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L2895

Sigma-Aldrich

Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia)

Isolectin B4 (BSI-B4), FITC conjugate, lyophilized powder

Synonym(s):
Bandeirea simplicifolia agglutinin, BS-I
NACRES:
NA.32

Quality Level

conjugate

FITC conjugate

form

lyophilized powder

potency

<50 μg per mL agglutination activity (using human blood group B erythrocytes)

composition

Protein, ≥70% Lowry (balance sodium citrate)

extent of labeling

≥1 mol FITC per mol lectin

storage temp.

2-8°C

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General description

Lectins are carbohydrate-binding proteins, omnipresent, found in fungi, plants and animals. The structure of lectin is diversely studied in plants and animals. The secondary structure of this protein is rich in β-strands and possesses carbohydrate binding sites on the surface.

Application

Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia) has been used for microglia detection in murine astrocytes culture by staining the culture with lectin BS1-B4. It has also been used in the preparation of staining solution to incubate the tissue sections.

Packaging

0.2, 1 mg in serum bottle
Package size based on protein content by Lowry.

Biochem/physiol Actions

Lectin is known to be useful in glycoconjugate characterizing, imaging and targeting. Its use in a microarray assay, enable efficient glycome profiling, because of its specific interaction with oligosaccharides, glycoproteins and glycolipids. In plants and fungi, lectin defends against pathogens/feeders. Lectin participates in host recognition and tissue adhesion, thereby aids in the pathogenesis of microorganism.
BS-I has a major affinity for terminal α-D-galactosyl residues with a secondary affinity for terminal N-acetyl-α-D-galactosaminyl residues.

Other Notes

BS-I is a tetrameric lectin consisting of two types of subunits designated A and B. There are five BS-I isolectins with different subunit composition: BSI-B4, BSI-AB3, BSI-A2B2, BSI-A3B and BSI-A4. BSI-B4 is blood group B specific and has an exclusive affinity for terminal α-D-galactosyl residues, whereas BSI-A4 has blood group A specificity and has a major affinity for terminal N-acetyl-α-D-galactosaminyl residues.

Analysis Note

Agglutination activity is expressed in μg/mL and is determined from serial dilutions of a 1 mg/mL solution using phosphate buffered saline, pH 6.8, containing, for each lectin, calcium, magnesium, and manganese at different concentrations. This activity is the lowest concentration to agglutinate a 2% suspension of appropriate erythrocytes after 1 hr incubation at 25 °C.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

Product Information Sheet

Quotes and Ordering

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