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originally posted by: FamCore
a reply to: neoholographic
I'm learning a lot following this thread. S & F OP, happy I stumbled into here
Computational biologist Sergei Maslov of Brookhaven National Laboratory worked with graduate student Tin Yau Pang from Stony Brook University to compare the frequency with which components "survive" in two complex systems: bacterial genomes and operating systems on Linux computers. Their work is published in the Proceedings of the National Academy of Sciences.
Maslov and Pang set out to determine not only why some specialized genes or computer programs are very common while others are fairly rare, but to see how many components in any system are so important that they can't be eliminated. "If a bacteria genome doesn't have a particular gene, it will be dead on arrival," Maslov said. "How many of those genes are there? The same goes for large software systems. They have multiple components that work together and the systems require just the right components working together to thrive.'"
Using data from the massive sequencing of bacterial genomes, now a part of the DOE Systems Biology Knowledgebase (KBase), Maslov and Pang examined the frequency of usage of crucial bits of genetic code in the metabolic processes of 500 bacterial species and found a surprising similarity with the frequency of installation of 200,000 Linux packages on more than 2 million individual computers. Linux is an open source software collaboration that allows designers to modify source code to create programs for public use.
It may seem logical, but the surprising part of this finding is how universal it is. "It is almost expected that the frequency of usage of any component is correlated with how many other components depend on it," said Maslov. "But we found that we can determine the number of crucial components – those without which other components couldn't function – by a simple calculation that holds true both in biological systems and computer systems."
For both the bacteria and the computing systems, take the square root of the interdependent components and you can find the number of key components that are so important that not a single other piece can get by without them.
Maslov's finding applies equally to these complex networks because they are both examples of open access systems with components that are independently installed. "Bacteria are the ultimate BitTorrents of biology," he said, referring to a popular file-sharing protocol. "They have this enormous common pool of genes that they are freely sharing with each other. Bacterial systems can easily add or remove genes from their genomes through what's called horizontal gene transfer, a kind of file sharing between bacteria," Maslov said.
Voigt and colleagues at Boston University and the National Institute of Standards and Technology have used this language, which they describe in the April 1 issue of Science
originally posted by: neoholographic
a reply to: TerryDon79
You said:
Has nothing to do with computers.
Of course it does. It has everything to do with it. The DNA Code is software that carries instructions. With the right computer language we can hack into this computation. This is why he made the point that this could be done by a High School student that knows how to program.
For 15 years bioengineers have been tinkering with genetic code to alter cells manually, but it is laborious and involves a great deal of trial and error.
But users of the new programming language need no special knowledge of genetic engineering. “You could be completely naive as to how any of it works. That’s what’s really different about this,” added Prof Voigt .
“You could be a student in high school and go onto the Web-based server and type out the program you want, and it spits back the DNA sequence.
This isn't just about biology. They have been trying to tinker with the genetic code to alter cells but they couldn't until they came up with a new programming language. Why is that? It's because DNA is a program and like any program it can be hacked into.
originally posted by: Phantom423
This website has some nice animations of how it all works:
www.pbs.org...
...programme them to carry out new tasks.
To create a version of the language that would work for cells, the researchers designed computing elements such as sensors that can be encoded in a bacterial cell’s DNA.
The sensors can detect different compounds, such as oxygen or glucose, as well as light, temperature, acidity, and other environmental conditions.
...
The first programmes altered the function of cells so that they responded to different environmental conditions such as the level of oxygen.
"Mommy I want a unicorn with zebra stripes."
originally posted by: neoholographic
This is just more evidence that we live in a computer simulation...
originally posted by: whereislogic
originally posted by: Phantom423
This website has some nice animations of how it all works:
www.pbs.org...
Animations are great, I've found that videos relate everything involved in that process the fastest (cause then you can see the whole operation in action and in 3D as opposed to pictures with inaccurate representations for the enzymes and protein complexes involved in DNA > RNA > protein transcription, translation and folding. As well as some other related operations in the cell). There's a video in this playlist that is very detailed. You might like some of the other videos as well:
Real science, knowledge about realities compared to philosophies and stories
About the article in the OP, I found the article somewhat vague, perhaps someone could figure out a bit more about the lines in the article that say:
...programme them to carry out new tasks.
