Science
Formation of quadruple helix DNA tracked in live human cells for the first time – Medical Xpress
DNA usually forms the classic double helix shape discovered in 1953—two strands wound around each other. Several other structures have been formed in test tubes, but this does not necessarily mean they form within living cells.
DNA usually forms the classic double helix shape discovered in 1953two strands wound around each other. Several other structures have been formed in test tubes, but this does not necessarily mean they form within living cells.
Quadruple helix structures, called DNA G-quadruplexes (G4s), have previously been detected in cells. However, the technique used required either killing the cells or using high concentrations of chemical probes to visualise G4 formation, so their actual presence within li…
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