Knockout Tested Rabbit Recombinant Monoclonal Integrin alpha 4/CD49D antibody - conjugated to Alexa Fluor® 647. Suitable for Flow Cyt and reacts with Human samples.
IgG
Rabbit
Alexa Fluor® 647
Ex: 650nm, Em: 665nm
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
Liquid
Monoclonal
Flow Cyt | |
---|---|
Human | Tested |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/5000 | Notes - |
Integrins alpha-4/beta-1 (VLA-4) and alpha-4/beta-7 are receptors for fibronectin. They recognize one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. They are also receptors for VCAM1. Integrin alpha-4/beta-1 recognizes the sequence Q-I-D-S in VCAM1. Integrin alpha-4/beta-7 is also a receptor for MADCAM1. It recognizes the sequence L-D-T in MADCAM1. On activated endothelial cells integrin VLA-4 triggers homotypic aggregation for most VLA-4-positive leukocyte cell lines. It may also participate in cytolytic T-cell interactions with target cells. ITGA4:ITGB1 binds to fractalkine (CX3CL1) and may act as its coreceptor in CX3CR1-dependent fractalkine signaling (PubMed:23125415). ITGA4:ITGB1 binds to PLA2G2A via a site (site 2) which is distinct from the classical ligand-binding site (site 1) and this induces integrin conformational changes and enhanced ligand binding to site 1 (PubMed:18635536, PubMed:25398877). Integrin ITGA4:ITGB1 represses PRKCA-mediated L-type voltage-gated channel Ca(2+) influx and ROCK-mediated calcium sensitivity in vascular smooth muscle cells via its interaction with SVEP1, thereby inhibiting vasocontraction (PubMed:35802072).
CD49D, CD49D, ITGA4, Integrin alpha-4, CD49 antigen-like family member D, Integrin alpha-IV, VLA-4 subunit alpha
Knockout Tested Rabbit Recombinant Monoclonal Integrin alpha 4/CD49D antibody - conjugated to Alexa Fluor® 647. Suitable for Flow Cyt and reacts with Human samples.
IgG
Rabbit
Alexa Fluor® 647
Ex: 650nm, Em: 665nm
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
Liquid
Monoclonal
EPR26133-5
Affinity purification Protein A
Blue Ice
1-2 weeks
+4°C
-20°C
Upon delivery aliquot
Avoid freeze / thaw cycle, Store in the dark
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
This supplementary information is collated from multiple sources and compiled automatically.
Integrin alpha 4 also known as CD49D or ITGA4 is a transmembrane receptor with a mass of approximately 150 kDa. This protein is expressed on the surface of leukocytes including T and B lymphocytes monocytes and eosinophils. Integrin alpha 4 functions by interacting mechanically with the extracellular matrix components and endothelial cell counter-receptors like VCAM-1 facilitating cell adhesion and migration. Its expression is vital for the immune cells' ability to move and locate sites of inflammation or injury.
Integrin alpha 4 forms a heterodimer complex with beta subunits like beta 1 (forming VLA-4) or beta 7 allowing it to mediate adhesion and signaling pathways. In particular the alpha 4 and beta 1 dimerization gives rise to a high-affinity receptor for fibronectin and VCAM-1. This interaction is essential for regulating immune responses and maintaining cell positioning within tissues. The presence of this complex on leukocytes drives their ability to navigate through the vasculature to inflamed areas.
Integrin alpha 4 participates in significant signal transduction pathways including the MAPK and PI3K-Akt pathways. These pathways modulate cell survival proliferation and migration. In the MAPK pathway integrin alpha 4 influences cell signaling cascades by interacting with other proteins like TALIN or PAXILLIN which are important for integrin-mediated signal relay. In connection with PI3K-Akt pathway alpha 4 integrins work closely with proteins in regulating cellular adhesion and motility showing a dynamic interplay in immune regulation.
Integrin alpha 4 plays an important role in various immune-related diseases such as multiple sclerosis and Crohn's disease. The protein's participation in leukocyte adhesion and trafficking makes it a target for therapeutic intervention. Natalizumab a monoclonal antibody against alpha 4 integrin showcases the critical link between the protein and disease treatment by blocking leukocyte migration to reduce inflammation. Additionally integrin alpha 4's interaction with proteins like VCAM-1 and VLA-4 highlights its relevance in these autoimmune conditions highlighting its importance in disease pathophysiology.
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We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
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Flow cytometric analysis of ITGA4 KO HAP1 (human ITGA4 knock out human chronic myelogenous leukemia near-haploid cell, Left)/Parental HAP1(Right) cells labelling Integrin alpha 4/CD49D with ab316939 at 1/5000 dilution (0.01 ug)/Red compared with a Rabbit IgG monoclonal [EPR25A] - Isotype Control (Alexa Fluor® 647) (Alexa Fluor® 647 Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab199093) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue).
Gated on viable cell.
Flow cytometric analysis of human PBMC (human peripheral blood mononuclear cell) cells labelling Integrin alpha 4/CD49D with ab316939 at 1/500 dilution (0.1 ug)/Right compared with a Rabbit IgG monoclonal [EPR25A] - Isotype Control (Alexa Fluor® 647) (Alexa Fluor® 647 Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab199093) / Left isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue).
human PBMC are co-stained with CD3 conjugated Alexa Fluor®488.
Gated on viable cell.
Flow cytometric analysis of K-562 (human chronic myelogenous leukemia lymphoblast, Left)/Jurkat (human T cell leukemia T lymphocyte from peripheral blood, Right) cells labelling Integrin alpha 4/CD49D with ab316939 at 1/500 dilution (0.1 ug)/Red compared with a Rabbit IgG monoclonal [EPR25A] - Isotype Control (Alexa Fluor® 647) (Alexa Fluor® 647 Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab199093) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue).
Gated on viable cell.
Negative control: K-562 (PMID:16105875).
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