Detailed Information on Publication Record
2013
Physicochemical analysis of rotavirus segment 11 supports a ‘modified panhandle’ structure and not the predicted alternative tRNA-like structure (TRLS)
BISWAS, Subhajit, Wilson LI, Emily MANKTELOW, Jonathan LEVER, Laura E. EASTON et. al.Basic information
Original name
Physicochemical analysis of rotavirus segment 11 supports a ‘modified panhandle’ structure and not the predicted alternative tRNA-like structure (TRLS)
Authors
BISWAS, Subhajit, Wilson LI, Emily MANKTELOW, Jonathan LEVER, Laura E. EASTON, Peter LUKAVSKY, Ulrich DESSELBERGER and Andrew M LEVER
Edition
ARCHIVES OF VIROLOGY, Vídeň, SPRINGER WIEN, 2013, 0304-8608
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
Genetics and molecular biology
Country of publisher
Austria
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 2.282
Organization unit
Central European Institute of Technology
UT WoS
000330960200006
Keywords in English
rotavirus; tRNA-like structure; RNA 11
Tags
International impact, Reviewed
Změněno: 10/12/2013 14:07, Olga Křížová
Abstract
V originále
Rotaviruses are a major cause of acute gastroenteritis, which is often fatal in infants. The viral genome consists of 11 double-stranded RNA segments, but little is known about their cis-acting sequences and structural elements. Covariation studies and phylogenetic analysis exploring the potential structure of RNA11 of rotaviruses suggested that, besides the previously predicted ‘‘modified panhandle’’ structure, the 5’ and 3’ termini of one of the isoforms of the bovine rotavirus UKtc strain may interact to form a tRNA-like structure (TRLS). Such TRLSs have been identified in RNAs of plant viruses, where they are important for enhancing replication and packaging. However, using tRNA mimicry assays (in vitro aminoacylation and 3’- adenylation), we found no biochemical evidence for tRNA-like functions of RNA11. Capping, synthetic 3’ adenylation and manipulation of divalent cation concentrations did not change this finding. NMR studies on a 5’- and 3’-deletion construct of RNA11 containing the putative intra-strand complementary sequences supported a predominant panhandle structure and did not conform to a cloverleaf fold despite the strong evidence for a predicted structure in this conserved region of the viral RNA. Additional viral or cellular factors may be needed to stabilise it into a form with tRNA-like properties