Glycobiology – VectorLabs https://staging.vectorlabs.com From linker design and synthesis, bioconjugated design and manufacturing, biomolecule labeling and functionalization, and detection system and solutions, our team is here to help you move forward, with impact. Wed, 22 Oct 2025 17:14:40 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://staging.vectorlabs.com/wp-content/uploads/2024/11/V-favicon-02-100x100.png Glycobiology – VectorLabs https://staging.vectorlabs.com 32 32 Ulex Europaeus Agglutinin I (UEA I), DyLight® 649 https://staging.vectorlabs.com/products/dylight-649-ulex-europaeus-agglutinin/ Sat, 06 May 2023 01:31:23 +0000 https://staging.vectorlabs.com/?post_type=product&p=15240 Description

Ulex europaeus agglutinin I binds to many glycoproteins and glycolipids containing α-linked fucose residues, such as ABO blood group glycoconjugates. This lectin preferentially binds blood group O cells and has been used to determine secretor status. It has been established as an excellent marker for human endothelial cells.

DyLight 594 labeled Ulex europaeus agglutinin I 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.

  • Excitation at 655 nm
  • Emission at 670 nm
  • Color: Far Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage 2-8 °C
Maximum Excitation 655 nm
Maximum Emission 670 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration 1 mg active conjugate/ml
Conjugate DyLight 649
Color of Fluorescence Far Red
Sugar Specificity Fucose, Arabinose

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Description

Ulex europaeus agglutinin I binds to many glycoproteins and glycolipids containing α-linked fucose residues, such as ABO blood group glycoconjugates. This lectin preferentially binds blood group O cells and has been used to determine secretor status. It has been established as an excellent marker for human endothelial cells.

DyLight 594 labeled Ulex europaeus agglutinin I 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.

  • Excitation at 655 nm
  • Emission at 670 nm
  • Color: Far Red

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage2-8 °C
Maximum Excitation655 nm
Maximum Emission670 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration1 mg active conjugate/ml
ConjugateDyLight 649
Color of FluorescenceFar Red
Sugar SpecificityFucose, Arabinose

Documents

Citations

Technical Information

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: 50 mM – 100 mM L-fucose

The post Ulex Europaeus Agglutinin I (UEA I), DyLight® 649 appeared first on VectorLabs.

]]> Sambucus Nigra Lectin (SNA, EBL), CY5 https://staging.vectorlabs.com/products/cy5-sambucus-nigra-lectin/ Tue, 02 May 2023 19:59:19 +0000 https://staging.vectorlabs.com/?post_type=product&p=14594 Description

Sambucus nigra lectin, isolated from elderberry bark, binds preferentially to sialic acid attached to terminal galactose in α-2,6 and to a lesser degree, α-2,3 linkage. Binding is also inhibited to some extent by lactose or galactose. This lectin appears to bind sialic acid linked to N-acetylgalactosamine or galactose. SNA has been reported to inhibit cell-free protein synthesis.

Cy5 labeled Sambucus nigra lectin 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.

  • Excitation:  650 nm
  • Emission:  670 nm
  • Color:  Far Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml.
Recommended Storage 2-8 °C
Maximum Excitation 650 nm
Maximum Emission 670 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer
Concentration 1 mg active conjugate/ml
Conjugate Cy5
Color of Fluorescence Far Red
Sugar Specificity Sialic Acid

The post Sambucus Nigra Lectin (SNA, EBL), CY5 appeared first on VectorLabs.

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Description

Sambucus nigra lectin, isolated from elderberry bark, binds preferentially to sialic acid attached to terminal galactose in α-2,6 and to a lesser degree, α-2,3 linkage. Binding is also inhibited to some extent by lactose or galactose. This lectin appears to bind sialic acid linked to N-acetylgalactosamine or galactose. SNA has been reported to inhibit cell-free protein synthesis.

Cy5 labeled Sambucus nigra lectin 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. 

