Month: April 2010

Near and dear to our heart, Mre11, has been chosen as the May 2010 [featured molecule](http://dx.doi.org/10.3942/psi_sgkb/fm_2010_5) by the Protein Structure Initiative. Additionally, the blurb on the PSI website features a beautiful rendering of the *Pyrococcus furiosus* and *Thermotoga maritima* Mre11 nucleases created by [David Goodsell](http://mgl.scripps.edu/people/goodsell/).

UC Berkeley researchers, James Berger and Nathan Thomsen, used the SIBYLS beamline to solve the structure of a hexameric helicase, the Rho transcription termination factor (from E. coli), bound to both ATP mimics and an RNA substrate. The results showed that Rho functions like a rotary engine: as the motor spins, it pulls RNA strands…
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