标签归档：生物素

VECTOR SBA生物素标记的大豆凝集素B-1015

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VECTOR SBA生物素标记的大豆凝集素

  • 产品型号：  B-1015
  • 简单描述
  • VECTOR SBA生物素标记的大豆凝集素SBA Detection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR SBA生物素标记的大豆凝集素 

 

isolated from Glycine max （soybean） seeds
Composed of four subunits of approximay equal size, soybean agglutinin is a family of closely related isolectins. This glycoprotein has a molecular weight of about 120,000 and an isoelectric point near pH 6.0. SBA preferentially binds to oligosaccharide structures with terminal a- or b-linked N-acetylgalactosamine, and to a lesser extent, galactose residues. Binding can be blocked by substitutions on penultimate sugars, such as fucose attached to the penultimate galactose in blood group B substance. SBA has been used in glycoprotein fractionation, histochemical applications and cell sorter analysis.

An important application for SBA is the separation of pluripotential stem cells from human bone marrow. Cells fractionated by SBA do not produce graft vs host disease and can be used in bone marrow transplantation across histocompatibility barriers （references available upon request）. It should be noted that some forms of SBA seem to be excellent in separating human cells while others are better for cells of other species.

VECTOR SBA生物素标记的大豆凝集素 

This biotinylated lectin conjugate is prepared from affinity-purified lectin and is optimally labeled with biotin. Essentially free of inactive lectin conjugate and containing no free biotin, this biotinylated lectin provides an ideal intermediate for examining glycoconjugates using the Biotin-Avidin System. First the biotin-labeled lectin is added, followed by the VECTASTAIN® ABC Reagent, Avidin D conjugate, or streptavidin derivative. Another possible application is in the isolation of lymphokines and other products of mitogenic stimulation.
Inhibiting/Eluting Sugar: 200 mM N-acetylgalactosamine

 

 

VECTOR生物素Jacalin Biotinylated JacalinB-1155

发表于由

VECTOR生物素Jacalin Biotinylated Jacalin

  • 产品型号：  B-1155
  • 简单描述
  • VECTOR生物素Jacalin Biotinylated JacalinDetection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR生物素Jacalin Biotinylated Jacalin

isolated from Artocarpus integrifolia （Jackfruit） seeds 
Jacalin is a lectin composed of four subunits, two of approximay 10,000 daltons and two of 16,000 daltons each. This 50,000 dalton glycoprotein appears to bind only O-glycosidically linked oligosaccharides, preferring the structure galactosyl （b-1,3） N-acetylgalactosamine. This structure （the so-called “T-antigen”） is the oligosaccharide to which peanut agglutinin binds. However, unlike PNA, Jacalin will bind this structure even in a mono- or disialylated form. This lectin has been used to purify human IgA, since no other human immunoglobulin class binds Jacalin （references available upon request）. The specificity of this lectin also affords the opportunity to localize or isolate glycoproteins with O-glycosidically linked oligosaccharide side chains.

This biotinylated lectin conjugate is prepared from affinity-purified lectin and is optimally labeled with biotin. Essentially free of inactive lectin conjugate and containing no free biotin, this biotinylated lectin provides an ideal intermediate for examining glycoconjugates using the Biotin-Avidin System. First the biotin-labeled lectin is added, followed by the VECTASTAIN® ABC Reagent, Avidin D conjugate, or streptavidin derivative. Another possible application is in the isolation of lymphokines and other products of mitogenic stimulation. 
Inhibiting/Eluting Sugar: 800 mM galactose or 100 mM melibiose 
 

VECTOR生物素Jacalin Biotinylated Jacalin 详细产品信息可和选购

VECTOR GNL生物素雪花莲凝集素Biotinylated Galanthus Nivalis B-1245

发表于由

VECTOR GNL生物素雪花莲凝集素Biotinylated Galanthus Nivalis

  • 产品型号：  B-1245
  • 简单描述
  • VECTOR GNL生物素雪花莲凝集素Biotinylated Galanthus Nivalis LectinDetection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR GNL生物素雪花莲凝集素Biotinylated Galanthus Nivalis Lectin