  • Excitation:  650 nm
  • Emission:  670 nm
  • Color:  Far Red
 

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml.
Recommended Storage2-8 °C
Maximum Excitation650 nm
Maximum Emission670 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer
Concentration1 mg active conjugate/ml
ConjugateCy5
Color of FluorescenceFar Red
Sugar SpecificitySialic Acid

Documents

Technical Information

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. 
Elution: 500 mM lactose in buffered saline followed by 500 mM lactose in acetic acid

The post Sambucus Nigra Lectin (SNA, EBL), CY5 appeared first on VectorLabs.

]]> Sambucus Nigra Lectin (SNA, EBL), CY3 https://staging.vectorlabs.com/products/cy3-labeled-sambucus-nigra-lectin/ Tue, 02 May 2023 19:52:53 +0000 https://staging.vectorlabs.com/?post_type=product&p=14583 Description

Sambucus nigra lectin, isolated from elderberry bark, binds preferentially to sialic acid attached to terminal galactose in α-2,6 and to a lesser degree, α-2,3 linkage. Binding is also inhibited to some extent by lactose or galactose. This lectin appears to bind sialic acid linked to N-acetylgalactosamine or galactose. SNA has been reported to inhibit cell-free protein synthesis.

Cy3 labeled Sambucus nigra lectin 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.

  • Excitation:  552 nm
  • Emission:  565 nm
  • Color:  Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml.
Recommended Storage 2-8 °C
Maximum Excitation 552 nm
Maximum Emission 565 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration 1 mg active conjugate/ml
Conjugate Cy3
Color of Fluorescence Red
Sugar Specificity Sialic Acid

The post Sambucus Nigra Lectin (SNA, EBL), CY3 appeared first on VectorLabs.

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Description

Sambucus nigra lectin, isolated from elderberry bark, binds preferentially to sialic acid attached to terminal galactose in α-2,6 and to a lesser degree, α-2,3 linkage. Binding is also inhibited to some extent by lactose or galactose. This lectin appears to bind sialic acid linked to N-acetylgalactosamine or galactose. SNA has been reported to inhibit cell-free protein synthesis.

Cy3 labeled Sambucus nigra lectin 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. 

  • Excitation:  552 nm
  • Emission:  565 nm
  • Color:  Red

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml.
Recommended Storage2-8 °C
Maximum Excitation552 nm
Maximum Emission565 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration1 mg active conjugate/ml
ConjugateCy3
Color of FluorescenceRed
Sugar SpecificitySialic Acid

Documents

Technical Information

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. 
Elution: 500 mM lactose in buffered saline followed by 500 mM lactose in acetic acid

The post Sambucus Nigra Lectin (SNA, EBL), CY3 appeared first on VectorLabs.

]]> Peanut Agglutinin (PNA), CY5 https://staging.vectorlabs.com/products/cy5-peanut-agglutinin/ Tue, 02 May 2023 19:49:30 +0000 https://staging.vectorlabs.com/?post_type=product&p=14573 Description

Peanut agglutinin binds preferentially to the T-antigen, a galactosyl (β-1,3) N-acetylgalactosamine structure present in many glycoconjugates such as M and N blood groups, gangliosides, and many other soluble and membrane-associated glycoproteins and glycolipids. With certain exceptions, the receptor sequence for PNA is normally sialylated which prevents the lectin from binding to its receptor oligosaccharide (see Jacalin). Even sialic acid which is not bound directly to the receptor sugars may inhibit binding. The presence of calcium ions in diluents can enhance the binding of PNA to receptors, possibly by neutralizing the negative charges on sialic acid residues adjacent to the receptor sequence.

Cy5 labeled Peanut agglutinin 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.

  • Excitation:  650 nm
  • Emission:  670 nm
  • Color:  Far Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml.
Recommended Storage 2-8 °C
Maximum Excitation 650 nm
Inhibiting and/or Eluting Sugar Inhibiting/Eluting Sugar: 200 mM galactose (S-9003).
Maximum Emission 670 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration 1 mg active conjugate/ml
Conjugate Cy5
Color of Fluorescence Far Red
Sugar Specificity Galactose

 

The post Peanut Agglutinin (PNA), CY5 appeared first on VectorLabs.

