardly an expert. Look here or here or here.

What is it? Self-replication is a means by which an individual can duplicate itself. Such molecular photocopying occurs when are action product directs its own formation from component parts. This has been hypothesized to be a route by which primitive life may have sustained itself. How does it work? It involves product-directed assembly of components to form a new product. The simplest self replicating system entails the joining of only two components. The product acts as a template to position the components correctly for the joining reaction, allowing for more efficient joining in the presence compared to the absence of the product. The newly-formed product then dissociates from the template to provide a new copy of the template with the potential to enter another cycle of replication.

 

[alang1216]

Where do proteins and amino acids come from?

They evolve over time from simpler molecules I'd guess.

 

[ding]

I'm hardly an expert. Look here or here or here.

What is it? Self-replication is a means by which an individual can duplicate itself. Such molecular photocopying occurs when are action product directs its own formation from component parts. This has been hypothesized to be a route by which primitive life may have sustained itself. How does it work? It involves product-directed assembly of components to form a new product. The simplest self replicating system entails the joining of only two components. The product acts as a template to position the components correctly for the joining reaction, allowing for more efficient joining in the presence compared to the absence of the product. The newly-formed product then dissociates from the template to provide a new copy of the template with the potential to enter another cycle of replication.

Where are these molecules coming from?

 

[ding]

They evolve over time from simpler molecules I'd guess.

Amino acids and proteins come from animals and plants. In other words, living things.

So how can you use amino acids and proteins in self replicating molecules unless plants and/or animals were in existence before that?

I tried to explain this to you before but your only interest was in arguing for what you believed. Even though what you believed was impossible to occur. So let me try again... life had to begin with long chains of organic molecules that resembled amino acids and folded themselves in the exact correct sequence according to chance. In this explanation there is no self replication. There is only chance.

 

[ding]

 

[ding]

They evolve over time from simpler molecules I'd guess.

And by "evolve" you mean to say random chance.