Ross Caroline, Knox Caroline, Tastan Bishop Özlem
Research Unit in Bioinformatics (RUBi), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, South Africa.
FEBS Lett. 2017 Jun;591(12):1687-1701. doi: 10.1002/1873-3468.12663. Epub 2017 May 22.
Enteroviruses are responsible for a multitude of human diseases. Expansion of the virus capsid is associated with a cascade of conformational changes that allow the subsequent release of RNA. For the first time, this study presents a comprehensive bioinformatic screen for the prediction of interacting motifs within intraprotomer interfaces and across respective interfaces surrounding the fivefold and twofold axes. The results identify a network of conserved motif residues involved in interactions in enteroviruses that may be critical to capsid stabilisation, providing guidelines towards developing antivirals that interfere with viral expansion during RNA release.
肠道病毒引发多种人类疾病。病毒衣壳的扩张与一系列构象变化相关联,这些变化使得随后的RNA得以释放。本研究首次进行了全面的生物信息学筛选,以预测原聚体内界面以及围绕五重轴和二重轴的各个界面之间相互作用的基序。结果确定了肠道病毒中参与相互作用的保守基序残基网络,这可能对衣壳稳定至关重要,为开发在RNA释放过程中干扰病毒扩张的抗病毒药物提供了指导方针。