Protein tyrosine phosphatases, or PTPs, are type I transmembrane proteins, membrane associated proteins or proteins localized in nuclei. Examples of transmembrane PTPs are LAR, PTP alpha, PTP beta, PTP gamma, PTP delta, PTP epsilon, PTP zeta, PTP thet, PTP upsilon and PTPs. Transmembrane PTPsigma play diverse roles during development and in adult tissues. Immunodepletion studies have suggested LAR to be a regulator of insulin receptor phosphorylation. PTP alpha activity is increased twofold in response to phorbol ester stimulation, resulting in serine phosphorylation either directly or indirectly by members of the PKC family. Overexpression of v-H-Ras and Neu, but not Myc or Int2, in mammary tumors has been shown to induce PTPe expression. An alternative splicing event leads to a nervous tissue-specific chondroitin sulfate proteoglycan called phosphacan, which represents the amino terminal portion of PTP omega. PTP thet and PTP share a conserved amino terminal 160 amino acid MAM domain which facilitates homophilic binding. PTP upsilon localizes to points of cell contact and may be involved in regulating the assembly and disassembly of cadherin/catenin complexes in vivo. PTPsigma contains an extracellular region, a single transmembrane segment and two tandem intracytoplasmic catalytic domains, and thus represents a receptor-type PTP. PTPsigma may also be involved in the molecular control of adult nerve repair. Four alternatively spliced transcript variants, which encode distinct proteins, have been reported.

Protein tyrosine phosphatase PTPsigma; Protein tyrosine phosphatase receptor type S; Protein tyrosine phosphatase receptor type sigma; Ptprs; PTPRS_HUMAN; PTPSIGMA; R PTP sigma; R-PTP-S; R-PTP-sigma; Receptor-type tyrosine-protein phosphatase S; Receptor-type tyrosine-protein phosphatase sigma.

Rat,Human,Mouse

IHC,IF,ICC

IHC 1:100-500
IF 1:100-500
ICC 1:100-1:400

214kD

5802

Q13332

https://www.uniprot.org/uniprotkb/Q13332

Membrane; Single-pass type I membrane protein.

Detected in all tissues tested except for placenta and liver.

KLH conjugated synthetic peptide derived from human PTPRS

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

Preservative: 0.02% Proclin300, Constituents: 1% BSA, 0.01M PBS, pH7.4.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.