The genetic code is stored in deoxyribonucleic acid (DNA), which consists of 4 nucleotides and is represented by 4 different letters. American researchers have recently synthesized a new DNA structure consisting of eight letters, which doubles the information storage density and is expected to be applied to synthetic biology and other fields in the future.

DNA is a complex molecule that stores and transmits genetic information. It consists of four nucleotides, adenine, thymine, cytosine, and guanine.

The research team led by Steven Bunner, the US Applied Molecular Evolution Foundation, published a report in the new issue of the journal Science, saying that the biggest difference between their new DNA molecular system and natural DNA is that it has eight Not 4 life information components. In addition to four natural nucleotides, including adenine, and four other structurally similar artificial information units, they together form a double helix structure that can store and transmit information.

The researchers named the molecular system "Hachimoji." It is worth mentioning that the synthesis of novel DNA structures means that the natural DNA structure on Earth is not necessarily the only infrastructure for life.

Benner said the research team carefully analyzed the shape, size and structure of the artificial DNA. "This will help expand our understanding of the molecular structure of extraterrestrial life for storing genetic information." (Reporter Zhou Zhou)

Source: Health News Network

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