Thermo Fisher Scientific PTPRA Polyclonal Antibody

Applications

Product Specifications

Product Specific Information

Antibody detects endogenous levels of total PTP alpha.

Target Information

Phosphorylation of receptors by protein kinases is a process that can be reversed by a group of enzymes called protein phosphatases. Coordinated control of kinases and phosphatases provides the cell with the capacity to rapidly switch between phosphorylated and dephosphorylated protein states in dynamic response to environmental stimuli. Activation of critical enzymes by kinase phosphorylation alone is not enough to provide adequate regulation—it is the combination with phosphatase dephosphorylation that effectively creates on/off switches to control cellular events. Errors in control, either through kinases or their counterpart phosphatases, can lead to unchecked cell growth attributable to human cancers and developmental disorders.

Potential mechanisms to control dephosphorylation include:

• Changes in the expression of protein phosphatases
• Subcellular localization
• Phosphorylation of phosphatase catalytic and regulatory subunits
• Regulation by endogenous phosphatase inhibitors

Most protein phosphatases are not stringently specific for their substrates. Consequently, changes in phosphatase activity may have a broad impact on dephosphorylation and turnover of phosphoproteins that are substrates for different kinases. This may be an important point of control to connect cellular circuitry of interrelated signaling pathways and to synchronize physiological responses.

For Research Use Only.
Not for use in diagnostic procedures.
Not for resale without express authorization.