L2140
Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia)
Isolectin B4 (BSI-B4), biotin conjugate, lyophilized powder
Synonym(s):
Bandeirea simplicifolia agglutinin, BS-I
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
Recommended Products
biological source
Bandieraea simplicifolia
Quality Level
conjugate
biotin conjugate
form
lyophilized powder
potency
<50 μg per mL agglutination activity (using human blood group B erythrocytes)
composition
Protein, ~95% E1%/280
extent of labeling
3-6 mol biotin per mol protein
storage temp.
−20°C
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General description
Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia) has A and B subunits, which recognizes αGalNAc and αGal-end groups respectively. Lectins are extracted from the seeds of the legume shrub Griffonia simplicifolia, which are carbohydrate binding proteins.
Application
Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia) has been used for immunohistochemistry and immunofluorescence staining.
Biochem/physiol Actions
Lectin from Bandeiraea simplicifolia (Griffonia simplicifolia) agglutinates human blood group A and B cells. It is specific for αGalNAc- and αGal. It acts as a reagent for the detection of this αGal epitope in biological materials. Lectin from Bandeiraea simplicifolia is used as a marker for xenoreactive antigen (αGal1−3Gal) and cancer. Lectin plays an important role in fertilization, embryogenesis, inflammation, metastasis and host-parasite recognition.
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.
Physical form
Contains citrate buffer salts and calcium chloride
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
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