Human VE-Cadherin HEK293 Overexpression Lysate: Product Information
This Human VE-Cadherin overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of VE-Cadherin protein (Cat: 10433-H03H) from the overexpression lysate was verified.
A DNA sequence encoding the extracellular domain of human CDH5 (NP_001786.2) (Met 1-Gln 593) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
The recombinant human CDH5/Fc is a disulfide-linked homodimeric protein. The reduced monomer consists of 815 amino acids after removal of the signal peptide and has a predicted molecular mass of 92 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh CDH5/Fc monomer is approximately 120 kDa due to glycosylation.
Human VE-Cadherin HEK293 Overexpression Lysate: Usage Guide
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.
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).
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.
Western Blot (WB) Optimal dilutions/concentrations should be determined by the end user.
Human VE-Cadherin HEK293 Overexpression Lysate: Alternative Names
Human 7B4 Overexpression Lysate; Human CD144 Overexpression Lysate
VE-Cadherin Background Information
Cadherins (Calcium dependent adhesion molecules) are a class of transmembrane proteins. Cadherin-5, also known as VE-cadherin, CDH5 and CD144, an endothelial specific cell-cell adhesion molecule, plays a pivotal role in the formation, maturation and remodeling of the vascular wall. VE-Cadherin is widely considered to be specific for vascular endothelia in which it is either the sole or the predominant cadherin, often co-existing with N-cadherin. This specificity of VE-cadherin for vascular endothelial cells is important not only in blood and lymph vessel biology and medicine, but also for cell-type-based diagnoses, notably those of metastatic tumors. As a classical cadherin, VE-Cadherin links endothelial cells together by homophilic interactions mediated by its extracellular part and associates intracellularly with the actin cytoskeleton via catenins. Mechanisms that regulate VE-cadherin-mediated adhesion are important for the control of vascular permeability and leukocyte extravasation. In addition to its adhesive functions, VE-Cadherin regulates various cellular processes such as cell proliferation and apoptosis and modulates vascular endothelial growth factor receptor functions. Consequently, VE-cadherin is essential during embryonic angiogenesis.
cadherin 5, type 2 (vascular endothelium)
Taveau JC, et al. (2008) Structure of artificial and natural VE-cadherin-based adherens junctions. Biochem Soc Trans. 36(Pt 2): 189-93.
Vestweber D. (2008) VE-cadherin: the major endothelial adhesion molecule controlling cellular junctions and blood vessel formation. Arterioscler Thromb Vasc Biol. 28(2): 223-32.
Gavard J. (2009) Breaking the VE-cadherin bonds. FEBS Lett. 583(1): 1-6.
Vestweber D, et al. (2009) Cell adhesion dynamics at endothelial junctions: VE-cadherin as a major player. Trends Cell Biol. 19(1): 8-15.
Boda-Heggemann J, et al. (2009) Beyond vessels: occurrence and regional clustering of vascular endothelial (VE-)cadherin-containing junctions in non-endothelial cells. Cell Tissue Res. 335(1): 49-65.
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