pgIs22 [unc-70::N-TSmod]. oxIs95 [pdi-2p::unc-70 + myo-2p::GFP]. The tension sensor module control (N-TSMod) was inserted at the N-terminus of unc-70. N-TSmod consists of a donor (mTFP) and acceptor (Venus) fluorophore separated by a flexible linker made of 40 residues from the spider-silk flagelliform, but is placed at the N-terminus of UNC-70 where it is not sensitive to force. pgIs22 was a spontaneous insertion of pgEx157. Reference: Kelley M, et al. Elife. 2015 Mar 23;4.