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(A) hfq− transformed bacteria expressing the Hfq-MT protein induced with 0.001% ARA) and grown without gold salts. A diffused, non-particulated electron-density is observed. (B) Bacterium expressing MT alone (without fused Hfq) treated with gold salts. Arrows point to small electron-dense particles while the arrowhead points to one of the biggest gold clusters. Bars 50 nm.
