- SynonymIntegrin alpha V beta 5,ITGAV&ITGB5
- SourceBiotinylated Human ITGAV&ITGB5 Heterodimer Protein, His,Avitag&Tag Free (IT5-H82Wa) is expressed from human 293 cells (HEK293). It contains AA Phe 31 - Val 992 (ITGAV) & Gly 24 - Asn 719 (ITGB5) (Accession # P06756-1 (ITGAV) & P18084-1 (ITGB5)).Predicted N-terminus: Phe 31 (ITGAV) & Gly 24 (ITGB5)Request for sequence
- Molecular Characterization
Biotinylated Human ITGAV&ITGB5 Heterodimer Protein, His,Avitag&Tag Free, produced by co-expression of ITGAV and ITGB5, has a calculated MW of 114.7 kDa (ITGAV) and 81.9 kDa (ITGB5). Subunit ITGAV isfused with an acidic tail at the C-terminus and followed by a polyhistidine tag and an Avi tag (Avitag™) and subunit ITGB5 contains no tag but a basic tail at the C-terminus. The non-reducing (NR) protein migrates as 140-150 kDa (ITGAV) and 90-98 kDa (ITGB5) respectively due to glycosylation.
- BiotinylationBiotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
- Biotin:Protein RatioThe biotin to protein ratio is 0.5-1 as determined by the HABA assay.
- EndotoxinLess than 1.0 EU per μg by the LAL method.
- Purity
>95% as determined by SDS-PAGE.
- Formulation
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
Contact us for customized product form or formulation.
- Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
- Storage
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Biotinylated Human ITGAV&ITGB5 Heterodimer Protein, His,Avitag&Tag Free on SDS-PAGE under non-reducing (NR) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
Immobilized Human Vitronectin at 5 μg/mL (100 μL/well) can bind Biotinylated Human ITGAV&ITGB5 Heterodimer Protein, His,Avitag&Tag Free (Cat. No. IT5-H82Wa) with a linear range of 0.01-0.156 μg/mL (QC tested).
Immobilized Human Fibronectin at 5 μg/mL (100 μL/well) can bind Biotinylated Human ITGAV&ITGB5 Heterodimer Protein, His,Avitag&Tag Free (Cat. No. IT5-H82Wa) with a linear range of 0.156-5 μg/mL (Routinely tested).
- BackgroundIntegrin alpha V beta 5 (ITGAV & ITGB5) is expressed on a wide variety of cell types including keratinocytes, fibroblasts, adhesive monocytes, embryonic stem cells, and select endothelium and epithelium. ITGAV & ITGB5 binds ligands containing an RGD motif, notably vitronectin. Growth factors that increase PKC activity, such as VEGF or TGF alpha, promote ITGAV & ITGB5-mediated angiogenesis while alpha V beta 3, which may be expressed in the same cell, responds to FGF-basic and TNFalpha. An inhibitor of both down regulates tumor angiogenesis. During lung inflammation, up regulation of ITGAV & ITGB5 on myofibroblasts or infiltrating lymphocytes may contribute to fibrosis by freeing TGFbeta from latency.
- References
- (1)Suzuki, S. et al., 1990,Proc. Natl. Acad. Sci. USA 87:5354-8.
- (2)Memmo, L.M. and P. McKeown-Longo, 1998, J. Cell Sci.111:425-33.
- (3)Desgrosellier, J.S. and D.A. Cheresh, 2010, Nat. Rev. Cancer 10:9-22.
- (4)Luzina, I.G. et al., 2009, Arthritis Rheum. 60:1530-9.
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