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Description

Peanut agglutinin binds preferentially to the T-antigen, a galactosyl (β-1,3) N-acetylgalactosamine structure present in many glycoconjugates such as M and N blood groups, gangliosides, and many other soluble and membrane-associated glycoproteins and glycolipids. With certain exceptions, the receptor sequence for PNA is normally sialylated which prevents the lectin from binding to its receptor oligosaccharide (see Jacalin). Even sialic acid which is not bound directly to the receptor sugars may inhibit binding. The presence of calcium ions in diluents can enhance the binding of PNA to receptors, possibly by neutralizing the negative charges on sialic acid residues adjacent to the receptor sequence.

Cy5 labeled Peanut agglutinin 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.

  • Excitation:  650 nm
  • Emission:  670 nm
  • Color:  Far Red

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml.
Recommended Storage2-8 °C
Maximum Excitation650 nm
Inhibiting and/or Eluting SugarInhibiting/Eluting Sugar: 200 mM galactose (S-9003).
Maximum Emission670 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration1 mg active conjugate/ml
ConjugateCy5
Color of FluorescenceFar Red
Sugar SpecificityGalactose

Documents

Technical Information

 

PNA is useful in distinguishing between normal and tumor tissues and in assessing malignancy in transitional mucosa. In addition, PNA binding can be used to measure cellular maturity in lymphoid tissues, to distinguish a variety of lymphocyte subpopulations in man and experimental animals, and to measure the levels of lymphoid cell populations in many diseases. PNA can be employed in the fractionation of stem cells in mice for use in bone marrow transplantation across histocompatibility barriers.

A major cell surface receptor for PNA may be asialo GM1 ganglioside. Since PNA shares specificity with the antibody to this glycolipid, PNA and the antibody can be used interchangeably in some applications.

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: 200 mM galactose

The post Peanut Agglutinin (PNA), CY5 appeared first on VectorLabs.

]]> Peanut Agglutinin (PNA), CY3 https://staging.vectorlabs.com/products/cy3-peanut-agglutinin/ Tue, 02 May 2023 19:46:03 +0000 https://staging.vectorlabs.com/?post_type=product&p=14562

Description

Peanut agglutinin binds preferentially to the T-antigen, a galactosyl (β-1,3) N-acetylgalactosamine structure present in many glycoconjugates such as M and N blood groups, gangliosides, and many other soluble and membrane-associated glycoproteins and glycolipids. With certain exceptions, the receptor sequence for PNA is normally sialylated which prevents the lectin from binding to its receptor oligosaccharide (see Jacalin). Even sialic acid which is not bound directly to the receptor sugars may inhibit binding. The presence of calcium ions in diluents can enhance the binding of PNA to receptors, possibly by neutralizing the negative charges on sialic acid residues adjacent to the receptor sequence.

Cy3 labeled Peanut agglutinin 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.

  • Excitation: 552 nm
  • Emission: 565 nm
  • Color: Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml.
Recommended Storage 2-8 °C
Maximum Excitation 552 nm
Inhibiting and/or Eluting Sugar Inhibiting/Eluting Sugar: 200 mM galactose (S-9003).
Maximum Emission 565 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration 1 mg active conjugate/ml
Conjugate Cy3
Color of Fluorescence Red
Sugar Specificity Galactose

The post Peanut Agglutinin (PNA), CY3 appeared first on VectorLabs.

