Study of the Langat virus RNA-dependent RNA polymerase through homology modeling

Kalliopi Io Diakou, Thanasis Mitsis, Katerina Pierouli, Eleni Papakonstantinou, Vasileios Megalooikonomou, Aspasia Efthimiadou, Dimitrios Vlachakis


Langat virus is a member of the Flaviviridae family and a close relative of a group of important tick-borne viruses that cause human encephalitis. RNA-dependent RNA polymerase is a significant component of the replication mechanism of the Flaviviridae viral family. In the present work, a three-dimensional model of the Langat virus RNA-dependent RNA polymerase was designed through homology modeling. The experimentally determined structure of the RNA-dependent RNA polymerase of Dengue virus type II, another member of the same viral family, was employed as template for the homology modeling process. The resulting model underwent a series of optimisations and its quality was verified using the Verify3D algorithm. Important functional characteristics of the family of viral RNA-dependent RNA polymerases were identified in the generated model, thus affirming the potential for its use in the possible design of anti-viral agents for Langat virus.


viral protein; homology modeling; polymerase; langat virus

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