The following protocols offer guidelines for assay development using lectin-based detection of glycoproteins
present in tissue sections, adsorbed onto microtiter plates, or transferred from electrophoretic
gels onto nitrocellulose or PVDF membranes.
Histochemistry:
1a. Staining procedure for paraffin sections: Deparaffinize and hydrate tissue sections through
xylenes or other clearing agents and graded alcohol series and rinse for 5 minutes in tap water.
If required, retrieve antigens using the Antigen Unmasking Solution （H-3300 or H-3301）.
1b. Staining procedure for frozen sections: Air dry sections. Immediay before staining, fix
sections with acetone. Transfer slices to buffer. If endogenous enzyme activities are present,
inactivate using appropriate methods.
2. Perform Streptavidin/Biotin blocking if required following kit instructions （SP-2002）. Do not
use SP-2001. Block non-specific binding by incubating section with Carbo-Free™ Blocking
Solution （Cat. No. SP-5040） for 30 minutes at room temperature. Blot excess blocking solution
from the sections.
3. Apply biotinylated lectin at approximay 2-20 μg/ml in PBS （10 mM sodium phosphate, 150
mM NaCl, pH 7.4） to the sections and incubate for 30 minutes at room temperature. Wash with
TPBS （PBS + 0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
sections and incubate for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate precipitating substrate for the enzyme system used in step 4. For peroxidase,
ImmPACT™ DAB （Cat. No. SK-4105） is recommended; for alkaline phosphatase, Vector® Red
（Cat. No. SK-5100）. Rinse in tap water.
6. Counterstain （optional）, clear and mount. For galactose or GalNAc-specific lectins avoid mounting
in glycerol-based mounting media.
ELISA:
1. Adsorb target protein to microtiter plate by placing 50-200 μl of approximay 3 μg/ml glycoprotein
solution into the desired wells. Some wells may be left untreated as negative controls. Incubate at
37 ºC for 1 hour. Wash wells three times with TPBS （PBS + 0.05% Tween™20）.
2. Block non-specific binding by filling each well to the brim with Carbo-Free™ Blocking Solution
（Cat. No. SP-5040） for 30 minutes at room temperature. Wash wells three times with TPBS.
3. Apply 50-200 μl of approximay 2-20 μg/ml biotinylated lectin in PBS to the wells and incubate
for 30 minutes at room temperature. Wash wells three times with TPBS.

4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
wells and incubate for 30 minutes at room temperature. Wash wells three times with TPBS.
5. Apply an appropriate non-precipitating substrate for the enzyme system used in step 4. For
peroxidase, ABTS （Cat. No. SK-4500） is recommended; for alkaline phophatase, pNPP （Cat. No.
SK-5900）.
6. Quantify the colored reaction product by spectrophotometry.
Western Blot:
1. Perform electrophoresis and transfer proteins to a membrane according to standard procedures.
2. Block non-specific binding by incubating the membrane in Carbo-Free™ Blocking Solution （Cat.
No. SP-5040） for 30 minutes at room temperature. Use a sufficient volume to compley cover
the membrane.
3. Incubate membrane in PBS containing approximay 2-20 μg/ml biotinylated lectin for 30 minutes
at room temperature. Wash with TPBS （PBS +0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Incubate the
membrane in the reagent for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate substrate for the enzyme system used in step 4. For peroxidase, DuoLuX™
Chemiluminescent/Fluorescent Substrate for Peroxidase （Cat. No. SK-6604） or ImmPACT™ DAB
（Cat. No. SK-4105） are recommended; for alkaline phosphatase, Chemiluminescent/Fluorescent
Substrate for Alkaline Phosphatase （Cat. No. SK-6605） or BCIP/NBT （Cat. No. SK-5400） are
recommended.
Negative Controls
Negative controls should be run in parallel in each of the above described methodologies to validate
binding results. When applying lectins, one of the most appropriate negative controls is to preabsorb
the lectin with a concentration of a defined sugar, with which, the lectin has a known high affinity.
Vector Labs offers a series of sugars that are intended for such a purpose.
The lectin is diluted to a suitable working concentration in a solution containing approximay
200 mM to 500 mM of the sugar. This mixture is left to bind at room temperature for 30 to 60 min.
Following this absorption incubation, the mixture is substituted into the procedure in place of the unabsorbed
lectin and incubated under the same conditions. The subsequent detection procedure is followed
as for the test method. In most cases the vast majority of lectin binding to the tissue section （membrane
blot, etc.） will be eliminated. Some trace binding to the section （blot etc） may still be present under
these conditions and probably indicates presence of secondary or tertiary sugar preferences. These negative
control results should be compared with the test results to determine specificity of binding

