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Cancer tissues showed moderate to strong cytoplasmic positivity. Additional membranous staining was observed in several cancers.
GENE INFORMATION
Gene name
FGD4 (HGNC Symbol)
Synonyms
CMT4H, frabin, FRABP, ZFYVE6
Description
FYVE, RhoGEF and PH domain containing 4 (HGNC Symbol)
Entrez gene summary
This gene encodes a protein that is involved in the regulation of the actin cytoskeleton and cell shape. This protein contains an actin filament-binding domain, which together with its Dbl homology domain and one of its pleckstrin homology domains, can form microspikes. This protein can activate MAPK8 independently of the actin filament-binding domain, and it is also involved in the activation of CDC42 via the exchange of bound GDP for free GTP. The activation of CDC42 also enables this protein to play a role in mediating the cellular invasion of Cryptosporidium parvum, an intracellular parasite that infects the gastrointestinal tract. Mutations in this gene can cause Charcot-Marie-Tooth disease type 4H (CMT4H), a disorder of the peripheral nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2015]
B7Z493 [Direct mapping] FYVE, RhoGEF and PH domain-containing protein 4; cDNA FLJ55905, highly similar to FYVE, RhoGEF and PH domain-containing protein 4
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Predicted intracellular proteins Protein evidence (Ezkurdia et al 2014)
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GO:0005089 [Rho guanyl-nucleotide exchange factor activity] GO:0015629 [actin cytoskeleton] GO:0035023 [regulation of Rho protein signal transduction] GO:0043547 [positive regulation of GTPase activity] GO:0046872 [metal ion binding]