Rat Interferon alpha 1/IFNA1 HEK293 Overexpression Lysate

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Rat Interferon alpha 1/IFNA1 HEK293 Overexpression Lysate: 产品信息

产品描述
This Rat Interferon alpha 1/IFNA1 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of Interferon alpha 1/IFNA1 protein (Cat: 80174-R02H) from the overexpression lysate was verified.
表达宿主
HEK293 Cells
种属
Rat
蛋白构建信息
A DNA sequence encoding the rat IFNA1 (P05011) (Met 1-Ser 192) was fused with the Fc region of human IgG1 at the C-terminus.
分子量
The recombinant rat IFNA1/Fc is a disulfide-linked homodimer. The reduced monomer comprises 410 amino acids and predicts a molecular mass of 46.4 kDa. The apparent molecular mass of the rat IFNA1/Fc monomer is approximately 50 kDa in SDS-PAGE under reducing conditions.

Rat Interferon alpha 1/IFNA1 HEK293 Overexpression Lysate: 使用指南

制备方法
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.
裂解缓冲液
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.
使用建议
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.
缓冲液
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
稳定性 & 储存条件
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.
应用
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Interferon alpha 1/IFNA1 背景信息

IFNA1, also known as IFN-alpha and IFNA, belongs to the alpha/beta interferon family. Interferons(IFNs) are proteins made and released by host cells in response to the presence of pathogens such as viruses, bacteria, parasites, or tumor cells. They belong to the large class of glycoproteins known as cytokines. IFNs stimulate the production of two enzymes: a protein kinase and an oligoadenylate synthetase. They allow for communication between cells to trigger the protective defenses of the immune system that eradicate pathogens or tumors. IFNs can activate immune cells, such as natural killer cells and macrophages; they increase recognition of infection or tumor cells by up-regulating antigen presentation to T lymphocytes, and they also increase the ability of uninfected host cells to resist new infection by the virus. Leukocyte interferon is produced predominantly by B lymphocytes. Immune interferon is produced by mitogen- or antigen-stimulated T lymphocytes. IFNA1 is produced by macrophages and has antiviral activities.
全称
interferon, alpha 1
参考文献
  • Takayama I, et al. (2012) The nucleocapsid protein of measles virus blocks host interferon response. Virology. 424(1):45-55.
  • Vairo D, et al. (2011) Severe impairment of IFN-? and IFN-? responses in cells of a patient with a novel STAT1 splicing mutation. Blood. 118(7):1806-17.
  • Bhattacharya S, et al. (2011) Bcr-abl signals to desensitize chronic myeloid leukemia cells to IFN? via accelerating the degradation of its receptor. Blood. 118(15):4179-87.
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