 

VECTOR EEL生物素大叶黄杨Europaeus凝集素B-11335

发表于由

VECTOR EEL生物素大叶黄杨Europaeus凝集素

  • 产品型号：  B-11335
  • 简单描述
  • VECTOR EEL生物素大叶黄杨Europaeus凝集素Detection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

 

VECTOR EEL生物素大叶黄杨Europaeus凝集素

The following protocols offer guidelines for assay development using lectin-based detection of glycoproteins
present in tissue sections, adsorbed onto microtiter plates, or transferred from electrophoretic
gels onto nitrocellulose or PVDF membranes.
Histochemistry:
1a. Staining procedure for paraffin sections: Deparaffinize and hydrate tissue sections through
xylenes or other clearing agents and graded alcohol series and rinse for 5 minutes in tap water.
If required, retrieve antigens using the Antigen Unmasking Solution （H-3300 or H-3301）.
1b. Staining procedure for frozen sections: Air dry sections. Immediay before staining, fix
sections with acetone. Transfer slices to buffer. If endogenous enzyme activities are present,
inactivate using appropriate methods.
2. Perform Streptavidin/Biotin blocking if required following kit instructions （SP-2002）. Do not
use SP-2001. Block non-specific binding by incubating section with Carbo-Free™ Blocking
Solution （Cat. No. SP-5040） for 30 minutes at room temperature. Blot excess blocking solution
from the sections.
3. Apply biotinylated lectin at approximay 2-20 μg/ml in PBS （10 mM sodium phosphate, 150
mM NaCl, pH 7.4） to the sections and incubate for 30 minutes at room temperature. Wash with
TPBS （PBS + 0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
sections and incubate for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate precipitating substrate for the enzyme system used in step 4. For peroxidase,
ImmPACT™ DAB （Cat. No. SK-4105） is recommended; for alkaline phosphatase, Vector® Red
（Cat. No. SK-5100）. Rinse in tap water.
6. Counterstain （optional）, clear and mount. For galactose or GalNAc-specific lectins avoid mounting
in glycerol-based mounting media.
ELISA:
1. Adsorb target protein to microtiter plate by placing 50-200 μl of approximay 3 μg/ml glycoprotein
solution into the desired wells. Some wells may be left untreated as negative controls. Incubate at
37 ºC for 1 hour. Wash wells three times with TPBS （PBS + 0.05% Tween™20）.
2. Block non-specific binding by filling each well to the brim with Carbo-Free™ Blocking Solution
（Cat. No. SP-5040） for 30 minutes at room temperature. Wash wells three times with TPBS.
3. Apply 50-200 μl of approximay 2-20 μg/ml biotinylated lectin in PBS to the wells and incubate
for 30 minutes at room temperature. Wash wells three times with TPBS.

