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Investigating the structural changes due to adenosine methylation of the Kaposi's sarcoma-associated herpes virus ORF50 transcript.

Published version
Peer-reviewed

Type

Article

Change log

Abstract

Kaposi's sarcoma-associated herpes virus (KSHV) is a human oncovirus. KSHV relies on manipulating the host cell N6-methyl adenosine (m6A) RNA modification pathway to enhance virus replication. Methylation within a RNA stem loop of the open reading frame 50 (ORF50) increases transcript stability via the recruitment of the m6A reader, SND1. In this contribution we explore the energy landscapes of the unmethylated and methylated RNA stem loops of ORF50 to investigate the effect of methylation on the structure of the stem loop. We observe a significant shift upon methylation between an open and closed configuration of the top of the stem loop. In the unmethylated stem loop the closed configuration is much lower in energy, and, as a result, exhibits higher occupancy.

Description

Funder: Cambridge Philosophical Society


Funder: Universite de Paris

Keywords

Adenosine, Cell Line, Endonucleases, Gene Expression Regulation, Viral, Herpesvirus 8, Human, Humans, Methylation, Open Reading Frames, RNA, Sarcoma, Kaposi

Journal Title

PLoS Comput Biol

Conference Name

Journal ISSN

1553-734X
1553-7358

Volume Title

18

Publisher

Public Library of Science (PLoS)
Sponsorship
Biotechnology and Biological Sciences Research Council (BB/V006363/1, BB/T00021X/1)
Medical Research Foundation (MR/R010145/1)
Medical Research Council (MR/R010145/1)