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Description

Maackia amurensis Lectin (MAA/MAL I) is a leukoagglutinating lectin isolated from Maackia amurensis seeds and purified by affinity chromatography. MAA I can be used to detect N-linked glycans containing the trisaccharide Siaα2-3Galß1-4GlcNAc. This lectin does not agglutinate one blood type more than another and agglutination can be inhibited by sialyllactose or lactose at higher concentrations. Although MAA I and MAA II are similar in size and structure, this lectin is a more potent mitogen and exhibits less hemagglutinating ability than MAA II.

This lectin is used in a plethora of research. It has been exhibited that MAA inhibits oral squamous cell carcinoma growth and motility by decreasing activity of the JAK-STAT, TGFβ-SMAD, and Wnt-βCTN signaling pathways. MAA has been used to study Turkey adenovirus 3 activity, leaving evidence that the virus has attachment receptors that are both α2,3-linked and α2,6-linked sialic acids. As a sialic acid binding lectin, MAA has been used to observe content of sialic acid in seminoma testicular tissue, revealing that sialic acids may have roles in seminoma development by promoting invasiveness, as well as cross-talk between cancer-cells and the surrounding stroma and vessels. In novel SARS-CoV-2 research, it has been shown that MAA targets the ACE2 receptor, thus decreasing glycosylation and expression. As a result, the spike protein binding is suppressed, and inflammatory mediators have decreased expression.

Biotin is a small molecule involved in a wide range of metabolic processes. This ligand forms a complex with Avidin and Streptavidin, resulting in the strongest non-covalent protein-ligand interaction known. Biotinylated Maackia amurensis Lectin (MAA/MAL I) has an appropriate amount of biotin bound to provide optimum detection characteristics when using an Avidin-HRP or Streptavidin-HRP conjugate. Biotinylated lectins allow for more sensitive detection in ELISA and Western-blotting applications.

bioWORLD's products are supplied for LABORATORY RESEARCH USE ONLY. The product may not be used as a drug, agricultural or pesticidal product, food additive or as a household chemical

Storage Instruction: To prevent degradation and avoid repeated freeze-thaw cycles, aliquot your product into small, single-use volumes and store them at -20°C

Application

Blotting, Glycobiology, Immunocytochemistry, Immunohistochemistry, Immunofluorescence, Mitogenic Stimulation

References

Hamilton, K. L., Sheehan, S. A., Retzbach, E. P., Timmerman, C. A., Gianneschi, G. B., Tempera, P. J., Balachandran, P., & Goldberg, G. S. (2021). Effects of Maackia amurensis seed lectin (MASL) on oral squamous cell carcinoma (OSCC) gene expression and transcriptional signaling pathways. Journal of cancer research and clinical oncology, 147(2), 445–457. https://doi.org/10.1007/s00432-020-03456-8

Mahsoub, H. M., Yuan, L., & Pierson, F. W. (2020). Turkey adenovirus 3, a siadenovirus, uses sialic acid on N-linked glycoproteins as a cellular receptor. The Journal of general virology, 101(7), 760–771. https://doi.org/10.1099/jgv.0.001429

Marini, M., Tani, A., Manetti, M., & Sgambati, E. (2020). Characterization and distribution of sialic acids in human testicular seminoma. Acta histochemica, 122(3), 151532. https://doi.org/10.1016/j.acthis.2020.151532

Sheehan, S. A., Hamilton, K. L., Retzbach, E. P., Balachandran, P., Krishnan, H., Leone, P., Lopez-Gonzalez, M., Suryavanshi, S., Kumar, P., Russo, R., & Goldberg, G. S. (2021). Evidence that Maackia amurensis seed lectin (MASL) exerts pleiotropic actions on oral squamous cells with potential to inhibit SARS-CoV-2 infection and COVID-19 disease progression. Experimental cell research, 403(1), 112594. https://doi.org/10.1016/j.yexcr.2021.112594

Properties

Shelf life

2 years

Storage Temperature

-20°C

ECCN #

EAR99

Purity

High Purity Grade

Appearance color

Off-white to brown

Appearance form

Liquid

Molecular Weight

130 kDa

Solubility (@ RT)

Soluble in PBS

Abbreviation (Lectins Only):

MAA/MAL I

Source

Amur Maackia Seeds

Blood Group Specificity

Lymphocytes

Carbohydrate Specificity

Sialic Acid, Lactose

Storage Buffer

20 mM Tris-HCl pH 7.5, 50 mM NaCl, 1 mM CaCl2, 0.5 mM MnCl2, 5% Glycerol, 0.1% D-Trehalose Dihydrate, 0.01% Sodium Azide

Conjugate/Tag/Matrix

Biotin

Inhibitory Carbohydrate

Neu5Ac?2-3Gal?1-4GlcNAc

Divalent Ions

Ca++, Mn++

Mitogenic Activity

Yes