4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
wells and incubate for 30 minutes at room temperature. Wash wells three times with TPBS.
5. Apply an appropriate non-precipitating substrate for the enzyme system used in step 4. For
peroxidase, ABTS （Cat. No. SK-4500） is recommended; for alkaline phophatase, pNPP （Cat. No.
SK-5900）.
6. Quantify the colored reaction product by spectrophotometry.
Western Blot:
1. Perform electrophoresis and transfer proteins to a membrane according to standard procedures.
2. Block non-specific binding by incubating the membrane in Carbo-Free™ Blocking Solution （Cat.
No. SP-5040） for 30 minutes at room temperature. Use a sufficient volume to compley cover
the membrane.
3. Incubate membrane in PBS containing approximay 2-20 μg/ml biotinylated lectin for 30 minutes
at room temperature. Wash with TPBS （PBS +0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Incubate the
membrane in the reagent for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate substrate for the enzyme system used in step 4. For peroxidase, DuoLuX™
Chemiluminescent/Fluorescent Substrate for Peroxidase （Cat. No. SK-6604） or ImmPACT™ DAB
（Cat. No. SK-4105） are recommended; for alkaline phosphatase, Chemiluminescent/Fluorescent
Substrate for Alkaline Phosphatase （Cat. No. SK-6605） or BCIP/NBT （Cat. No. SK-5400） are
recommended.
VECTOR EEL生物素大叶黄杨Europaeus凝集素

Negative Controls
Negative controls should be run in parallel in each of the above described methodologies to validate
binding results. When applying lectins, one of the most appropriate negative controls is to preabsorb
the lectin with a concentration of a defined sugar, with which, the lectin has a known high affinity.
Vector Labs offers a series of sugars that are intended for such a purpose.
The lectin is diluted to a suitable working concentration in a solution containing approximay
200 mM to 500 mM of the sugar. This mixture is left to bind at room temperature for 30 to 60 min.
Following this absorption incubation, the mixture is substituted into the procedure in place of the unabsorbed
lectin and incubated under the same conditions. The subsequent detection procedure is followed
as for the test method. In most cases the vast majority of lectin binding to the tissue section （membrane
blot, etc.） will be eliminated. Some trace binding to the section （blot etc） may still be present under
these conditions and probably indicates presence of secondary or tertiary sugar preferences. These negative
control results should be compared with the test results to determine specificity of binding

 

详细产品信息可和选购

VECTOR 生物素曼陀罗凝集素Biotinylated Datura Stramonium LecB-1185

发表于由

VECTOR 生物素曼陀罗凝集素Biotinylated Datura Stramonium Lec

  • 产品型号：  B-1185
  • 简单描述
  • VECTOR 生物素曼陀罗凝集素Biotinylated Datura Stramonium LectinDetection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR 生物素曼陀罗凝集素Biotinylated Datura Stramonium Lectin

The following protocols offer guidelines for assay development using lectin-based detection of glycoproteins
present in tissue sections, adsorbed onto microtiter plates, or transferred from electrophoretic
gels onto nitrocellulose or PVDF membranes.
Histochemistry:
1a. Staining procedure for paraffin sections: Deparaffinize and hydrate tissue sections through
xylenes or other clearing agents and graded alcohol series and rinse for 5 minutes in tap water.
If required, retrieve antigens using the Antigen Unmasking Solution （H-3300 or H-3301）.
1b. Staining procedure for frozen sections: Air dry sections. Immediay before staining, fix
sections with acetone. Transfer slices to buffer. If endogenous enzyme activities are present,
inactivate using appropriate methods.
2. Perform Streptavidin/Biotin blocking if required following kit instructions （SP-2002）. Do not
use SP-2001. Block non-specific binding by incubating section with Carbo-Free™ Blocking
Solution （Cat. No. SP-5040） for 30 minutes at room temperature. Blot excess blocking solution
from the sections.
3. Apply biotinylated lectin at approximay 2-20 μg/ml in PBS （10 mM sodium phosphate, 150
mM NaCl, pH 7.4） to the sections and incubate for 30 minutes at room temperature. Wash with
TPBS （PBS + 0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
sections and incubate for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate precipitating substrate for the enzyme system used in step 4. For peroxidase,
ImmPACT™ DAB （Cat. No. SK-4105） is recommended; for alkaline phosphatase, Vector® Red
（Cat. No. SK-5100）. Rinse in tap water.
6. Counterstain （optional）, clear and mount. For galactose or GalNAc-specific lectins avoid mounting
VECTOR 生物素曼陀罗凝集素Biotinylated Datura Stramonium Lectin

