Unraveling the G4 knot: How cells untie DNA to protect the genome

Not all DNA looks like the familiar twisted ladder. Sometimes, parts of our genetic code fold into unusual shapes. One such structure, the G-quadruplex (G4), looks like a knot. These knots can play important roles in turning genes on or off. But if not untangled in time, they can harm our genome.

Jun 12, 2025 - 19:08
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Not all DNA looks like the familiar twisted ladder. Sometimes, parts of our genetic code fold into unusual shapes. One such structure, the G-quadruplex (G4), looks like a knot. These knots can play important roles in turning genes on or off. But if not untangled in time, they can harm our genome.