Caister Academic Press

DNA Topoisomerases of Kinetoplastid Parasites: Brief Overview and Recent Perspectives

Sourav Saha, Somenath R. Chowdhury and Hemanta K. Majumder
from: Molecular Biology of Kinetoplastid Parasites (Edited by: Hemanta K. Majumder). Caister Academic Press, U.K. (2018) Pages: 151-168.


Topoisomerases are group of enzymes that resolve DNA topological problems and aids different DNA transaction processes viz. replication, transcription, recombination etc. inside cells. These proteins accomplish their feats by steps of DNA strand(s) scission, strand passage or rotation and subsequent rejoining activities. Topoisomerases of kinetoplastid parasites have been extensively studied because of their unusual features. The unique presence of heterodimeric Type IB topoisomerase and prokaryotic 'TopA homologue' Type IA topoisomerase in kinetoplastids still generate immense interest among scientists. Moreover, because of their structural dissimilarity with the host enzymes, topoisomerases of kinetoplastid parasites are attractive targets for chemotherapeutic interventions to kill these deadly parasites. In this chapter, we summarize historical perspectives and recent advances in kinetoplastid topoisomerase research and how these proteins are exploited for drug targeting read more ...
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