in glycerol-based mounting media.
ELISA:
1. Adsorb target protein to microtiter plate by placing 50-200 μl of approximay 3 μg/ml glycoprotein
solution into the desired wells. Some wells may be left untreated as negative controls. Incubate at
37 ºC for 1 hour. Wash wells three times with TPBS （PBS + 0.05% Tween™20）.
2. Block non-specific binding by filling each well to the brim with Carbo-Free™ Blocking Solution
（Cat. No. SP-5040） for 30 minutes at room temperature. Wash wells three times with TPBS.
3. Apply 50-200 μl of approximay 2-20 μg/ml biotinylated lectin in PBS to the wells and incubate
for 30 minutes at room temperature. Wash wells three times with TPBS.

4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
wells and incubate for 30 minutes at room temperature. Wash wells three times with TPBS.
5. Apply an appropriate non-precipitating substrate for the enzyme system used in step 4. For
peroxidase, ABTS （Cat. No. SK-4500） is recommended; for alkaline phophatase, pNPP （Cat. No.
SK-5900）.
6. Quantify the colored reaction product by spectrophotometry.
Western Blot:
1. Perform electrophoresis and transfer proteins to a membrane according to standard procedures.
2. Block non-specific binding by incubating the membrane in Carbo-Free™ Blocking Solution （Cat.
No. SP-5040） for 30 minutes at room temperature. Use a sufficient volume to compley cover
the membrane.
3. Incubate membrane in PBS containing approximay 2-20 μg/ml biotinylated lectin for 30 minutes
at room temperature. Wash with TPBS （PBS +0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Incubate the
membrane in the reagent for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate substrate for the enzyme system used in step 4. For peroxidase, DuoLuX™
Chemiluminescent/Fluorescent Substrate for Peroxidase （Cat. No. SK-6604） or ImmPACT™ DAB
（Cat. No. SK-4105） are recommended; for alkaline phosphatase, Chemiluminescent/Fluorescent
Substrate for Alkaline Phosphatase （Cat. No. SK-6605） or BCIP/NBT （Cat. No. SK-5400） are
recommended.
Negative Controls
Negative controls should be run in parallel in each of the above described methodologies to validate
binding results. When applying lectins, one of the most appropriate negative controls is to preabsorb
the lectin with a concentration of a defined sugar, with which, the lectin has a known high affinity.
Vector Labs offers a series of sugars that are intended for such a purpose.
The lectin is diluted to a suitable working concentration in a solution containing approximay
200 mM to 500 mM of the sugar. This mixture is left to bind at room temperature for 30 to 60 min.
Following this absorption incubation, the mixture is substituted into the procedure in place of the unabsorbed
lectin and incubated under the same conditions. The subsequent detection procedure is followed
as for the test method. In most cases the vast majority of lectin binding to the tissue section （membrane
blot, etc.） will be eliminated. Some trace binding to the section （blot etc） may still be present under
these conditions and probably indicates presence of secondary or tertiary sugar preferences. These negative
control results should be compared with the test results to determine specificity of binding

VECTOR BPL生物素菊紫荆凝集素Biotinylated Bauhinia Purpurea B-1285

发表于由

VECTOR BPL生物素菊紫荆凝集素Biotinylated Bauhinia Purpurea

  • 产品型号：  B-1285
  • 简单描述
  • VECTOR BPL生物素菊紫荆凝集素Biotinylated Bauhinia Purpurea LectinDetection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR BPL生物素菊紫荆凝集素Biotinylated Bauhinia Purpurea Lectin

