Structure of FLCN added to Interpro and PDB databases Posted on 5 Nov 20125 Nov 2012 by Myrovlytis Trust The structure of Folliculin has been added to the Interpro and PDB databases. This structure was solved by Nookala et al., 2012, who showed that Folliculin possessed a C-terminal DENN-like fold, that had GEF activity towards the small GTPase, Rab35.