P. Burgstaller et M. Famulok, STRUCTURAL CHARACTERIZATION OF A FLAVIN-SPECIFIC RNA APTAMER BY CHEMICAL PROBING, Bioorganic & medicinal chemistry letters, 6(10), 1996, pp. 1157-1162
In a previous study, an RNA aptamer for the specific recognition of fl
avin cofactors was isolated from a combinatorial RNA-pool. We have now
carried out a structural analysis of this RNA by chemical probing and
identified residues protected from modification in the presence of th
e cofactor and modifications that interfere with its complexation. An
induced fit of the RNA motif occurs upon cofactor binding. Our analysi
s led to a refined secondary structure model for the FMN/RNA complex.
(C) 1996 Elsevier Science Ltd