Human DPP2 HEK293 Overexpression Lysate: Product Information
This Human DPP2 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of DPP2 protein (Cat: 10748-H08H) from the overexpression lysate was verified.
A DNA sequence encoding the human DPPII (NP_037511.2) (Met 1-Leu 492) with a C-terminal polyhistidine tag was expressed.
The secreted recombinant human DPPII comprises 482 amino acids with a predicted molecular mass of 53.6 kDa. As a result of glycosylation, rh DPPII migrates as an approximately 60 kDa band in SDS-PAGE under reducing conditions.
Human DPP2 HEK293 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 DPP2 HEK293 Overexpression Lysate: Alternative Names
Human DPP2 Overexpression Lysate; Human DPPII Overexpression Lysate; Human QPP Overexpression Lysate
DPP2 Background Information
DPP7 (dipeptidylpeptidase 7), also known as DPPII and DPP2, is a post-proline cleaving aminopeptidase expressed in quiescent lymphocytes. Dipeptidyl peptidases (DPPs) have post-proline dipeptidyl aminopeptidase activity, cleaving Xaa-Pro dipeptides from the N-termini of proteins. DPPs mediate regulatory activity of their substrates and have been linked to a variety of diseases including type 2 diabetes, obesity and cancer. DPPs can bind specific voltage-gated potassium channels and alter their expression and biophysical properties and may also influence T cells. DPP proteins include DPRP1, DPRP2, DPP3, DPP7, DPP1, DPPX and CD26. It localizes to lysosomes. DPP7 localizes to lysosomes and exists as a homodimer via its leucine zipper motif and is involved in the degradation of oligopeptides. In response to calcium release, it can be secreted in its active form. It is essential for lymphocyte survival, as the inhibition of DPP7 results in quiescent cell apoptosis.
Chiravuri M, et al. (1999) A novel apoptotic pathway in quiescent lymphocytes identified by inhibition of a post-proline cleaving aminodipeptidase: a candidate target protease, quiescent cell proline dipeptidase. J Immunol. 163(6):3092-9.
Fukasawa KM, et al. (2001) Cloning and functional expression of rat kidney dipeptidyl peptidase II. Biochem J. 353(Pt 2):283-90.
Fornas E, et al. (1992) Effect of cholesterol and its autooxidation derivatives on endocytosis and dipeptidyl peptidases of aortic endothelial cells. Histol Histopathol. 7(2):163-8.
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