Catalog # LM0461

Laminin β2/γ1 Subunits Antibody

Mouse Monoclonal

Application / Dilution

ELISA	1:2000
ICC	1:200
WB (Native)	1:1000

Size 100 μl

Species Reactivity Hu

MW 760 kDa

Isotype IgG2b

The human basal lamina contains Collagen Type IV, proteoglycans, and glycoproteins. Laminin is a high molecular weight (850 kDa) oligomer, consisting of three different chains laminin alpha (α), beta (β), and gamma (γ) joined by disulfide bonds. The structure of human laminins include two helical domains (I & II) at the COOH-terminal, a laminin IV domain, multiple EGF-like repeats, and a laminin globular domain (G), as well as an N-terminal domain VI. Domains IV and VI are the binding sites for collagen and heparan sulfate, respectively. Several isoforms have been identified for the genes of each chain including 5 alpha chains, 4 beta chains, and 3 gamma chains. Laminin β2 and γ1 are found in laminin 121, laminin 221, laminin 421, and laminin 521. The expression of the Laminin subunits is found in the basal lamina of tissues. Here, the protein interacts with other extracellular matrix components to mediate cell attachment, migration and organization during embryonic development.

References

Hall ZW. (1995) Science. 269(5222):362-3.
Aumailley M. (2013) Cell Adh Migr. 7(1):48-55.

Native western blot image of human laminin isoforms: laminin 521 (α5β2γ1), laminin 121 (α1β2γ1), laminin 221 (α2β2γ1), laminin 332 (α3β3γ2), laminin 511 (α5β1γ1), laminin 411 (α4β1γ1), as well as human A431, A549, and NCI-H2052 cells. The blot was probed with mouse monoclonal anti-Laminin β2/γ1 subunit (LM0461) at 1:1000.

Immunocytochemical labeling of laminin β2/γ1 subunits in aldehyde fixed and NP-40 permeabilized human MDA-MB-231 breast carcinoma cells. The cells were labeled with mouse monoclonal anti-Laminin β2/γ1 subunits (LM0461). The antibody was detected using goat anti-mouse DyLight® 594.

Clone (M046) was generated from a recombinant human laminin 521 protein that includes a heterotrimer of three subunits laminin α5, laminin β2, and laminin γ1 subunits.

*For more information, see UniProt Accession P11047

Mouse monoclonal antibody purified with protein G chromatography is supplied in 100 µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

Clone M046 detects native laminin isoforms that include both laminin β2 and γ1 subunits. In native immunoblots, the antibody detects laminin 521, laminin 221, and laminin 121, but does not detect lamin 332 and laminin 411. The antibody weakly detects laminin 511. This antibody can be used for immunocytochemical detection of laminin β2/γ1 subunits, and can also be used for detection of native laminin isoforms in immunoblots and ELISA.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: