Human SIRP alpha HEK293 Overexpression Lysate

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Human SIRP alpha HEK293 Overexpression Lysate: 产品信息

产品描述
This Human SIRP alpha overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of SIRP alpha protein (Cat: 11612-H08H) from the overexpression lysate was verified.
表达宿主
HEK293 Cells
种属
Human
蛋白构建信息
A DNA sequence encoding the human SIRPA (NP_542970.1, with natural variant Gly 75 Ala) extracellular domain (Met1-Arg370) was expressed fused with a polyhistidine tag at the C-terminus.
分子量
The recombinant human SIRPA consists of 351 amino acids and predictes a molecular mass of 39 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of human SIRPA is approximately 45-55 kDa due to glycosylation.

Human SIRP alpha 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.

Human SIRP alpha HEK293 Overexpression Lysate: 别称

Human BIT Overexpression Lysate; Human CD172A Overexpression Lysate; Human MFR Overexpression Lysate; Human MYD-1 Overexpression Lysate; Human P84 Overexpression Lysate; Human PTPNS1 Overexpression Lysate; Human SHPS1 Overexpression Lysate; Human SIRP Overexpression Lysate; Human SIRP alpha Overexpression Lysate

SIRP alpha 背景信息

Tyrosine-protein phosphatase non-receptor type substrate 1, also known as SHP substrate 1, Inhibitory receptor SHPS-1, Brain Ig-like molecule with tyrosine-based activation motifs, Macrophage fusion receptor, CD172 antigen-like family member A, SIRPA and CD172a, is a single-pass type I membrane protein which contains two Ig-like C1-type (immunoglobulin-like) domains and one Ig-like V-type (immunoglobulin-like) domain. SIRPA is ubiquitously expressed. It is highly expressed in brain and detected at lower levels in heart, placenta, lung, testis, ovary, colon, liver, small intestine, prostate, spleen, kidney, skeletal muscle and pancreas. It is also detected on myeloid cells, but not T-cells. SIRPA is an immunoglobulin-like cell surface receptor for CD47. SIRPA acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. SIRPA supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. It may play a key role in intracellular signaling during synaptogenesis and in synaptic function. SIRPA is involved in the negative regulation of receptor tyrosine kinase-coupled cellular responses induced by cell adhesion, growth factors or insulin. It mediates negative regulation of phagocytosis, mast cell activation and dendritic cell activation.
全称
signal-regulatory protein alpha
研究领域
参考文献
  • Timms JF. et al., 1999, Curr Biol. 9: 927-30.
  • Stofega MR. et al., 2000, J Biol Chem. 275: 28222-9.
  • Liu T. et al., 2005, J Proteome Res. 4: 2070-80.
  • Wolf-Yadlin A. et al., 2007, Proc Natl Acad Sci. 104: 5860-5.
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