... for the activity of many sRNAs [11,15], it hasbeen proposed to be an RNA chaperone. The interactionbetween Hfq and RNA may increase the propensity of RNA to interact with itself or other RNAs, ... of Hfq has an apparent molecular mass of 50 ± 10 kDa, while the unfolded state of Hfq has anaverage apparent molecular mass of 12 ± 5 kDa. Thisindicates that the unfolded state of Hfq was monomeric ... crescentus;Bruab,Brucella abortus;Brume,Brucella melitensis;Azoca,Azorhizobium caulinodans;Agrtm,Agrobacterium tumefaciens; Rhilo, Rhizobium loti. Thermotogales – Thema, Thermotoga maritima.Aquifi-cales...