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Description

Peanut agglutinin binds preferentially to the T-antigen, a galactosyl (β-1,3) N-acetylgalactosamine structure present in many glycoconjugates such as M and N blood groups, gangliosides, and many other soluble and membrane-associated glycoproteins and glycolipids. With certain exceptions, the receptor sequence for PNA is normally sialylated which prevents the lectin from binding to its receptor oligosaccharide (see Jacalin). Even sialic acid which is not bound directly to the receptor sugars may inhibit binding. The presence of calcium ions in diluents can enhance the binding of PNA to receptors, possibly by neutralizing the negative charges on sialic acid residues adjacent to the receptor sequence.

Cy3 labeled Peanut agglutinin 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.

  • Excitation: 552 nm
  • Emission: 565 nm
  • Color: Red

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml.
Recommended Storage2-8 °C
Maximum Excitation552 nm
Inhibiting and/or Eluting SugarInhibiting/Eluting Sugar: 200 mM galactose (S-9003).
Maximum Emission565 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, and a proprietary stabilizer.
Concentration1 mg active conjugate/ml
ConjugateCy3
Color of FluorescenceRed
Sugar SpecificityGalactose

Documents

Technical Information

PNA is useful in distinguishing between normal and tumor tissues and in assessing malignancy in transitional mucosa. In addition, PNA binding can be used to measure cellular maturity in lymphoid tissues, to distinguish a variety of lymphocyte subpopulations in man and experimental animals, and to measure the levels of lymphoid cell populations in many diseases. PNA can be employed in the fractionation of stem cells in mice for use in bone marrow transplantation across histocompatibility barriers.

A major cell surface receptor for PNA may be asialo GM1 ganglioside. Since PNA shares specificity with the antibody to this glycolipid, PNA and the antibody can be used interchangeably in some applications.

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: 200 mM galactose

The post Peanut Agglutinin (PNA), CY3 appeared first on VectorLabs.

]]> Ulex Europaeus Agglutinin I (UEA I), DyLight® 594 https://staging.vectorlabs.com/products/dylight-594-ulex-europaeus-agglutinin/ Tue, 02 May 2023 19:28:32 +0000 https://staging.vectorlabs.com/?post_type=product&p=14531 Description

Ulex europaeus agglutinin I binds to many glycoproteins and glycolipids containing α-linked fucose residues, such as ABO blood group glycoconjugates. This lectin preferentially binds blood group O cells and has been used to determine secretor status. It has been established as an excellent marker for human endothelial cells.

DyLight 594 labeled Ulex europaeus agglutinin I 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.

  • Excitation at 592 nm
  • Emission at 617 nm
  • Color:  Red

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage 2-8 °C
Maximum Excitation 592 nm
Maximum Emission 617 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration 1 mg active conjugate/ml
Conjugate DyLight 594
Color of Fluorescence Red
Sugar Specificity Fucose, Arabinose

The post Ulex Europaeus Agglutinin I (UEA I), DyLight® 594 appeared first on VectorLabs.

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Description

Ulex europaeus agglutinin I binds to many glycoproteins and glycolipids containing α-linked fucose residues, such as ABO blood group glycoconjugates. This lectin preferentially binds blood group O cells and has been used to determine secretor status. It has been established as an excellent marker for human endothelial cells.

DyLight 594 labeled Ulex europaeus agglutinin I 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.

  • Excitation at 592 nm
  • Emission at 617 nm
  • Color:  Red

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage2-8 °C
Maximum Excitation592 nm
Maximum Emission617 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration1 mg active conjugate/ml
ConjugateDyLight 594
Color of FluorescenceRed
Sugar SpecificityFucose, Arabinose

Documents

Citations

Technical Information

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: 50 mM – 100 mM L-fucose

The post Ulex Europaeus Agglutinin I (UEA I), DyLight® 594 appeared first on VectorLabs.

]]> Griffonia Simplicifolia Lectin I (GSL I) Isolectin B4, DyLight® 649 https://staging.vectorlabs.com/products/dylight-649-gsl-i-isolectin-b4/ Tue, 02 May 2023 18:34:56 +0000 https://staging.vectorlabs.com/?post_type=product&p=14463 Description

GSL I-B4 isolectin contains only the B subunits. It is a useful marker for endothelial cells from nonprimates such as mouse, rat, rabbit, and goat as well as a marker for non-peptidergic unmyelinated primary afferent neurons.  This “B”-rich lectin preferentially agglutinates blood group B cells and is specific for α-galactose residues.

