27.10.2013 Views

Structure of the SAM-II riboswitch bound to S-adenosylmethionine

Structure of the SAM-II riboswitch bound to S-adenosylmethionine

Structure of the SAM-II riboswitch bound to S-adenosylmethionine

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Supplementary Figure 3 Electron density maps around <strong>the</strong> <strong>SAM</strong> binding site<br />

pro<strong>to</strong>mer A <strong>of</strong> <strong>the</strong> <strong>SAM</strong>-<strong>II</strong> <strong>riboswitch</strong> con<strong>to</strong>ured at 1σ (orange cage). The final<br />

model is superimposed upon <strong>the</strong> density (green, RNA; magenta, <strong>SAM</strong>). (a) Solvent<br />

flattened experimental electron density map. (b) Final 2Fo-Fc electron density map.<br />

(c, next page) Final 2Fo-Fc electron density map in wall-eyed stereo. Image is<br />

centered on <strong>the</strong> P1-P2b junction and shows <strong>the</strong> location <strong>of</strong> a cesium a<strong>to</strong>m (purple)<br />

<strong>bound</strong> <strong>to</strong> an engineered phasing module in <strong>the</strong> RNA.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!