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Sheep Anti-Human VCAM-1
Antigen Affinity Purified
(Vascular Cell Adhesion Molecule 1, CD106, INCAM-100, VLA4)
Polyclonal Antibody
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Prod. No.:V154
Host:Sheep
Pkg. Size:100 µg, 1 mg
Storage:-20°C to -70°C Detailed storage instructions below.
Description
Specificity:
Sheep Anti-Human Vascular Cell Adhesion Molecule 1 (VCAM-1) recognizes Human VCAM-1. This antigen affinity purified polyclonal antibody was purified using a proprietary chromatographic technique that includes covalently immobilizing the antigen proteins or peptides to agarose based beads. This purification method enhances specificity, reduces nonspecific binding of extraneous IgG and provides you with the most reliable reagent available for your early discovery research.

Background:
Vascular cell adhesion molecule 1, also known as VCAM1 is an immunoglobulin-like adhesion molecule expressed on activated endothelial cells.1 This type I membrane protein mediates leukocyte-endothelial cell adhesion and signal transduction, and may play a role in the development of artherosclerosis and rheumatoid arthritis. VCAM-1 promotes the adhesion of lymphocytes, monocytes, eosinophils, and basophils.

Immunogen
CHO Cell-Derived Recombinant Human VCAM-1 Extracellular Domain
Formulation
This antigen affinity purified polyclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 containing 5.0% w/v trehalose with no calcium, magnesium, or preservatives present.
Reconstitution
We suggest aseptically reconstituting this lyophilized, antigen affinity purified polyclonal antibody with 1 ml of sterile 1X PBS pH 7.2-7.3. This will result in a final antibody concentration of 0.1 mg/ml.
Endotoxin
<0.1 EU/µg as determined by the LAL method
Storage and Stability
The lyophilized antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for twelve months from date of receipt. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. No detectable loss of activity was observed after six months.
Reported Applications
Indirect ELISA, WB, B
Indirect ELISA: This antibody can be used in an indirect detection ELISA at 0.5 - 1.0 µg/ml. The detection sensitivity of this indirect ELISA for Human VCAM-1 is approximately 0.3 ng/well.
Western Blotting: To detect Human VCAM-1 this polyclonal antibody can be used at a concentration of 0.1 - 0.2 µg/ml. This polyclonal antibody should be used in conjunction with compatible second-step reagents. The detection limit for Human VCAM-1 is 5 ng/lane under either reducing or non-reducing conditions. The sensitivity of detection may increase up to 50 fold when a chemiluminescent substrate is used.
Blocking: This antibody shows inhibition in the U937 adhesion assay. The adhesion of human U937 cells (5 x 104 cells/well) to 10 μg/ml immobilized rhVCAM-1/Fc (100 μl/well) was maximally inhibited (80 - 100%) following pre-treatment with antibody for 1 hour using 100 μl of a 25 μg/ml antibody solution per well.
Each investigator should determine their own optimal working dilution for specific applications.


Country of Origin
USA
References
1. Yuqing Huo et al. (2001) J Clin Invest 107: 1209
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Products are for research use only. Not for use in diagnostic or therapeutic procedures.
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