Ardisson-Araújo Daniel M P, Melo Fernando L, Clem Rollie J, Wolff José L C, Ribeiro Bergmann M
Laboratory of Baculovirus, Cell Biology Department, University of Brasilia, Brasilia, DF, Brazil Division of Biology, Kansas State University, Manhattan, Kansas, USA.
Laboratory of Baculovirus, Cell Biology Department, University of Brasilia, Brasilia, DF, Brazil.
J Virol. 2015 Nov 4;90(3):1668-72. doi: 10.1128/JVI.02491-15. Print 2016 Feb 1.
The GP64 envelope fusion protein is a hallmark of group I alphabaculoviruses. However, the Diatraea saccharalis granulovirus genome sequence revealed the first betabaculovirus species harboring a gp64 homolog (disa118). In this work, we have shown that this homolog encodes a functional envelope fusion protein and could enable the infection and fusogenic abilities of a gp64-null prototype baculovirus. Therefore, GP64 may complement or may be in the process of replacing F protein activity in this virus lineage.
GP64包膜融合蛋白是I组杆状病毒的一个标志。然而,甘蔗条螟颗粒体病毒的基因组序列揭示了首个携带gp64同源物(disa118)的β-杆状病毒物种。在这项研究中,我们已经表明,这个同源物编码一种功能性包膜融合蛋白,并能够赋予一种缺乏gp64的杆状病毒原型感染和融合能力。因此,在这个病毒谱系中,GP64可能补充或可能正在取代F蛋白的活性。