2009
DOI: 10.1146/annurev.biochem.78.030107.090101
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A Journey in the World of DNA Rings and Beyond

Abstract: I was born in China and would have remained there but for the tumultuous events that led many of my generation to the United States for graduate studies. Norman Davidson introduced me to DNA when I became a postdoctoral fellow in his group at the California Institute of Technology in 1964, and a fortuitous conversation there ignited my interest in DNA ring formation, which later led me to study different topological forms of DNA rings—catenanes, knots, and supercoils. In 1968, a chance observation led me to id… Show more

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Cited by 48 publications
(37 citation statements)
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“…DNA topoisomerases II (Top2) are nuclear enzymes that are essential for the suppression of topological constraints associated with DNA replication, DNA recombination, and chromosome condensation and segregation during mitosis (Nitiss, 2009a;Wang, 2009). They act as dimers and cleave both strands of the DNA substrate, allowing the passage of an intact duplex molecule through the break where each of the monomers remains covalently linked to the 5Ј-end of the cleaved strands (Nitiss, 2009a;Wang, 2009).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…DNA topoisomerases II (Top2) are nuclear enzymes that are essential for the suppression of topological constraints associated with DNA replication, DNA recombination, and chromosome condensation and segregation during mitosis (Nitiss, 2009a;Wang, 2009). They act as dimers and cleave both strands of the DNA substrate, allowing the passage of an intact duplex molecule through the break where each of the monomers remains covalently linked to the 5Ј-end of the cleaved strands (Nitiss, 2009a;Wang, 2009).…”
Section: Introductionmentioning
confidence: 99%
“…They act as dimers and cleave both strands of the DNA substrate, allowing the passage of an intact duplex molecule through the break where each of the monomers remains covalently linked to the 5Ј-end of the cleaved strands (Nitiss, 2009a;Wang, 2009). DNA continuity is then restored by religation of the transient break.…”
Section: Introductionmentioning
confidence: 99%
“…DNA topoisomerases are found in all the three domains of life and are essential for vital cellular processes because they modify and maintain the topology of DNA (1)(2)(3)(4). Topoisomerases are divided into two main types (Type I and Type II) based on whether they cleave single-or double-stranded DNA.…”
mentioning
confidence: 99%
“…W wyniku tego działania następuje blokowanie zasadniczych procesów życiowych komórki bakteryjnej wraz z uszkodzeniem replikacji DNA, transkrypcji, naprawy i rekombinacji. Z kolei zakłócenie separacji nici podwójnego DNA bakterii i wstawienie innej nici powstałej wskutek uszkodzenia lub przerwania DNA w końcowym efekcie prowadzi do unicestwienia komórki bakteryjnej [20].…”
Section: Charakterystyka Lewofloksacynyunclassified