Unraveling the Structure of the Variola Topoisomerase IB-DNA Complex: A Possible New Twist on Smallpox Therapy

Table 1.

Topoisomerases Encoded by Nucleocytoplasmic Large Viruses

Family Representative Viruses Topisomerases encoded by virus Comments References
Poxviridae Variola (smallpox) and Vaccinia viruses Type IB Attacks mammalian (including human) cells (23)
Phycodnaviridae Chlorella virus Type II Attacks green algae (28)
Asfarviridae African swine fever virus Type II Attacks mammalian cells (29)
Iridoviridae Chilo iridescent virus Type II Attacks insect larvae (30)
Mimiviridae Acanthamoeba polyphaga mimivirus (APMV) Type IA, IB, and II Largest known virus in terms of capsid diameter and genome size Attacks Acanthamoeba (22)

This Article

  1. MI October 2006 vol. 6 no. 5 245-248