DyLight™ 649 GSL I-B4 isolectin is produced by using special conjugation procedures to incorporate DyLight™ 649 into our affinity-purified lectin. This conjugate has an appropriate number of fluorochromes bound which provide the maximum fluorescence and optimum staining characteristics for this particular lectin. This reagent is supplied essentially free of unconjugated fluorochromes and inactive lectin.

  • Excitation maximum:  646 nm
  • emission maximum:  674 nm
  • Color:  Red

Specifications

Unit Size 0.5 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage 2-8 °C
Maximum Excitation 655 nm
Maximum Emission 670 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration 1 mg active conjugate/ml
Conjugate DyLight 649
Color of Fluorescence Far Red
Sugar Specificity Galactose

The post Griffonia Simplicifolia Lectin I (GSL I) Isolectin B4, DyLight® 649 appeared first on VectorLabs.

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Description

GSL I-B4 isolectin contains only the B subunits. It is a useful marker for endothelial cells from nonprimates such as mouse, rat, rabbit, and goat as well as a marker for non-peptidergic unmyelinated primary afferent neurons.  This “B”-rich lectin preferentially agglutinates blood group B cells and is specific for α-galactose residues. 

DyLight™ 649 GSL I-B4 isolectin is produced by using special conjugation procedures to incorporate DyLight™ 649 into our affinity-purified lectin. This conjugate has an appropriate number of fluorochromes bound which provide the maximum fluorescence and optimum staining characteristics for this particular lectin. This reagent is supplied essentially free of unconjugated fluorochromes and inactive lectin.

  • Excitation maximum:  646 nm
  • emission maximum:  674 nm
  • Color:  Red

 

Specifications

Unit Size0.5 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage2-8 °C
Maximum Excitation655 nm
Maximum Emission670 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2.
Concentration1 mg active conjugate/ml
ConjugateDyLight 649
Color of FluorescenceFar Red
Sugar SpecificityGalactose

Documents

Product FAQs

The Lycopersicon esculentum (tomato) lectin has been widely reported as an effective blood vessel marker for in vivo vascular perfusion studies in rodent species. Investigators have primarily utilized one of the fluorophore conjugated tomato lectin formats to trace blood vasculature in normal and diseased animals via tail vein or intracardiac injection. However, the biotinylated format has also been used. It allows for flexibility in subsequent visualization by way of either fluorescence or enzyme-based methods. Published references are best source for procedural details. Examples of references where biotinylated tomato lectins have been applied via in vivo perfusion are featured below: Robertson, R.T., et al. (2014) Histochem. Cell Biol. 143(2) Thurston, G., et al. (1998) Am. J Pathol. 153(4):1099-1112

Technical Information

GSL I is a family of glycoproteins with molecular weights of approximately 114 kDa. There are two types of subunits, termed A and B, with slightly different molecular weights. These subunits combine to form tetrameric structures, resulting in five isolectins. The A -rich lectin preferentially agglutinates blood group A erythrocytes and thus appears to be specific for α-N-acetylgalactosamine residues, while the B -rich lectin preferentially agglutinates blood group B cells and is specific for α-galactose residues. Our GSL I is a mixture of the five isolectins. GSL I has been reported to bind several glycoproteins including laminin.

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 Sugar: 500 mM galactose or 100 mM raffinose

The post Griffonia Simplicifolia Lectin I (GSL I) Isolectin B4, DyLight® 649 appeared first on VectorLabs.

