- SynonymIntegrin alpha 4 beta 7,ITGA4&ITGB7
- SourceBiotinylated Human ITGA4&ITGB7 Heterodimer Protein, His,Avitag&Tag Free (IT7-H82W9) is expressed from human 293 cells (HEK293). It contains AA Tyr 34 - Thr 977 (ITGA4) & Glu 20 - His 723 (ITGB7) (Accession # P13612-1 (ITGA4) & P26010-1 (ITGB7)).Predicted N-terminus: Tyr 34 & Ser 592 (ITGA4) & Glu 20 (ITGB7)
- Molecular Characterization
Biotinylated Human ITGA4&ITGB7 Heterodimer Protein, His,Avitag&Tag Free, produced by co-expression of ITGA4 and ITGB7, has a calculated MW of 113.2 kDa (ITGA4) and 81.8 kDa (ITGB7). Subunit ITGA4 is fused with an acidic tail at the C-terminus and followed by a polyhistidine tag and an Avi tag (Avitag™) and subunit ITGB7 contains no tag but a basic tail at the C-terminus. The ITGA4 subunit is composed of a heavy chain (Tyr 34 - Arg 591, calculated MW 61.1 kDa) and a light chain (Ser 592 - Thr 977, calculated MW 52.1 kDa).
- BiotinylationBiotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
- Endotoxin
- Formulation
Please contact us for detailed information.
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.
- BackgroundIntegrin alpha 4 beta 7 is an integrin family adhesion receptor that shares subunits with alpha 4 beta 1 (VLA4) and the E-Cadherin receptor, alpha E beta 7 . Integrin alpha 4 beta 7, which is critical for homing to intestinal mucosa, is induced during T cell activation in Peyer’s patches or mesenteric lymph nodes.Its expression requires signals from local dendritic and stromal cells, including secreted retinoic acid. The HIV-1 envelope protein gp120 binds to the active form of Integrin alpha 4 beta 7, and this may or may not account for the concentration of HIV-1 virus in the gut-associated lymphoid tissue (GALT). Integrinalpha 4 beta 7 may also be involved in lymphocyte trafficking in acute intestinal graft vs. host disease (GVHD).
- References
- (1)Arthos Jet, et al., 2008, Nat Immunol., 9(3), 301-9.
- (2)Monteiro P, et al., 2011, J Immunol.l., 186(8), 4618-30.
- (3)Chen YB, et al., 2013, Bone Marrow Transplant., 48(4), 598-603.
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