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Human CCL24 / Eotaxin-2 / MPIF-2 Insect Cell Lysate (WB positive control)

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Human CCL24 Transfected / Overexpression Cell Lysate Product Information
Expressed Host:Baculovirus-Insect cells
Product Description:Baculovirus-Insect Cell lysate that Human CCL24 / Eotaxin-2 / MPIF-2 transfected / overexpressed for Western blot (WB) positive control. The whole cell lysate is provided in 1X Sample Buffer (1X modified RIPA buffer+1X SDS loading buffer).
Sequence information:A DNA sequence encoding the human CCL24 (O00175) (Met 1-Cys 119) was fused with a polyhistidine tag at the C-terminus.
Predicted N Terminal:Val 27
Molecule Mass:The secreted recombinant human CCL24 consists of 103 amino acids and predicts a molecular mass of 11.8 kDa. It migrates as an approximately 19 KDa band in SDS-PAGE under reducing conditions.
Human CCL24 Transfected / Overexpression Cell Lysate Usage Guide
Preparation Method:Cell lysate was prepared by homogenization 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.
Quality Control Testing:12.5% SDS-PAGE Stained with Coomassie Blue after protein purification.
Stability:Samples are stable for up to twelve months from date of receipt.
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. 3. Store the lyophilized cell lysate at 4℃. After re-dissolution, recommend to aliquot it into smaller quantities and store at -80℃.
Storage Buffer:1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Storage Instruction:Store at 4℃. After re-dissolution, aliquot and store at -80℃.
Application notes:Western blot (WB): Use at an assay dependent dilution.
Other Applications: Not tested.
Optimal dilutions/concentrations should be determined by the end user.
CCL24/Eotaxin-2/MPIF-2 Background

CCL24, also known as Eotaxin-2 and MPIF-2, belongs to the intercrine beta (chemokine CC) family. CCL24 gene belongs to the subfamily of small cytokine CC genes. Cytokines are a family of secreted proteins involved in immunoregulatory and inflammatory processes. The CC cytokines are proteins characterized by two adjacent cysteines. CCL24 displays chemotactic activity on resting T lymphocytes, a minimal activity on neutrophils, and is negative on monocytes and activated T lymphocytes. CCL24 is also a strong suppressor of colony formation by a multipotential hematopoietic progenitor cell line. CCL24 is chemotactic for resting T-lymphocytes, and eosinophils. It has lower chemotactic activity for neutrophils but none for monocytes and activated lymphocytes. It is a strong suppressor of colony formation by a multipotential hematopoietic progenitor cell line. Eotaxin-2 interacts with chemokine receptor CCR3 to induce chemotaxis in eosinophils. Elevated level of Eotaxin-2 has been seen in patients with aspirin-exacerbated respiratory disease.

Human CCL24/Eotaxin-2/MPIF-2 References
  • Manousou P, et al. (2010) Increased expression of chemokine receptor CCR3 and its ligands in ulcerative colitis: the role of colonic epithelial cells in in vitro studies. Clin Exp Immunol. 162 (2): 337-47.
  • Owczarek W, et al. (2010) Analysis of eotaxin 1/CCL11, eotaxin 2/CCL24 and eotaxin 3/CCL26 expression in lesional and non-lesional skin of patients with atopic dermatitis. Cytokine. 50 (2): 181-5.
  • Luesink M, et al. (2009) Chemokine induction by all-trans retinoic acid and arsenic trioxide in acute promyelocytic leukemia: triggering the differentiation syndrome. Blood. 114 (27): 5512-21.
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    Catalog: 10901-H08BL-300
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