Psophocarpus tetragonolobus Lectin (PTL/PTA I) - Cy5

Psophocarpus tetragonolobus Lectin (PTL/PTA I) - Cy5
Psophocarpus tetragonolobus (Winged bean) Lectin (PTL/PTA I) - Cy5
Product image 1Psophocarpus tetragonolobus Lectin (PTL/PTA I) - Cy5
Product image 2Psophocarpus tetragonolobus (Winged bean) Lectin (PTL/PTA I) - Cy5

Price: Regular price $153.32

SKU#: 21761139-1

Product Description

Psophocarpus tetragonolobus lectin (PTL I, psophocarpin B1, a storage protein with chymotrypsin inhibitory activity), is isolated from winged bean seeds and purified by affinity chromatography. The seed contains two lectins in which PTL I is the basic of the two. PTL I is a dimeric glycoprotein with specificity to GalNAc, with eluting sugar GalNAc. This lectin agglutinates trypsinized rabbit and human erythrocytes (type A and B) but not trypsinized human type O erythrocytes. PTL I recognize blood group A-substance derived oligosaccharides such as trisaccharide GalNAcα1-3Galβ1-4Glc.

Cy5, when bound to Psophocarpus tetragonolobus Lectin (PTL/PTA I), 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: PTL/PTA I
Material Source:: Winged bean
Conjugate:: Cyanine 5 (Cy5)
Concentration:: 1 mg/mL
Molecular Weight:: N/A
Molecular Formula:: N/A
Shelf Life:: 1 year
Blood Group Specificity:: Non-specific
Preferred Sugar Specificity:: N-Acetylgalactosamine, Galactose
Inhibiting or Eluting Sugar:: N-Acetylgalactosamine
Fluorescence:: Red
Divalent Ions:: None Required
Excitation:: 650 nm
Emission:: 670 nm
Mitogenic Activity:: No
Lyophilized or Liquid: Liquid
Storage Temperature:: 2-8°C
Hazardous Shipping:: Non-hazardous

Applications

References

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