Human PTPN12 Baculovirus-Insect cells Overexpression Lysate: Product Information
This Human PTPN12 overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of PTPN12 protein (Cat: 11556-H20B) from the overexpression lysate was verified.
A DNA sequence encoding the human PTPN12 (AAA36529.1) (Met1-Gln355) was expressed with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
The recombinant human PTPN12 chimera consists of 592 amino acids and has a calculated molecular mass of 69.4 kDa. The recombinant protein migrates approximately 64 kDa band in SDS-PAGE under reducing conditions.
Human PTPN12 Baculovirus-Insect cells Overexpression Lysate: Usage Guide
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
1. Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube.
2. Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human PTPN12 Baculovirus-Insect cells Overexpression Lysate: Alternative Names
Human PTP-PEST Overexpression Lysate; Human PTPG1 Overexpression Lysate
PTPN12 Background Information
PTPN12 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. PTPN12 contains a C-terminal PEST motif, which serves as a protein–protein interaction domain, and may be related to protein intracellular half-life. PTPN12 was found to bind and dephosphorylate the product of oncogene c-ABL, thus may play a role in oncogenesis. PTPN12 was shown to interact with, and dephosphorylate, various of cytoskeleton and cell adhesion molecules, such as p13 (Cas), CAKbeta/PTK2B, PSTPIP1, and paxillin, which suggested its regulatory roles in controlling cell shape and mobilit.
protein tyrosine phosphatase, non-receptor type 12
Garton AJ. et al., 1997, Oncogene. 15 (8): 877-85.
Lin Yi. et al., 2003, Am J Physiol Heart Circ. 285 (2): H710-21.
Takekawa M. et al., 1994, FEBS Lett. 339 (3): 222-8.
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