Integrin alpha 4/CD49d Antibody (HP2/1) [Allophycocyanin/Cy7]

• Reactivity: Hu
• Applications: Flow, IHC, IP
• Clone: HP2/1
• Clonality: Monoclonal
• Host: Mouse
• Conjugate: Allophycocyanin/Cy7

Integrin alpha 4/CD49d Antibody (HP2/1) [Allophycocyanin/Cy7] Summary

• Description: This conjugate is made on demand and is not held in inventory. Each order represents a unique lot. All conjugates are generated using validated conjugation protocols and meet strict degree of labeling (F/P) specifications; additional information is available upon request. The antibody concentration is provided on the individual product label.
  
  For specialized conjugation needs, like large quantities, specific concentrations, and defined F/P ratios, bulk and custom antibody conjugation services are available.
• Additional Information: Clone HP2/1 was used by HLDA to establish CD designation.
• Immunogen: JM leukaemia line
• Specificity: Mouse anti Human CD49d monoclonal antibody, clone HP2/1 recognizes human CD49d also known as integrin alpha-4 or VLA-4 subunit alpha. CD49d is a ~150kDa single pass type 1 transmembrane glycoprotein with seven FG-GAP repeats, characteristic of alpha integrins, in its extracellular domain. CD49d can be proteolytically cleaved to yield framents of 80 and 70kDa (Hemler et al. 1987). CD49d associates with either CD29 to form VLA-4 or with Integrin beta-7 to form The Peyer patches-specific homing receptor LPAM-1, involved in the lymphocyte migration and homing to gut-associated lymphoid tissue (Sackstein 2006) through its interaction with MadCam-1, preferentially expressed on Peyer's patch high endothelial venules and postcapillary venules in lamina propria (Briskin et al. 1997). Mouse anti human CD49d, clone HP2/1 binds to both intact and the 80kDa fragment of integrin alpha-4. CD49d is expressed on monocytes, T cells, B cells, thymocytes and Langerhans cells (de Graaf et al. 1995). Mouse anti Human CD49d, clone HP2/1 can be used in basic studies of VLA-4 mediated adhesion and its interaction with the VCAM-1 structure and has been demonstrated to inhibit cell binding to soluble VCAM-1 (Weller et al. 1991).
• Isotype: IgG1
• Clonality: Monoclonal
• Host: Mouse
• Gene: ITGA4
• Purity: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • Flow Cytometry
  • Immunohistochemistry
  • Immunohistochemistry-Frozen
  • Immunoprecipitation
• Application Notes: Optimal dilution of this antibody should be experimentally determined. For optimal results using our Tandem dyes, please avoid prolonged exposure to light or extreme temperature fluctuations. These can lead to irreversible degradation or decoupling. When staining intracellular targets, specific attention to the fixation and permeabilization steps in your flow protocol may be required. Please contact our technical support team at technical@novusbio.com if you have any questions. This conjugated antibody is not kept in inventory and is made to order using validated conjugation protocols.

Reactivity Notes

Predicted cross-reactivities: Rhesus Monkey, Mustelid, Rat, Rabbit, Porcine, Llama, Mink, Equine, Goat, Feline, Cynomolgus monkey, Bovine

Packaging, Storage & Formulations

• Storage: Store at 4C in the dark. Do not freeze.
• Buffer: PBS
• Preservative: 0.05% Sodium Azide
• Purity: Protein A or G purified

Notes

Cy is a registered trademark of Global Life Sciences Solutions Germany GmbH.

Alternate Names for Integrin alpha 4/CD49d Antibody (HP2/1) [Allophycocyanin/Cy7]

• 269C wild type
• CD49 antigen-like family member D
• CD49d antigen
• CD49d
• CD49Dantigen CD49D, alpha-4 subunit of VLA-4 receptor
• IA4
• Integrin alpha 4
• integrin alpha-4 subunit
• integrin alpha-4
• Integrin alpha-IV
• integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor)
• ITGA4
• MGC90518
• very late activation protein 4 receptor, alpha 4 subunit
• VLA-4 subunit alpha
• VLA-4

Background

VLA-4 is a cell surface heterodimer in the integrin superfamily of adhesion receptors. Anti-VLA-4 antibodies inhibited cytolytic T cell activity, with inhibitory activity directed against the effector T cells rather than their targets. Thus, whereas other VLA receptors appear to mediate cell--matrix interactions, VLA-4 may have a cell--cell adhesion function. Alpha 4 stands apart from all other known integrin alpha subunit sequences because (i) alpha 4 has neither an inserted I-domain, nor a disulfide-linked C-terminal fragment, (ii) its sequence is the most unique and (iii) only alpha 4 has a potential protease cleavage site, near the middle of the coding region, which appears responsible for the characteristic 80,000 and 70,000 Mr fragments of alpha 4 (1). Unlike any other integrin alpha subunit, the intact (150 kDa) alpha 4 subunit of VLA-4 can sometimes be cleaved into two noncovalently associated fragments (80 and 70 kDa) (2). The VLA-4 integrins are indispensable for embryogenesis, haematopoiesis and immune responses, possibly because alpha4 regulates cellular functions differently from other integrins through its cytoplasmic tail (3).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: ITGA4