Purity ~85% (SDS-PAGE). PTPN4 also known as Protein tyrosine phosphatase, non-receptor type 4, 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. PTPN4 is a widely expressed non-receptor protein tyrosine phosphatase. It has been shown to interact with glutamate receptor delta 2 and epsilon, and may affect glutamate receptors signaling and/or in regulation of their activities through tyrosine dephosphorylation. Source: Recombinant protein corresponding to aa655-913 from human PTPN4, fused to His-tag at N-terminus, expressed in E.coli. Molecular Weight: ~32kD (280aa) Applications: Suitable for use in SDS-PAGE.