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Laminin Antibody

Novus Biologicals, part of Bio-Techne | Catalog # NB300-144

Novus Biologicals, part of Bio-Techne
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NB300-144
NB300-144SS

Key Product Details

Validated by

Biological Validation

Species Reactivity

Validated:

Human, Mouse, Rat, Chinese Hamster, Invertebrate, Mammal, Rabbit, Sheep

Cited:

Human, Mouse, Rat, Porcine, Avian - Chicken, Hamster - Cricetulus (Chinese Hamster), Invertebrate, Mammal, Ovine, Primate, Rabbit

Applications

Validated:

Flow Cytometry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry Free-Floating, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Western Blot

Cited:

Block/Neutralize, Flow Cytometry, IF/IHC, Immunocytochemistry, Immunocytochemistry/ Immunofluorescence, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Knockout Validated, Western Blot

Label

Unconjugated

Antibody Source

Polyclonal Rabbit IgG

Concentration

1 mg/ml

Product Specifications

Immunogen

Laminin Antibody was made to Laminin 111 isolated from mouse Engelbreth-Holm-Swarm (EHS) sarcoma cells. [UniProt# P19137]

Reactivity Notes

Rabbit, Fruit Bat, Chinese Hamster, and S. mansoni reactivity reported in scientific literature (PMID: 18214989, 31877588, 29251349, and 28114363 respectively). Human, Mouse, Rat, and Sheep reported in multiple pieces of scientific literature.

Localization

Secreted, Basement membrane, Extracellular matrix

Specificity

Laminin Antibody is pan-specific and reacts well with all Laminin isoforms tested: Laminin-1 (alpha-1, beta-1, and gamma-1) and Laminin-2 (alpha-2, beta-1, and gamma-1).

Marker

Basement Membrane Marker

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Theoretical MW

337 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Scientific Data Images for Laminin Antibody

Staining of Laminin in Free Floating Rat Brain

Staining of Laminin in Free Floating Rat Brain

Immunohistological analysis of brain stem section stained with rabbit polyclonal Laminin Antibody [NB300-144], dilution 1:1,000 in red, and costained with chicken pAb to Myelin Basic Protein (MBP), dilution 1:5,000 in green. The blue is DAPI staining of nuclear DNA. Following transcardial perfusion of rat with 4% paraformaldehyde, brain was post fixed for 24 hours, cut to 45 uM, and free-floating sections were stained with the above antibodies. The laminin antibody is an excellent marker of basement membranes surrounding blood vessels, while the MBP antibody stains the myelin sheathes around axons.
Fluorescent Staining of Basement Membranes in Mouse Tissue Using Laminin Antibody

Fluorescent Staining of Basement Membranes in Mouse Tissue Using Laminin Antibody

MxIF analysis of mouse submandibular salivary gland morphogenesis. MxIF of a developmental TMA including embryonic stages (E14, E16, E18) and postnatal stages (P5 and P20) was performed using sequential application of directly conjugated antibodies to detect multiple markers of tissue structures and cell types on the same tissue sections. Tissue compartments. The epithelium, mesenchyme, neurons, and basement membranes was detected using antibodies directed towards E-cadherin (ECAD, red), platelet-derived growth factor (PDGFR, green), beta III tubulin (bIII, magenta), and Laminin Antibody [NB300-144] (LMN, cyan), respectively. Image collected and cropped by CiteAb from the following publication (https://bio.biologists.org/cgi/doi/10.1242/bio.20134309), licensed under a CC-BY license.
Strong Staining of Laminin in Basement Membranes of Blood Vessels in Free Floating Mouse Tissue

Strong Staining of Laminin in Basement Membranes of Blood Vessels in Free Floating Mouse Tissue

Staining of mouse section of cortex stained with Laminin Antibody [NB300-144] (red). Blue is DAPI staining of DNA. This antibody reveals strong staining in the basement membranes of blood vessels.

Applications for Laminin Antibody

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:50-1:200

Immunohistochemistry

1:500-1:2000

Immunohistochemistry Free-Floating

1:1000-1:5000

Immunohistochemistry-Frozen

1:500-1:2000

Immunohistochemistry-Paraffin

1:500-1:2000

Western Blot

1:100-1:5000
Application Notes
This Laminin antibody detects bands at around 440, 220, and 158 kDa in Western Blot. Use in flow cytometry (PMID: 31819166) reported in scientific literature. Use in ICC/IF, IHC, IHC-Frozen, IHC-Paraffin, and Western Blot reported in multiple pieces of scientific literature. Immunostaining is enhanced by antigen retrieval with pepsin, especially paraffin tissue. br/>
The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 9 reviews rated 4.6 using NB300-144 in the following applications:

Formulation, Preparation, and Storage

Purification

IgG purified

Formulation

50% PBS, 50% glycerol

Preservative

0.035% Sodium Azide

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Aliquot and store at -20C or -80C. Avoid freeze-thaw cycles.

Background: Laminin

Laminin, the most abundant structural and biologically active component in basement membranes, is a complex extracellular glycoprotein with high molecular weight (900 kDa). Laminin is composed of a laminin alpha (400 kDa), beta (215 kDa) and gamma chain (205 kDa), whose multidomain proteins are encoded by distinct genes (LAMA, LAMB, LAMC respectively) and have several isoforms of each chain. The biological functions of the different chains and trimer molecules are largely unknown, but some of the chains have been shown to differ with respect to their tissue distribution, reflecting diverse functions in vivo. Laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components.

Laminins are an important and biologically active part of the basal lamina, influencing cell adhesion, differentiation, migration, signaling, neurite outgrowth and metastasis, where anti-laminin antibodies can be widely used to label blood vessels and basement membranes (1). Significant quantities of laminin are found in basement membranes, the thin extracellular matrices that surround epithelial tissue, nerve, fat cells and smooth, striated and cardiac muscle. Excessive serum laminin levels have been associated with fibrosis, cirrhosis and hepatitis, serious and frequent complications of chronic active liver disease characterized by excessive deposition of various normal components of connective tissue in liver (2). Epithelial mesenchymal transition (EMT) biomarkers include fibronectin, laminin, N-cadherin, and Slug (3).

References

1. Yang, M. Y., Chiao, M. T., Lee, H. T., Chen, C. M., Yang, Y. C., Shen, C. C., & Ma, H. I. (2015). An innovative three-dimensional gelatin foam culture system for improved study of glioblastoma stem cell behavior. J Biomed Mater Res B Appl Biomater, 103(3), 618-628. doi:10.1002/jbm.b.33214

2. Mak, K. M., & Mei, R. (2017). Basement Membrane Type IV Collagen and Laminin: An Overview of Their Biology and Value as Fibrosis Biomarkers of Liver Disease. Anat Rec (Hoboken), 300(8), 1371-1390. doi:10.1002/ar.23567

3. Choi, S., Yu, J., Park, A., Dubon, M. J., Do, J., Kim, Y., . . . Park, K. S. (2019). BMP-4 enhances epithelial mesenchymal transition and cancer stem cell properties of breast cancer cells via Notch signaling. Sci Rep, 9(1), 11724. doi:10.1038/s41598-019-48190-5

Alternate Names

LAMA, Laminin A chain, laminin subunit alpha-1, laminin, alpha 1, Laminin-1 subunit alpha, Laminin-3 subunit alpha, PTBHS, S-LAM alpha, S-laminin subunit alpha

Entrez Gene IDs

284217 (Human); 16772 (Mouse); 316758 (Rat)

Gene Symbol

LAMA1

UniProt

Additional Laminin Products

Product Documents for Laminin Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Product Specific Notices for Laminin Antibody

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.

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