The Squash RNA aptamer structure manuscript was accpted by Nature Chemical Biology! 

The fluorescent aptamer Squash extensively repurposes the adenine riboswitch fold 

Lynda Truong, Hamed Kooshapur, Sourav Kumar Dey, Xing Li, Nico Tjandra, Samie R. Jaffrey & Adrian R. Ferré-D’Amaré*

https://www.nature.com/articles/s41589-021-00931-2

The other related paper: 

Repurposing an adenine riboswitch into a fluorogenic imaging and sensing tag

https://www.nature.com/articles/s41589-021-00925-0