Jacalin appears to bind only O-glycosidically linked oligosaccharides, preferring the structure galactosyl (β-1,3) N-acetylgalactosamine. This structure (the T-antigen) is the oligosaccharide to which peanut agglutinin (PNA) binds. However, unlike PNA, Jacalin will bind a mono- or disialylated form of this structure. This lectin has been used to purify human IgA. The specificity of this lectin also affords the opportunity to localize or isolate glycoproteins with O-glycosidically linked oligosaccharide side chains.
Fluorescein labeled Jacalin has an appropriate number of fluorochromes bound to provide the optimum staining characteristics for this lectin. This conjugate is supplied essentially free of unconjugated fluorochromes. The excitation maximum is at 495 nm and the emission maximum is at 515 nm.
|Unit Size||5 mg|
|Recommended Usage||The recommended concentration range for use is 5-20 µg/ml.|
|Maximum Excitation||495-500 nm|
|Inhibiting and/or Eluting Sugar||800 mM galactose (S-9003) or 100 mM melibiose|
|Maximum Emission||514-521 nm|
|Solution||10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, 10 mM lactose, 10 mM Beta-Cyclodextrin|
|Concentration||5 mg active conjugate/ml|
|Color of Fluorescence||Green|
Jacalin is a lectin composed of four subunits of approximately 16 kDa each.
Accompanying each fluorescent lectin is an analysis data sheet summarizing the results of our quality control tests and providing pertinent information on the product. All of these reagents are supplied as solutions preserved with sodium azide.
Inhibiting/Eluting Sugar: 800 mM galactose or 100 mM melibiose
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