Human ANGPTL4 HEK293 Overexpression Lysate


Human ANGPTL4 HEK293 Overexpression Lysate: 製品の情報

This Human ANGPTL4 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of ANGPTL4 protein (Cat: 10563-H07H) from the overexpression lysate was verified.
HEK293 Cells
A DNA sequence encoding the human ANGPTL4 (Q9BY76) (Pro166-Ser406) was expressed with an N-terminal polyhistidine tag.
The recombinant human ANGPTL4 comprises 261 amino acids and has a predicted molecular mass of 29.5 kDa. The apparent molecular mass of the protein is approximately 35 kDa in SDS-PAGE under reducing conditions due to glycosylation.

Human ANGPTL4 HEK293 Overexpression Lysate: 用法

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.
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.
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).
安定性 & 保存条件
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.
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.

Human ANGPTL4 HEK293 Overexpression Lysate: 別名

Human ANGPTL2 Overexpression Lysate; Human ARP4 Overexpression Lysate; Human FIAF Overexpression Lysate; Human HARP Overexpression Lysate; Human HFARP Overexpression Lysate; Human NL2 Overexpression Lysate; Human PGAR Overexpression Lysate; Human pp1158 Overexpression Lysate; Human TGQTL Overexpression Lysate; Human UNQ171 Overexpression Lysate

ANGPTL4 背景情報

ANGPTL4, also known as ANGPTL2, is a protein with hypoxia-induced expression in endothelial cells. It contains 1 fibrinogen C-terminal domain and is expressed at high levels in the placenta, heart, liver, muscle, pancreas and lung but expressed poorly in the brain and kidney. ANGPTL4 inhibits proliferation, migration, and tubule formation of endothelial cells and reduces vascular leakage. It may act as a regulator of angiogenesis and modulate tumorigenesis. It inhibits proliferation, migration, and tubule formation of endothelial cells and reduces vascular leakage. It may also exert a protective function on endothelial cells through an endocrine action. ANGPTL4 is directly involved in regulating glucose homeostasis, lipid metabolism, and insulin sensitivity. In response to hypoxia, the unprocessed form of the protein accumulates in the subendothelial extracellular matrix (ECM). The matrix-associated and immobilized unprocessed form limits the formation of actin stress fibers and focal contacts in the adhering endothelial cells and inhibits their adhesion. It also decreases motility of endothelial cells and inhibits the sprouting and tube formation.
angiopoietin-like 4
  • Lichtenstein L, et al. (2010) Angptl4 Protects against Severe Proinflammatory Effects of Saturated Fat by Inhibiting Fatty Acid Uptake into Mesenteric Lymph Node Macrophages. Cell metabolism. 12(6): 580-92.
  • Terada S, et al. (2011) Escaping Anoikis through ROS: ANGPTL4 controls integrin signaling through Nox1. Cancer Cell. 19(3):297-9.
  • Zhu PC, et al. (2011) Angptl4 protein elevates the prosurvival intracellular O2(-):H2O2 ratio and confers anoikis resistance to tumors. Cancer Cell. 19(3):401-15.
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