Researchers show that four-stranded DNA is formed and unfolded

Researchers at Umeå College in Sweden have identified that certain DNA sequences that are abundant in the DNA building block guanine in the yeast species, Schizosaccharomyces pombe, can form four-stranded DNA. In a study published today in the journal Nucleic Acids Analysis, the researchers also clearly show that the motor protein Pfh1 can unfold these DNA buildings and thus add to keeping an intact genome.

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