The following protocols offer guidelines for assay development using lectin-based detection of glycoproteins
present in tissue sections, adsorbed onto microtiter plates, or transferred from electrophoretic
gels onto nitrocellulose or PVDF membranes.
Histochemistry:
1a. Staining procedure for paraffin sections: Deparaffinize and hydrate tissue sections through
xylenes or other clearing agents and graded alcohol series and rinse for 5 minutes in tap water.
If required, retrieve antigens using the Antigen Unmasking Solution （H-3300 or H-3301）.
1b. Staining procedure for frozen sections: Air dry sections. Immediay before staining, fix
sections with acetone. Transfer slices to buffer. If endogenous enzyme activities are present,
inactivate using appropriate methods.
2. Perform Streptavidin/Biotin blocking if required following kit instructions （SP-2002）. Do not
use SP-2001. Block non-specific binding by incubating section with Carbo-Free™ Blocking
Solution （Cat. No. SP-5040） for 30 minutes at room temperature. Blot excess blocking solution
from the sections.
3. Apply biotinylated lectin at approximay 2-20 μg/ml in PBS （10 mM sodium phosphate, 150
mM NaCl, pH 7.4） to the sections and incubate for 30 minutes at room temperature. Wash with
TPBS （PBS + 0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
sections and incubate for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate precipitating substrate for the enzyme system used in step 4. For peroxidase,
ImmPACT™ DAB （Cat. No. SK-4105） is recommended; for alkaline phosphatase, Vector® Red
（Cat. No. SK-5100）. Rinse in tap water.
6. Counterstain （optional）, clear and mount. For galactose or GalNAc-specific lectins avoid mounting
in glycerol-based mounting media.
ELISA:
1. Adsorb target protein to microtiter plate by placing 50-200 μl of approximay 3 μg/ml glycoprotein
solution into the desired wells. Some wells may be left untreated as negative controls. Incubate at
37 ºC for 1 hour. Wash wells three times with TPBS （PBS + 0.05% Tween™20）.
2. Block non-specific binding by filling each well to the brim with Carbo-Free™ Blocking Solution
（Cat. No. SP-5040） for 30 minutes at room temperature. Wash wells three times with TPBS.
3. Apply 50-200 μl of approximay 2-20 μg/ml biotinylated lectin in PBS to the wells and incubate
for 30 minutes at room temperature. Wash wells three times with TPBS.

4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
wells and incubate for 30 minutes at room temperature. Wash wells three times with TPBS.
5. Apply an appropriate non-precipitating substrate for the enzyme system used in step 4. For
peroxidase, ABTS （Cat. No. SK-4500） is recommended; for alkaline phophatase, pNPP （Cat. No.
SK-5900）.
6. Quantify the colored reaction product by spectrophotometry.
Western Blot:
1. Perform electrophoresis and transfer proteins to a membrane according to standard procedures.
2. Block non-specific binding by incubating the membrane in Carbo-Free™ Blocking Solution （Cat.
No. SP-5040） for 30 minutes at room temperature. Use a sufficient volume to compley cover
the membrane.
3. Incubate membrane in PBS containing approximay 2-20 μg/ml biotinylated lectin for 30 minutes
at room temperature. Wash with TPBS （PBS +0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Incubate the
membrane in the reagent for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate substrate for the enzyme system used in step 4. For peroxidase, DuoLuX™
Chemiluminescent/Fluorescent Substrate for Peroxidase （Cat. No. SK-6604） or ImmPACT™ DAB
（Cat. No. SK-4105） are recommended; for alkaline phosphatase, Chemiluminescent/Fluorescent
Substrate for Alkaline Phosphatase （Cat. No. SK-6605） or BCIP/NBT （Cat. No. SK-5400） are
recommended.
Negative Controls
Negative controls should be run in parallel in each of the above described methodologies to validate
binding results. When applying lectins, one of the most appropriate negative controls is to preabsorb
the lectin with a concentration of a defined sugar, with which, the lectin has a known high affinity.
Vector Labs offers a series of sugars that are intended for such a purpose.
The lectin is diluted to a suitable working concentration in a solution containing approximay
200 mM to 500 mM of the sugar. This mixture is left to bind at room temperature for 30 to 60 min.
Following this absorption incubation, the mixture is substituted into the procedure in place of the unabsorbed
lectin and incubated under the same conditions. The subsequent detection procedure is followed
as for the test method. In most cases the vast majority of lectin binding to the tissue section （membrane
blot, etc.） will be eliminated. Some trace binding to the section （blot etc） may still be present under
these conditions and probably indicates presence of secondary or tertiary sugar preferences. These negative
control results should be compared with the test results to determine specificity of binding

