Recombinant Human VCAM-1/CD106 His-tag Protein, CF

Catalog # Availability Size / Price Qty
10201-VC-100
Recombinant Human VCAM-1/CD106 His-tag Protein, CF Bioactivity
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Recombinant Human VCAM-1/CD106 His-tag Protein, CF Summary

Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured by the ability of the immobilized protein to support the adhesion of U937 human histiocytic lymphoma cells. The ED50 for this effect is 0.5-3 μg/mL.
Source
Chinese Hamster Ovary cell line, CHO-derived human VCAM-1/CD106 protein
Phe25-Glu698, with a C-terminal 6-His tag
Accession #
N-terminal Sequence
Analysis
Phe25
Predicted Molecular Mass
75 kDa
SDS-PAGE
80-110 kDa, under reducing conditions

Product Datasheets

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10201-VC

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 500 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 2 weeks, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Data Images

Bioactivity Bioactivity View Larger

Recombinant Human VCAM-1/CD106 His-tag (Catalog # 10201-VC) supports the adhesion of U937 human histiocytic lymphoma cells. The ED50 for this effect is 0.5-3 μg/mL.

SDS-PAGE SDS-PAGE View Larger

2 μg/lane of Recombinant Human VCAM-1/CD106 His-tag (Catalog # 10201-VC) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at 80-110 kDa.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: VCAM-1/CD106

VCAM-1, also known as CD106, is an immunoglobulin (Ig)-like adhesion molecule that is mainly expressed in endothelial cells and other cell types including macrophages, dendritic cells, neurons, smooth muscle cells, fibroblasts, and oocytes (1, 2). It plays a critical role in inflammation by recruiting leukocytes to acute and chronic inflammation sites (3, 4). Alternatively-spliced forms are known to occur, but the most common form is a type I transmembrane protein with a 674 aa extracellular domain (ECD) that includes seven C2-type immunoglobulin domains, a 22 aa transmembrane segment, and a 19 amino acid (aa) cytoplasmic tail. Within the ECD, human VCAM-1 shares 75% and 76% aa sequence identity with the mouse and rat VCAM-1, respectively. VCAM-1 binds to leukocyte integrins alpha 4 beta 1 (VLA-4) and alpha 4 beta 7. During the inflammatory adhesion mechanism, activated integrins halt rolling leukocytes and attach them firmly to the vascular endothelium. The VCAM-1:VLA-4/ alpha 4 beta 7 interaction is also thought to be involved in the extravasation of white blood cells through the blood vessel wall to sites of inflammation (5). ELISA techniques have shown that detectable levels of soluble VCAM-1 are present in the biological fluids of apparently normal individuals, but elevated levels of serum VCAM-1 are indicative of future Atrial Fibrillation incident as well as liver disease (6, 7). Tumor cells use overexpression of VCAM-1 as means of escaping immune surveillance (8).

References
  1. Vonderheide, R.H. et al. (1994) J. Cell Biol. 125:215.
  2. Cybulsky, M.I. et al. (1991) Proc. Natl. Acad. Sci. USA 88:7859.
  3. Luster, A.D. et al. (2005) Nat. Immunol. 6:1182.
  4. Osborn, L. et al. (1989) Cell 59:1203
  5. Langer. H.F. et al. 2009. J Cell Mol Med. 13:1211.
  6. Willeit.K. et al. 2017. JAMA Cardiol. 2:516.
  7. Lo Iacono.O. et al. 2008. Liver Int. 28:1129.
  8. Wu.T.C. et al. 2007. Cancer Research. 67:6003
Long Name
Vascular Cell Adhesion Molecule 1
Entrez Gene IDs
7412 (Human); 22329 (Mouse)
Alternate Names
CD106 antigen; CD106; DKFZp779G2333; INCAM-100; L1CAM; MGC99561; vascular cell adhesion molecule 1; vascular cell adhesion protein 1; V-CAM 1; VCAM1; VCAM-1

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