]]> Lens Culinaris Agglutinin (LCA), DyLight® 649 https://staging.vectorlabs.com/products/dylight-649-labeled-lens-culinaris-agglutinin/ Tue, 02 May 2023 16:04:48 +0000 https://staging.vectorlabs.com/?post_type=product&p=14318 Description

Lens culinaris agglutinin (LCA) recognizes sequences containing α-linked mannose residues but recognizes additional sugars as part of the receptor structure, giving it a narrower specificity than Con A. An α-linked fucose residue attached to the N-acetylchitobiose portion of the core oligosaccharide significantly enhances affinity. By exploiting this increased specificity, glycoproteins and glycopeptides can be subfractionated with LCA after initial isolation with Con A.

DyLight™ 649 labeled LCA has an appropriate number of bound fluorochromes, which provides the optimum staining characteristics for this lectin. This conjugate is supplied essentially free of unconjugated fluorochromes.

  • Excitation maximum: 655 nm
  • Emission maximum: 670 nm
  • Color: Far red

 

Lens Culinaris Agglutinin (LCA), DyLight™ 649 is provided in a 1 mL aliquot at a concentration of 1 mg active conjugate/ml.

Specifications

Unit Size 1 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage The recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage 2-8 °C
Maximum Excitation 655 nm
Maximum Emission 670 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2 , 0.01 mM MnCl2
Concentration 1 mg active conjugate/ml
Conjugate DyLight 649
Color of Fluorescence Far Red
Sugar Specificity Mannose, Glucose

The post Lens Culinaris Agglutinin (LCA), DyLight® 649 appeared first on VectorLabs.

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Description

Lens culinaris agglutinin (LCA) recognizes sequences containing α-linked mannose residues but recognizes additional sugars as part of the receptor structure, giving it a narrower specificity than Con A. An α-linked fucose residue attached to the N-acetylchitobiose portion of the core oligosaccharide significantly enhances affinity. By exploiting this increased specificity, glycoproteins and glycopeptides can be subfractionated with LCA after initial isolation with Con A.

DyLight™ 649 labeled LCA has an appropriate number of bound fluorochromes, which provides the optimum staining characteristics for this lectin. This conjugate is supplied essentially free of unconjugated fluorochromes.

  • Excitation maximum: 655 nm
  • Emission maximum: 670 nm
  • Color: Far red

Lens Culinaris Agglutinin (LCA), DyLight™ 649 is provided in a 1 mL aliquot at a concentration of 1 mg active conjugate/ml.

Specifications

Unit Size1 mg
ApplicationsImmunofluorescence, Glycobiology
Recommended UsageThe recommended concentration range for use is 5-20 µg/ml. If a precipitate forms upon long-term storage, warm to 37 ºC.
Recommended Storage2-8 °C
Maximum Excitation655 nm
Maximum Emission670 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2 , 0.01 mM MnCl2
Concentration1 mg active conjugate/ml
ConjugateDyLight 649
Color of FluorescenceFar Red
Sugar SpecificityMannose, Glucose

Documents

Citations

Technical Information

Lens culinaris agglutinin is composed of four subunits – two of about 17 kDa and two of 8 kDa. 

LCA has been found to be one of the most effective agents in preventing skin allograft rejection in model systems. LCA has been used to purify numerous glycoproteins, including immunoglobulins, histocompatibility antigens, and α2-macroglobulin.

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: mixture of 200 mM α-methylmannoside/200 mM α-methylglucoside

The post Lens Culinaris Agglutinin (LCA), DyLight® 649 appeared first on VectorLabs.

]]> Wheat Germ Agglutinin (WGA), Rhodamine https://staging.vectorlabs.com/products/rhodamine-wheat-germ-agglutinin-wga/ Tue, 02 May 2023 14:50:26 +0000 https://staging.vectorlabs.com/?post_type=product&p=14158 Description

The receptor sugar for WGA is N-acetylglucosamine, with preferential binding to dimers and trimers of this sugar. WGA can bind oligosaccharides containing terminal N-acetylglucosamine or chitobiose, structures which are common to many serum and membrane glycoproteins. Bacterial cell wall peptidoglycans, chitin, cartilage glycosaminoglycans, and glycolipids can also bind WGA. Native WGA has also been reported to interact with some glycoproteins via sialic acid residues (see succinylated WGA).

