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Description

Affinity-purified Vicia villosa lectin (VVL/VVA) is a tetramer composed of four subunits, including A and B subunits, with a dominant isolectin that is rich in B subunits. The A4 isolectin specifically agglutinates A1 erythrocytes, while the B4 isolectin does not agglutinate A, B, or O erythrocytes but binds to the Tn antigen, which is expressed on the surface of most tumor cells. A2B2 and similar tetramer isolectins exhibit characteristics of both A4 and B4 isolectins.

Recommended Usage: Recommended dilutions of 0.5 – 10 μg/ml in 1X PBS. More than 250 µg/ml is usually required to agglutinate type A1 cells. Less than 1 µg/ml will agglutinate neuraminidase treated cells.

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

Immunohistochemistry, Immunocytochemistry, Bioconjugations, Blotting, Diagnostic tool. Flow, Cell typing, Cancer biomarker.

References

1. Tollefsen SE, Kornfeld R. Isolation and characterization of Lectins from Vicia villosa. Two distinct carbohydrate binding activities are present in seed extracts. J Biol Chem. 1983 Apr 25;258(8):5165-71.

Properties

Shelf life

2 years

Storage Temperature

-20°C

ECCN #

EAR99

Purity

Affinity purified

Appearance color

Off-white to brown

Appearance form

Lyophilized Powder

Molecular Weight

139 kDa

Abbreviation (Lectins Only):

VVL/VVA

Source

Hairy Vetch Seed

Blood Group Specificity

T Lymphocytes > A

Carbohydrate Specificity

GalNAc

Inhibitory Carbohydrate

GalNAc

Divalent Ions

Ca++, Mn++

Cancer Biomarker

Pancratic and Gastric Cancer