STEP (striatum-enriched phosphatase) is a neural-specific protein-tyrosine phosphatase, first isolated from the rat brain. The 537-amino acid predicted human protein as isolated from cDNA sequences is between 85 and 90% identical to the mouse and rat sequences. In rat neuronal cell cultures, glutamate-mediated activation of N-methyl-D-aspartate (NMDA) receptors leads to the rapid but transient phosphorylation of extracellular signal-related kinase-2 (ERK2). NMDA-mediated influx of calcium, activates the calcium-dependent phosphatase calcineurin and the resulting dephosphorylation and activation of STEP. STEP then inactivatea ERK2 through tyrosine dephosphorylation and blocks translocation of the kinase to the nucleus. STEP plays a significant role in regulating the ERK activation and downstream signaling in neurons.
| Target |
STEP/PTPN5 |
| Reactivity |
Human, Mouse |
| Host |
Rabbit |
| Clonality |
Polyclonal |
| Tested Applications |
WB, IHC |
| Recommended dilutions |
Optimal dilutions/concentrations should be determined by the end user. |
| Immunogen |
KLH-conjugated synthetic peptide between 168-198 amino acids from the N-terminal region of human STEP / PTPN5. |
| Purification |
Purified through a protein G column, eluted with high and low pH buffers and neutralized immediately, followed by dialysis against PBS. |
| Isotype |
IgG |
| Conjugation |
Unconjugated |
| Storage |
Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles. |
| Swiss Prot |
P54829
|
| NCBI Accession |
NP_001035059.1
NP_001265165.1
NP_001265167.1
NP_001265168.1
NP_008837.1
NP_116170.3
|
| Buffer |
PBS containing 0.09% sodium azide. |
| UNSPSC Code |
12352203 |
| Availability |
Shipped within 5-10 working days. |
| Note |
This product is for research use only. |