Rhodamine labeled WGA 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 550 nm and the emission maximum is at 575 nm.

Specifications

Unit Size 5 mg
Applications Immunofluorescence, Glycobiology
Recommended Usage For most applications we recommend a freshly prepared working solution of 5-20 µg/mlin the above buffer.
Recommended Storage 2-8 °C
Maximum Excitation 545-555 nm
Inhibiting and/or Eluting Sugar 400 mM N-acetylglucosamine (S-9002)
Maximum Emission 570-580 nm
Solution 10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, 25 mM N-acetylglucosamine
Concentration 5 mg active conjugate/ml
Conjugate Rhodamine
Sugar Specificity N-Acetylglucosamine

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Description

The receptor sugar for WGA is N-acetylglucosamine, with preferential binding to dimers and trimers of this sugar. WGA can bind oligosaccharides containing terminal N-acetylglucosamine or chitobiose, structures which are common to many serum and membrane glycoproteins. Bacterial cell wall peptidoglycans, chitin, cartilage glycosaminoglycans, and glycolipids can also bind WGA. Native WGA has also been reported to interact with some glycoproteins via sialic acid residues (see succinylated WGA).

Rhodamine labeled WGA 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 550 nm and the emission maximum is at 575 nm.

Specifications

Unit Size

5 mg

ApplicationsImmunofluorescence, Glycobiology
Recommended UsageFor most applications we recommend a freshly prepared working solution of 5-20 µg/mlin the above buffer.
Recommended Storage2-8 °C
Maximum Excitation545-555 nm
Inhibiting and/or Eluting Sugar400 mM N-acetylglucosamine (S-9002)
Maximum Emission570-580 nm
Solution10 mM HEPES, 0.15 M NaCl, pH 7.5, 0.08% sodium azide, 0.1 mM CaCl2, 25 mM N-acetylglucosamine
Concentration5 mg active conjugate/ml
ConjugateRhodamine
Sugar SpecificityN-Acetylglucosamine

Documents

Citations

Technical Information

Wheat germ agglutinin (WGA) contains a group of closely related isolectins, with an isoelectric point about pH 9. This lectin is used for the purification of insulin receptors.

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: Chitin Hydrolysate or 500 mM N-acetylglucosamine with salt and/or acid elution generally required

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]]> Jacalin, Unconjugated https://staging.vectorlabs.com/products/unconjugated-jacalin/ Tue, 02 May 2023 14:44:44 +0000 https://staging.vectorlabs.com/?post_type=product&p=14147 Description

This lectin 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.

Specifications

Unit Size 25 mg
Applications Glycobiology, Mitogenic Stimulation
Recommended Usage Although many buffers can be employed for reconstituting and diluting this lectin, 10 mM HEPES buffered saline, pH 8.5, 0.1 mM CaCl2 is recommended.For preserving solutions, stored at 4 ºC, 0.08% sodium azide can be used.
Recommended Storage 2-8 °C
Conjugate Unconjugated
Sugar Specificity Galactose

The post Jacalin, Unconjugated appeared first on VectorLabs.

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Description

This lectin 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.

Specifications

Unit Size25 mg
ApplicationsGlycobiology, Mitogenic Stimulation
Recommended UsageAlthough many buffers can be employed for reconstituting and diluting this lectin, 10 mM HEPES buffered saline, pH 8.5, 0.1 mM CaCl2 is recommended.For preserving solutions, stored at 4 ºC, 0.08% sodium azide can be used.
Recommended Storage2-8 °C
ConjugateUnconjugated
Sugar SpecificityGalactose

Documents

Citations

Technical Information

Jacalin is a lectin composed of four subunits of approximately 16 kDa each. This lectin 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.

Inhibiting/Eluting Sugar: 800 mM galactose or 100 mM melibiose

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