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Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | ICC, IH(P), FUNC | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MAB1952Z |
| Brand Family | Chemicon® |
| Trade Name |
|
| Description | Anti-Integrin α3 Antibody, clone P1B5, azide free |
| Alternate Names |
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| Background Information | Integrins are a family of dimeric, transmembrane proteins that mediate cell-cell and extracellular matrix adhesion. Signals transduced by integrins play a role in many biological processes, including cell growth, differentiation, migration and apoptosis. The integrin family is composed of at least 15 alpha and 8 beta subunits that may form over twenty different alpha-beta non-covalently bound dimeric combinations on the cell surface. The alpha subunits all have some homology to each other, as do the beta subunits. Both of the subunits contribute to the binding of the ligand. Integrin alpha subunits contain seven weak sequence repeats in the N-terminal region, which may be important in ligand binding, and have been predicted to fold cooperatively into a single beta-propeller domain with seven beta-sheets. The alpha-3 subunit (CD49c) is highly concentrated in epithelial cells where it strongly adheres to Laminin-5 and Laminin-5 induced rapid adhesion can be blocked by antibodies against the alpha-3 integrin subunit. The alpha-3 subunit exists in two different splice variants, denoted as "A" and "B". The only difference that results from this differential splicing is a total change in the cytoplasmic domain, while the extracellular domain stays the same. Knock-out mice lacking this subunit show prenatal lethality and abnormalities in the kidneys. |
| Product Information | |
|---|---|
| Format | Purified |
| Control |
|
| Presentation | Protein A Purified mouse immunoglobulin in 20 mM sodium phosphate, 250 mM NaCl, pH. 7.6, with no preservatives. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-Integrin α3 Antibody, clone P1B5, azide free detects level of Integrin α3 & has been published & validated for use in IC, IH(P). |
| Key Applications |
|
| Application Notes | Suitable for use in attachment inhibition assays using fibroblasts, most epithelial cells, activated lymphocytes on laminin, collagen and fibronectin. Immunohistochemistry on human tonsil fresh frozen tissue paraffin embedded tissue; protease digestion required: Optimal working dilutions must be determined by end user. |
| Biological Information | |
|---|---|
| Clone | P1B5 |
| Concentration | Please refer to the Certificate of Analysis for the lot-specific concentration. |
| Host | Mouse |
| Specificity | Reacts with Human alpha3 integrin. |
| Isotype | IgG1 |
| Species Reactivity |
|
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Entrez Gene Summary | ITGA3 encodes the integrin alpha 3 chain. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. Alpha chain 3 undergoes post-translational cleavage in the extracellular domain to yield disulfide-linked light and heavy chains that join with beta 1 to form an integrin that interacts with many extracellular-matrix proteins. The alpha 3 beta 1 integrin is known variously as: very late (activation) antigen 3 (VLA-3), very common antigen 2 (VCA-2), extracellular matrix receptor 1 (ECMR1), and galactoprotein b3 (GAPB3). |
| Gene Symbol |
|
| Purification Method | Protein A Purfied |
| UniProt Number |
|
| UniProt Summary | FUNCTION: SwissProt: P26006 # Integrin alpha-3/beta-1 is a receptor for fibronectin, laminin, collagen, epiligrin, thrombospondin and CSPG4. Alpha- 3/beta-1 may mediate with LGALS3 the stimulation by CSPG4 of endothelial cells migration. SIZE: 1066 amino acids; 118698 Da SUBUNIT: Heterodimer of an alpha and a beta subunit. The alpha subunit is composed of an heavy and a light chain linked by a disulfide bond. Alpha-3 associates with beta-1. Interacts with HPS5. SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein. TISSUE SPECIFICITY: Isoform alpha-3A is widely expressed. Isoform alpha-3B is expressed in brain and heart. In brain, both isoforms are exclusively expressed on vascular smooth muscle cells, whereas in heart isoform alpha-3A is strongly expressed on vascular smooth muscle cells, isoform alpha-3B is detected only on endothelial vein cells. PTM: Isoform alpha-3A, but not isoform alpha-3B, is phosphorylated on serine residues. Phosphorylation increases after phorbol 12- myristate 13-acetate stimulation. SIMILARITY: SwissProt: P26006 ## Belongs to the integrin alpha chain family. & Contains 7 FG-GAP repeats. |
| Product Usage Statements | |
|---|---|
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Maintain at 2–8°C in undiluted aliquots for up to 6 months after date of receipt. During shipment, small volumes of product will occasionally become entrapped in the seal of the product vial. For products with volumes of 200μL or less, we recommend gently tapping the vial on a hard surface or briefly centrifuging the vial in a tabletop centrifuge to dislodge any liquid in the containers cap. |
| Packaging Information | |
|---|---|
| Material Size | 100 µg |