VECTOR 生物素苋尾状凝集素（ACL，ACA） BIOTIN-ACLB-1255

发表于由

VECTOR 生物素苋尾状凝集素（ACL，ACA） BIOTIN-ACL

  • 产品型号：  B-1255
  • 简单描述
  • VECTOR 生物素苋尾状凝集素（ACL，ACA） BIOTIN-ACLBiotinylated Amaranthus Caudatus Lectin （ACL, ACA）Detection of Glycoproteins using Lectins in Histochemistry,ELISA, and Western Blot Applications
详细介绍

VECTOR 生物素苋尾状凝集素（ACL，ACA） BIOTIN-ACL

The following protocols offer guidelines for assay development using lectin-based detection of glycoproteins
present in tissue sections, adsorbed onto microtiter plates, or transferred from electrophoretic
gels onto nitrocellulose or PVDF membranes.
Histochemistry:
1a. Staining procedure for paraffin sections: Deparaffinize and hydrate tissue sections through
xylenes or other clearing agents and graded alcohol series and rinse for 5 minutes in tap water.
If required, retrieve antigens using the Antigen Unmasking Solution （H-3300 or H-3301）.
1b. Staining procedure for frozen sections: Air dry sections. Immediay before staining, fix
sections with acetone. Transfer slices to buffer. If endogenous enzyme activities are present,
inactivate using appropriate methods.
2. Perform Streptavidin/Biotin blocking if required following kit instructions （SP-2002）. Do not
use SP-2001. Block non-specific binding by incubating section with Carbo-Free™ Blocking
Solution （Cat. No. SP-5040） for 30 minutes at room temperature. Blot excess blocking solution
from the sections.
3. Apply biotinylated lectin at approximay 2-20 μg/ml in PBS （10 mM sodium phosphate, 150
mM NaCl, pH 7.4） to the sections and incubate for 30 minutes at room temperature. Wash with
TPBS （PBS + 0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
sections and incubate for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate precipitating substrate for the enzyme system used in step 4. For peroxidase,
ImmPACT™ DAB （Cat. No. SK-4105） is recommended; for alkaline phosphatase, Vector® Red
（Cat. No. SK-5100）. Rinse in tap water.
6. Counterstain （optional）, clear and mount. For galactose or GalNAc-specific lectins avoid mounting
in glycerol-based mounting media.
VECTOR 生物素苋尾状凝集素（ACL，ACA） BIOTIN-ACL

ELISA:
1. Adsorb target protein to microtiter plate by placing 50-200 μl of approximay 3 μg/ml glycoprotein
solution into the desired wells. Some wells may be left untreated as negative controls. Incubate at
37 ºC for 1 hour. Wash wells three times with TPBS （PBS + 0.05% Tween™20）.
2. Block non-specific binding by filling each well to the brim with Carbo-Free™ Blocking Solution
（Cat. No. SP-5040） for 30 minutes at room temperature. Wash wells three times with TPBS.
3. Apply 50-200 μl of approximay 2-20 μg/ml biotinylated lectin in PBS to the wells and incubate
for 30 minutes at room temperature. Wash wells three times with TPBS.

