Science Created The First Stable Semisynthetic Organism

A team of scientists managed to create the first stable semisynthetic organism which is a breakthrough in the area.

A team of scientists managed to create the first stable semisynthetic organism, an achievement based on many years of work and which could open up many new paths.

Three years ago, a team of researchers reported a breakthrough. They presented the first organism with 6 bases. The genetic base of all the DNA-based life forms is based on four bases. These are A, T, G, and C. Or more exactly, adenine and thymine. And also guanine and cytosine.

In 2014, the scientists presented an organism that had 6 bases. Four of them, the aforementioned ones, were natural. The other two were artificial. They were titled X and Y.

The research team is part of the La Jolla, California Scripps Research Institute. They were led by Floyd Romesberg. At the time, the researchers were able to incorporate their new base pair. This was introduced into an E. coli bacterium. Still, the ensuing organism did not maintain the pair. It was eliminated during the division process.

The X and Y were slowly dropped. And the extra information they left behind was limited. Even though the DNA was modified, the data was left incomplete.

Now, Romesberg and his team beat the process. They were able to create the first stable semisynthetic organism. This is also a modified bacterium.

A research paper on the matter was released earlier this week. It was published in the Proceedings of the National Academy of Sciences. Available online since January 23, it is titled as follows. “A semisynthetic organism engineered for the stable expansion of the genetic alphabet”.

The stable semisynthetic organism was seen to be able to retain its synthetic base. They have remained in the DNA after the division process. This modified bacterium is based on three pairs. They are A-T, C-G, and the new X-Y.

Romesberg went to offer some details. According to him, the first semisynthetic organism had an unstable genome. This latter has to be stable throughout the lifespan. And not just for a day.

This first stable semisynthetic organism is able to do so. It has managed to maintain its extra information. As such, Romesberg declared that they have made it more life-like.

Researchers used a nucleotide transporter. This helped them create the modified bacterium. With help from the transporter, the semisynthetic organism was able to hold on to the X-Y pair. As it was maintained, the added pair was also copied. And it then distributed across the cell membrane.

CRISPR-Cas9 was used in order to test the results. This is a gene-editing tool. With it, the scientists analyzed the now stable semisynthetic organism.

They looked for cells containing the synthetic base. Such cells could have been marked as foreign. Because of this, the organism would have destroyed them.

For the moment, the added synthetic bases just exist. The stable semisynthetic organism has no utility for them. This fact has been specifically programmed. First of all, the scientists meant to determine if the bases could just survive.

It remains to be seen if the microbes will be imbued with the power to read the added code. Or when they may be determined to do so. According to the researchers, the current organism is a breakthrough in itself.

And making them read the code could open up a new path. It may help create protein currently unavailable in nature. As such, new medicine and drugs could be developed.

More research on the matter is nonetheless needed. Presently, the researchers pointed out the following fact. The study can be considered the foundation for future research and discoveries.

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Nancy Young

When I was younger I used to spend almost all of my free time playing computer games. My mom and dad would go mental over this. “You’re never going to do anything with your life if you are going to play games all day” they used to say. What was even more unusual was the fact that I played more games than most of the guys in my friend group. Looking back, I have to admit that I probably played a bit too much, but I also learned a lot of great things. When I turned 20 I decided that it was high-time to make some money of my own, but the only jobs I could get were that of waitress or cashier. How exciting. After several excruciating months of serving tables I had a great idea: since I love gaming so much, why don’t I write about it? That’s when I started doing small writing projects on Elance. Eventually, I got an offer for a part-time job. During that time I learned all about content marketing strategies and how search engines work. I started writing about various topics such as technology, health and lifestyle and discovered that I was actually good at it. On November 24, 2014, I became part of the ArgyllFreePress team.