Ducker Charles E, Stettler Erin M, French Kevin J, Upson John J, Smith Charles D
Department of Pharmacology, H078, Penn State College of Medicine, 500 University Drive Hershey, PA 17033, USA.
Oncogene. 2004 Dec 9;23(57):9230-7. doi: 10.1038/sj.onc.1208171.
Protein palmitoyltransferases (PATs) represent an exciting new target for anticancer drug design due to their pivotal roles in the subcellular localization of a number of oncogenes. We show that the Huntingtin interacting protein 14 (HIP14) is a PAT with a preference for the farnesyl-dependent palmitoylation motif found in H- and N-RAS. Characterization of HIP14 in mouse cells has revealed that it has the ability to induce colony formation in cell culture, anchorage-independent growth, and tumors in mice. Activity of the enzyme and its ability to transform cells is dependent on critical residues in the active site of the enzyme.
蛋白质棕榈酰转移酶(PATs)因其在多种癌基因亚细胞定位中的关键作用,成为抗癌药物设计中一个令人兴奋的新靶点。我们发现亨廷顿相互作用蛋白14(HIP14)是一种PAT,它更倾向于对在H - 和N - RAS中发现的法尼基化依赖性棕榈酰化基序进行修饰。对小鼠细胞中HIP14的特性研究表明,它能够在细胞培养中诱导集落形成、非锚定依赖性生长以及在小鼠体内形成肿瘤。该酶的活性及其转化细胞的能力取决于酶活性位点中的关键残基。