FNIP2 and cancer: Additionally, frameshift mutations that would cause premature stop codons in both FNIP1 and FNIP2 have been reported in gastric and colorectal malignancies, supporting a role for FNIP1 and FNIP2 in the development of these cancers (Mo et al., 2019), however further studies are required to clarify the roles of FLCN interacting partners in tumorigenesis.