Very beautiful work!

As far as I'm aware there aren't any structures of DksA bound to an RNAP elongation complex. Have you thought about how this interaction would impact your model of ppGpp-binding and RNAP swiveling? Would DksA prevent swiveling given its binding location, or the structural states be in competition? Would be curious to see impact of DksA in vitro as well as what your in vivo results would look like in a ∆dksA background