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Description

Bauhinia purpurea agglutinin or lectin (BPA/BPL) is a tetrameric lectin with a molecular weight of 120 kDa. Binding appears to be highest for glycoconjugates containing galactosyl (β-1,3) N-acetylgalactosamine structures but oligosaccharides with a terminal α-linked N-acetylgalactosamine can also bind. BPA is lactose-specific and elutes with sugar lactose. It has specificity for blood groups A, B, O (-SA). Treatment of erythrocytes with neuraminidase or trypsin will increase the agglutination reaction, indicating that the receptor is masked by terminal carbohydrates. Although binding specificity is similar to that of peanut agglutinin, tissue staining patterns of these two lectins are distinct.

DyLight 488 can be used to visualize the binding pattern of Bauhinia purpurea lectin (BPL/BPA) in cellular imaging and flow cytometry. DyLight 488 is a green-fluorescent dye that functions effectively over a broad pH range (pH 4-9). It is brighter and more photostable than many other green-fluorescent dyes, including FITC.

Recommended Usage: Recommended dilutions of 0.5 – 10 µg / ml in 1XPBS. Less than 1 µg / ml will agglutinate human or Rabbit erythrocytes.

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

Immunofluorescence, Immunohistochemistry, Immunocytochemistry, Cell selections, Glycan array, Glycobiology.

References

1. N. Martin Young, David C. Watson and Ross E. Williams. Lectins and legume chemotaxonomy. Characterization of the N-acetyl-D-galactosamine specific lectin of Bauhinia purpurea. 1985 March, Vol 182, Issue 2, 25, 403-406.
2. Yamamoto K, Konami Y, Osawa T. Determination of the carbohydrate-binding site of Bauhinia purpurea lectin by affinity chromatography. J Chromatogr. 1992 Apr 24;597(1-2):221-30.
3. Nascimento KS, Morada RCV, Oliveira MV, Martins FWV, Sacramento-Neto JC, Cavada BS. Purification and partial characterization of a new melibiose-specific lectin from Bauhinia catingae Harms. 2024 Dec, Int J Biol Macromol.;282 (Pt 1):136564.
4. Wu AM, Wu JH, Liu JH, Singh T. Recognition profile of Bauhinia purpurea agglutinin (BPA). 2004 Feb. Life Sci. 20;74(14):1763-79.

Properties

Shelf life

2 years

Storage Temperature

-20°C

ECCN #

EAR99

Appearance color

Off-white to yellow to green

Appearance form

Liquid

Molecular Weight

120 kDa

Abbreviation (Lectins Only):

BPL/BPA

Source

Camel\'s Foot Seed

Blood Group Specificity

Human Erythrocytes (-SA)

Carbohydrate Specificity

Lactose, GalNAc

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

DyLight 488

Inhibitory Carbohydrate

Gal?13GalNAc

Fluorescence

Green

Divalent Ions

Ca++, Mn++

Excitation

493 nm

Cancer Biomarker

Pancreatic and Gastric Cancer

Mitogenic Activity

Yes

Emission

518 nm