FNTA（farnesyltransferase， CAAX box， alpha），癌症关联基因，基因ID：2339，Prenyl转移酶可通过C-末端Caax盒将硫醚连接的法尼酰基或香叶基与蛋白质的半胱氨酸残基结合。caax-geranylgeranyltransferase和caax-farnesyltransfer是具有相同α亚基但具有不同β亚基的异二聚体。这个基因编码这些转移酶的α亚单位。选择性剪接导致多个转录变体相关假基因已在11号和13号染色体上鉴定。[由RefSeq提供，2010年5月]Prenyltransferases can attach either a farnesyl group or a geranylgeranyl group in thioether linkage to the cysteine residue of proteins with a C-terminal CAAX box. CAAX geranylgeranyltransferase and CAAX farnesyltransferase are heterodimers that share the same alpha subunit but have different beta subunits. This gene encodes the alpha subunit of these transferases. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 11 and 13. [provided by RefSeq， May 2010]。