Structural insights into the nairovirus nucleoprotein endonuclease activity - Zan Li; Shan Du; Feng Gao; Yanshuang Xiao; Qilu Weng; Wenni Zhang; Pufei Chen; Wenbo Xu; Yuanzhi Wang; Quan Liu; Yan Wu; Litao Sun (Proceedings of the National Academy of Sciences, 2026)