Human Integrin alpha 6 beta 1 Heterodimer Antibody

Catalog #: MAB7809 Datasheet / COA / SDS

Recombinant Monoclonal Antibody

Catalog #	Availability	Size / Price	Qty
MAB7809-100
MAB7809-SP

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Detection of Integrin alpha 6 beta 1 in Human PBMC by Flow Cytometry

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Human Integrin alpha 6 beta 1 Heterodimer Antibody Summary

Species Reactivity

Human

Specificity

Detects human Integrin alpha 6 beta 1 in direct ELISAs. In direct ELISA, less than 1% of cross reactivity with recombinant human (rh) Integrin beta 1 and recombinant mouse (rm) Integrin alpha 6 is observed. In direct ELISA, no cross-reactivity with rhIntegrin alpha 3, beta 2, beta 3, beta 5, beta 6, beta 7, and rmIntegrin beta 1 is observed.

Source

Recombinant Monoclonal Rabbit IgG Clone # 2548B

Purification

Protein A or G purified from hybridoma culture supernatant

Immunogen

Chinese Hamster Ovary cell line, CHO-derived Human Integrin alpha 6 beta 1 heterodimer
Phe24-Ser1012(Integrin alpha 6) and Gln21-Asp728 (Integrin beta1)
Accession # NP_000201

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Flow Cytometry

0.25 µg/10⁶ cells

See below

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Flow Cytometry

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Detection of Integrin alpha 6 beta 1 in Human PBMC by Flow Cytometry Human PBMC were stained with (A) Rabbit Anti-Human Integrin a6 beta 1 Monoclonal Antibody (Catalog # MAB7809) or (B) Rabbit IgG control antibody (Catalog # MAB1050) followed by PE-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # F0110) and Mouse anti-Human CD3 APC-conjugated Monoclonal Antibody (Catalog # FAB100A). View our protocol for Staining Membrane-associated Proteins.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Integrin alpha 6 beta 1

Integrin alpha 6 beta 1, also called platelet glycoprotein GPIc-IIa, is a laminin binding integrin that is expressed on T cells, monocytes, endothelial cells, stem cells, and platelets (1-9). The non-covalent heterodimer is composed of ~150 kDa alpha 6/CD49f and 130 kDa beta 1/CD29 type I transmembrane glycoprotein subunits (2). While alpha 6 pairs only with beta 1 or beta 4, twelve integrins share the beta 1 subunit (1-5). The alpha 6 subunit is cleaved into extracellular heavy and transmembrane light chains (3). Alternative splicing in the human alpha 6 extracellular domain (ECD) at amino acid (aa) 216 creates X1 (ubiquitous), X2 and X1X2 isoforms, while splicing at a mouse or human cytoplasmic site creates A and B isoforms (10, 11). These forms do not appear to alter the binding specificity (4, 10, 11). The beta 1 ECD contains a vWFA domain, which participates in binding. Each subunit then has a transmembrane sequence and a short cytoplasmic tail. The dimer is folded when it is least active. Divalent cations and intracellular (inside-out) signaling convert it to its most active, extended and open conformation (1, 2). The human alpha 6 (X1) heavy chain shares 94‑95% aa identity with mouse, rat, bovine, and canine alpha 6, and the human beta 1 ECD shares 92‑96% aa sequence identity with rat, bovine, mouse, and feline beta 1. alpha 6 beta 1 shows broad specificity for adhesion to laminin isoforms (4, 10). Its expression on human and mouse pluripotent stem cells is important for attachment, expansion, and self‑renewal on LN‑511 (laminin alpha ₅ beta ₁ gamma ₁) (6, 7). The secreted protein Netrin-4 and the laminin gamma ₁ subunit form an adhesion‑activating complex with alpha 6 beta 1 on mouse neural stem cells and human lymphatic endothelial cells that promotes lymphangiogenesis (8, 9). alpha 6 beta 1 up‑regulation on cancers such as prostate, glioma, and hepatoma is reported to enhance tumorigenicity, motility, invasion and metastasis (12‑14). alpha 6 beta 1 cleavage via uPA (urokinase-type plasminogen activator) facilitates tumorigenicity in prostate cancers, and interaction of hepatoma alpha 6 beta 1 with EMMPRIN/CD147 may also enhance tumorigenicity by inducing uPA and other metalloproteinases (12, 13).

References