G. Musco et al., THE SOLUTION STRUCTURE OF THE FIRST KH DOMAIN OF FMR1, THE PROTEIN RESPONSIBLE FOR THE FRAGILE-X-SYNDROME, Nature structural biology, 4(9), 1997, pp. 712-716
The structure and dynamics of the first KH domain of FMR1 - the protei
n responsible for fragile X syndrome - reveal that an exposed loop is
highly flexible despite containing a GxxG motif that is well conserved
throughout the KH family. We suggest that this region provides a puta
tive binding surface for RNA recognition.