Sambucus nigra Lectin (SNA/EBL I+II) - Cy5

Sambucus nigra Lectin (SNA/EBL I+II) - Cy5
Sambucus nigra (Elderberry) Lectin (SNA/EBL I+II) - Cy5
Product image 1Sambucus nigra Lectin (SNA/EBL I+II) - Cy5
Product image 2Sambucus nigra (Elderberry) Lectin (SNA/EBL I+II) - Cy5

Price: Regular price $155.41

SKU#: 21511186-1

Product Description

Affinity purified Sambucus nigra lectin (EBL I+II, also known as SNA) is is composed of two ricin-related lectins. EBL I+II is a tetrameric glycoprotein with a recognition of the Neu5Ac(α2-6)Gal or GalNAc linkage in glycoconjugates.

EBL I+II is not blood group specific but it does agglutinate type A erythrocytes more strongly than either B or O cells. Trypsin treated erythrocytes react better than untreated cells. Neuraminidase treated erythrocytes react with this lectin due to the presence of terminal galactose resides. SNA has a broad specificity for both α- and β-linked galactose, as well as unrelated sugars such as fucose. It has been determined that the lectin does not bind to glycoproteins or glycolipids containing only terminal α(2,3)-linked sialic acid residues.

EBL I is composed of an A-chain with enzymatic activity and a B-chain with carbohydrate-binding activity. EBL II consists only of carbohydrate-binding B-chains. EBL I+II induces caspase-dependent apoptosis at low concentrations (nM) order, leading to typical symptoms of cell death in sensitive cells. This effect seems independent from the catalytic activity of the A-chain, but depends on the carbohydrate binding B-chain.

Cy5, when bound to Sambucus nigra Lectin (SNA/EBL I+II), can show the binding pattern of this lectin in cellular imaging and flow cytometry. The excitation wavelength required for Cy5 to fluoresce is high enough to avoid overlap with most other fluorochromes, making it useful for dual-labeling experiments. Because of this high excitation, there is typically less background from autofluorescence of biological specimens.

Technical Specifications

Abbreviation: SNA/EBL I+II
Material Source:: Elderberry
Conjugate:: Cyanine 5 (Cy5)
Concentration:: 1 mg/mL
Shelf Life:: 1 year
Blood Group Specificity:: Non-specific
Preferred Sugar Specificity:: Sialic Acid
Inhibiting or Eluting Sugar:: Lactose > β-Galactose
Fluorescence:: Red
Divalent Ions:: None Required
Excitation:: 650 nm
Emission:: 670 nm
Mitogenic Activity:: Yes
Lyophilized or Liquid: Liquid
Storage Temperature:: 2-8°C
Hazardous Shipping:: Non-hazardous

Applications

References

  • Inoue K, Wada J, Eguchi J, Nakatsuka A, Teshigawara S, Murakami K, et al. (2013) Urinary Fetuin-A Is a Novel Marker for Diabetic Nephropathy in Type 2 Diabetes Identified by Lectin Microarray. PLoS ONE 8(10): e77118. https://doi.org/10.1371/journal.pone.0077118
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