What new tasks exactly? What's the programming based on exactly and how does it exactly work (are we talking about manipulating genetic switches that regulate gene expression)?
More information perhaps about that from the article but still a bit vague to me:
To create a version of the language that would work for cells, the researchers designed computing elements such as sensors that can be encoded in a bacterial cell’s DNA.
The sensors can detect different compounds, such as oxygen or glucose, as well as light, temperature, acidity, and other environmental conditions.
...
The first programmes altered the function of cells so that they responded to different environmental conditions such as the level of oxygen.
That's so little information, what are the sensors made of? Nucleotides and nucleotide sequences? Or are we talking extra or less repressors (made of proteins that are made of amino acids)? Screwing up the repressors or activating them through other means than usual? I know unicellular bacteria already have mechanisms to detect a variety of environmental conditions, so perhaps there's something that can be compared with when talking about these "sensors"? In what way did the cells respond differently from their usual response to "different environmental conditions such as the level of oxygen"? It's unclear to me what they've actually accomplished (other than claiming and marketing a neat computer program that may or may not be able to come up with viable DNA sequences to use in genetic engineering, that's unclear to me from this article).
Oh, btw, regarding the OP's mention of a "simulation", there's nothing about the tar-water distributing Bishop Berkeley and his philosophy about immaterialism in the article linked to. So there's no need to talk about simulations and perhaps it may be an idea for everyone here to figure out where that idea/philosophy came from and what other suggestions that man has made regarding what's beneficial to either your body or your mind. Remember that philosophies and myths are modified over time, or change (slightly) over time, or additions are made or branches appear. But the core way of thinking remains the same and demonstrates patterns (behavioural sometimes, otherwise it's in the way people talk about these philosophies or how they express their thoughts about it).
Here's one of the mechanisms I spoke of, but there are a whole bunch of different ones. There are also inhibitor proteins you can influence to change the cell's usual response (but it sounds from the article that they coded some nucleotide sequences into the DNA, I'd like to know some specifics about the chain of effects and which codes they used, perhaps borrowed from known codes for repressors, or inhibitors, etc. Or are we talking codes that recognize repressors that are already produced by the cell? So many questions left...):
originally posted by: Phantom423
I think some of the titles and vocabulary are more than a little inflammatory. Words like "Hijack"...
Remember that neural network technology is founded on human brain networking - it's not exactly an innovation. Nature already did it.
originally posted by: Phantom423
Nature ... did it.
originally posted by: ventian
a reply to: svetlana84
Found the original article here. Dated March 31, 2016.
Now, where can I find the source code for the language? It says they are waiting to release a UI for browsers, but I am ready to tinker with this.
originally posted by: neoholographic
This is just more evidence that we live in a computer simulation that can be hacked just like anything else that uses computer programming. I think the universe itself can be programmed and hacked into and you could change the laws of physics. This is because the universe is information at a fundamental level. Like MIT Professor Seth Lloyd said, the universe doesn't act like a quantum computer, the universe is a quantum computer or a simulation being ran on a quantum computer.
Scientists at MIT have proven they can ‘hack’ living cells and programme them to carry out new tasks.
In the same way that computer language tells a machine how to operate, researchers have shown it is possible to write DNA ‘code’ and insert it into bacteria to alter how they function.
They hope that one day cells could be programmed so they could release cancer drugs on encountering a tumour, or allow plants to fight back with insecticide when a pest comes near.
“It is literally a programming language for bacteria,” said Christopher Voigt, an MIT professor of biological engineering.
“You use a text-based language, just like you’re programming a computer. Then you take that text and you compile it and it turns it into a DNA sequence that you put into the cell, and the circuit runs inside the cell.”
“You could be a student in high school and go onto the Web-based server and type out the program you want, and it spits back the DNA sequence.
“Unit now it would take years to build these types of circuits. Now you just hit the button and immediately get a DNA sequence to test.”
The language is based on Verilog, which is commonly used to program computer chips.
www.telegraph.co.uk...
You combine this with Crispr, which gives you the simply edit genes and the skies the limit. You can program an entire new species. This will be a boon for healthcare though because like the article said, you could program cells to fight cancer and other diseases and we will be able to edit these things out all together.