4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Apply to the
wells and incubate for 30 minutes at room temperature. Wash wells three times with TPBS.
5. Apply an appropriate non-precipitating substrate for the enzyme system used in step 4. For
peroxidase, ABTS （Cat. No. SK-4500） is recommended; for alkaline phophatase, pNPP （Cat. No.
SK-5900）.
6. Quantify the colored reaction product by spectrophotometry.
Western Blot:
1. Perform electrophoresis and transfer proteins to a membrane according to standard procedures.
2. Block non-specific binding by incubating the membrane in Carbo-Free™ Blocking Solution （Cat.
No. SP-5040） for 30 minutes at room temperature. Use a sufficient volume to compley cover
the membrane.
3. Incubate membrane in PBS containing approximay 2-20 μg/ml biotinylated lectin for 30 minutes
at room temperature. Wash with TPBS （PBS +0.05% Tween™20）.
4. Prepare VECTASTAIN®
® ABC （peroxidase, Cat. No. PK-6100） or VECTASTAIN® ABC-AP
（alkaline phosphatase, Cat. No. AK-5000） reagents according to the kit instructions. Incubate the
membrane in the reagent for 30 minutes at room temperature. Wash with TPBS.
5. Apply an appropriate substrate for the enzyme system used in step 4. For peroxidase, DuoLuX™
Chemiluminescent/Fluorescent Substrate for Peroxidase （Cat. No. SK-6604） or ImmPACT™ DAB
（Cat. No. SK-4105） are recommended; for alkaline phosphatase, Chemiluminescent/Fluorescent
Substrate for Alkaline Phosphatase （Cat. No. SK-6605） or BCIP/NBT （Cat. No. SK-5400） are
recommended.
Negative Controls
Negative controls should be run in parallel in each of the above described methodologies to validate
binding results. When applying lectins, one of the most appropriate negative controls is to preabsorb
the lectin with a concentration of a defined sugar, with which, the lectin has a known high affinity.
Vector Labs offers a series of sugars that are intended for such a purpose.
The lectin is diluted to a suitable working concentration in a solution containing approximay
200 mM to 500 mM of the sugar. This mixture is left to bind at room temperature for 30 to 60 min.
Following this absorption incubation, the mixture is substituted into the procedure in place of the unabsorbed
lectin and incubated under the same conditions. The subsequent detection procedure is followed
as for the test method. In most cases the vast majority of lectin binding to the tissue section （membrane
blot, etc.） will be eliminated. Some trace binding to the section （blot etc） may still be present under
these conditions and probably indicates presence of secondary or tertiary sugar preferences. These negative
control results should be compared with the test results to determine specificity of binding

 

3´-脱硫生物素标记 GTP 货 号 #N0761SNEB酶试剂 New England Biolabs

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产品资料 – RNA 试剂 – RNA 合成

3´-脱硫生物素标记 GTP                              收藏

货 号
规 格
价 格(元)
北京库存
上海库存
广州库存
成都库存
苏州库存

#N0761S
0.5 µmol
3,929.00
有
无
无
无
无

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  • single letter code

概述

Cappable-seq 是一个由 NEB 开发的、用于直接富集初级转录本的 5´ 末端的方法。该方法可在单碱基水平上确定转录起始位点。使用牛痘病毒加帽系统（NEB #M2080）和 3´ –脱硫生物素标记 GTP 对磷酸化的 RNA 5´ 末端进行加帽。随后初级转录本吸附到亲水性链霉亲和素磁珠（NEB #S1421）上，再用游离生物素进行洗涤和洗脱。  

质保声明

3´ –脱硫生物素标记 GTP 中无 RNase 和切刻酶污染。  

参考文献

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