CEP57(centrosomal protein 57),癌症关联基因,基因ID:9702,这个基因编码一种叫做translokin的细胞质蛋白。该蛋白定位于中心体,具有稳定微管的功能。该蛋白的n端半部分用于中心体定位和多聚,c端半部分用于成核、捆绑和锚定微管到中心体。该蛋白特异性地与成纤维细胞生长因子2(FGF2)相互作用,分选Nexin 6、RAN结合蛋白M和驱动蛋白KIF3A和KIF3B,从而介导FGF2的核易位和有丝分裂活性。它还与细胞周期蛋白d1相互作用,控制细胞周期蛋白d1在静止细胞中的核质分布。这种蛋白质对于维持细胞分裂过程中正确的染色体数目至关重要。该基因的突变引起了一种罕见的常染色体隐性遗传病——花叶病斑非整倍体综合征。已经鉴定出编码不同亚型的多个选择性剪接转录变体。[由RefSeq提供,2011年8月]This gene encodes a cytoplasmic protein called Translokin. This protein localizes to the centrosome and has a function in microtubular stabilization. The N-terminal half of this protein is required for its centrosome localization and for its multimerization, and the C-terminal half is required for nucleating, bundling and anchoring microtubules to the centrosomes. This protein specifically interacts with fibroblast growth factor 2 (FGF2), sorting nexin 6, Ran-binding protein M and the kinesins KIF3A and KIF3B, and thus mediates the nuclear translocation and mitogenic activity。