PTPRU基因编码的功能和结构描述
该基因编码的蛋白是蛋白酪氨酸磷酸酶（PTP）家族的一员众所周知，PTPs是调节细胞生长、分化、有丝分裂周期和癌基因转化等多种细胞过程的信号分子该ptp具有胞外区、单个跨膜区和两个串联的胞内催化区，因此代表一种受体型ptp。细胞外区域包含一个meprin-a5抗原ptp（mam）结构域、ig样和纤维粘连蛋白iii样重复序列。这种ptp被认为在细胞识别和粘附中起作用。对小鼠类似基因的研究表明，ptp在早期神经发育中的作用。据报道，该基因在Jurkat T淋巴瘤细胞中的表达受肉豆蔻酸佛波酯（PMA）或钙离子载体的调控另一种剪接的转录变体已被报道。
The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP possesses an extracellular region, a single transmembrane region, and two tandem intracellular catalytic domains, and thus represents a receptor-type PTP. The extracellular region contains a meprin-A5 antigen-PTP (MAM) domain, Ig-like and fibronectin type III-like repeats. This PTP was thought to play roles in cell-cell recognition and adhesion. Studies of the similar gene in mice suggested the role of this PTP in early neural development. The expression of this gene was reported to be regulated by phorbol myristate acetate (PMA) or calcium ionophore in Jurkat T lymphoma cells. Alternatively spliced transcript variants have been reported.
