FNTA (Farnesyltransferase, CAAX box; alphaCAAX farnesyltransferase alpha subunit, FPTA, FTase-alpha, GGTase-I-alpha, Protein farnesyl transferase/ geranyl geranyl transferase type I alpha subunit(PGGT1A), Ras proteins prenyl transferase alpha, Type I protein geranyl-geranyl transferase alpha subunit) is located locus 8p11 (human). Prenylation is a common intracellular posttranslational protein modification catalyzed by prenyltransferases. The best characterized among these prenyltransferases is the CAAX farnesyl transferase (2. 5. 1. 21), which is alpha-beta heterodimeric enzyme. It catalyzes the attachment of a farnesyl group from farnesyl phosphate to cysteine residues at the fourth position from the C terminus of proteins that end in the CAAX box. FNTA or the alpha subunit of farnesyl transferase is shared by the geranyl-geranyl protein transferases. Apart from transfer of farnesyl and geranyl groups to proteins, FNTA has been proposed to regulate intracellular signaling pathways involving p21ras. Reports have shown that FNTA interacts with TGF-beta and activin-type I receptors.
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Protein Aliases: CAAX farnesyltransferase subunit alpha; farnesyl-protein transferase alpha-subunit; Farnesyltransferase, subunit alpha; FTase-alpha; GGTase-I-alpha; Protein farnesyltransferase/geranylgeranyltransferase type-1 subunit alpha; protein prenyltransferase alpha subunit repeat containing 2; Ras proteins prenyltransferase subunit alpha; type I protein geranyl-geranyltransferase alpha subunit; Type I protein geranyl-geranyltransferase subunit alpha
Gene Aliases: FNTA; FPTA; FTA; PFAS; PGGT1A; PTAR2