Human S100A2 HEK293 Overexpression Lysate

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Human S100A2 HEK293 Overexpression Lysate: Product Information

Product Description
This Human S100A2 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of S100A2 protein (Cat: 10180-H01H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Species
Human
Sequence Information
A DNA sequence encoding the human S100A2 (NP_005969.1) (Met 2-Pro98) was expressed with the fused Fc region of human IgG1 at the N-terminus.
Molecule Mass
The recombinant human Fc/S100A2 is a disulfide-linked homodimer. The reduced monomer consists of 334 amino acids and has a predicted molecular mass of 37.6 kDa. As a result of glycosylation, the apparent molecular mass of rh Fc/S100A2 monomer is approximately 40 kDa in SDS-PAGE under reducing conditions.

Human S100A2 HEK293 Overexpression Lysate: Usage Guide

Preparation Method
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.
Lysis Buffer
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Recommend Usage
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.
Sample Buffer
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.
Application
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human S100A2 HEK293 Overexpression Lysate: Alternative Names

Human CAN19 Overexpression Lysate; Human S100L Overexpression Lysate

S100A2 Background Information

The calcium-binding Protein S1A2 is a member of the S1 family of proteins containing 2 EF-hand calcium-binding motifs. S1 family genes are located as a cluster on chromosome 1q21, and S1 proteins consisting of at least 2 members are involved in the regulation of a number of cellular processes such as cell-cycle progression and cell differentiation. S1A2 was first detected in lung and kidney, and is mainly expressed in a subset of tissues and cells such as breast epithelia and liver. The S1A2 protein is a homodimer that undergoes a conformational change upon binding of calcium, and the active form functions in regulating cell proliferation and differentiation, gene transcription, and p53-dependent growth arrest and apoptosis. Accordingly, this protein is regarded as a putative tumor suppressor, and thus chromosomal rearrangements and reduced expression of S1A2 gene have been implicated in certain carcinomas.
Full Name
S100 calcium binding protein A2
References
  • Gimona, M. et al., 1997, J. Cell. Sci. 110: 611-621.
  • Mueller, A. et al., 2005, J. Biol. Chem. 280: 29186-29193.
  • Lapi, E. et al., 2006, Oncogene. 25: 3628-3637.
  • Feng, G. et al., 2001, Cancer. Res. 61: 7999-8004.
  • Gupta, S. et al., 2003, J. Clin. Oncol. 21: 106-112.
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