#科技头条#【科学家确认人类细胞内新的DNA结构】

#科技头条#【科学家确认人类细胞内新的DNA结构】据外媒报道,近日,科学家首次发现了一种新的DNA结构,这种结构被称为扭结(twisted knot),在活细胞中前所未有,其证实了我们复杂的遗传密码是由更复杂的对称构建的,而不仅与DNA的双螺旋结构相关,这些分子变体的形式影响我们的生物学功能。这项新研究的第一作者Garvan的Mahdi Zeraati说:”他们似乎有可能帮助开启或关闭基因,并影响基因是否被主动读取。"

Scientists Confirmed a New DNA Structure Inside Human Cells

Trax3001BBS quotes Science Alert:For the first time, scientists have identified the existence of a new DNA structure never before seen in living cells. The discovery of what's described as a "twisted knot" of DNA in living cells confirms our complex genetic code is crafted with more intricate symmetry than just the double helix structure everybody associates with DNA -- and the forms these molecular variants take affect how our biology functions...

"It seems likely that they are there to help switch genes on or off," according to Garvan's Mahdi Zeraati, the first author of the new study, "and to affect whether a gene is actively read or not."

 

https://science.slashdot.org/story/18/04/28/1944256/scientists-confirmed-a-new-dna-structure-inside-human-cells


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