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Shop By Category | Dna & Protein Electrophoresis

DNA & Protein ElectrophoresisWhether you need to analyze PCR results or produce a large quantity of purified proteins, GoldBio offers the tools necessary for DNA and protein techniques. GoldBio’s inventory includes a quality selection of agaroses, ready-to-use loading dyes and buffers, DNA and protein ladders, Coomassie stains, and more. With GoldBio’s low prices and first-rate products, we have everything needed to put your research into action.
Displaying 1-20 of 53 results.
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1 kb DNA Ladder
Catalog ID
Size
Pricing
More Info
1 kb DNA Ladder product image
D010-500
1x500 μl
$ 44.00
D010-1000
2x500 μl
$ 82.00
D010-1500
3x500 μl
$ 115.00
D010-2000
4x500 μl
$ 152.00
D010-2500
5x500 μl
$ 174.00
D010-3000
6x500 μl
$ 190.00
Description

A unique combination of a number of proprietary plasmids digested with appropriate restriction enzymes and PCR products to yield 13 fragments, suitable for use as molecular weight standards for agarose gel electrophoresis. The DNA includes fragments ranging from 250-10,000 base pairs. The 1K and 3K bands have increased intensity to serve as reference points. The approximate mass of DNA in each band is provided (0.5 μg a load) for approximating the mass of DNA in comparably intense samples. The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

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Specifications
CAS Number
Technical Resources
1 kb PLUS™ DNA Ladder
Catalog ID
Size
Pricing
More Info
1 kb PLUS™ DNA Ladder product image
D011-500
1x500 μl
$ 55.00
D011-1000
2x500 μl
$ 103.00
D011-1500
3x500 μl
$ 147.00
D011-2000
4x500 μl
$ 185.00
D011-2500
5x500 μl
$ 217.00
D011-3000
6x500 μl
$ 239.00
Description

The 1 kb PLUS™ is composed of 14 individual DNA fragments: 25K, 10K, 8K, 6K, 5K, 4K, 3K, 2.5K, 2K, 1500, 1000, 750, 500, 250 base pairs. This product contains two enhanced bands (3K and 1K bp) for easy reference. The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

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Specifications
CAS Number
Technical Resources
100 bp DNA Ladder
Catalog ID
Size
Pricing
More Info
100 bp DNA Ladder product image
D001-500
1x500 μl
$ 44.00
D001-1000
2x500 μl
$ 82.00
D001-1500
3x500 μl
$ 115.00
D001-2000
4x500 μl
$ 152.00
D001-2500
5x500 μl
$ 174.00
D001-3000
6x500 μl
$ 190.00
Description

A unique combination of PCR products and a number of proprietary plasmids digested with appropriate restriction enzymes to yield 11 fragments, suitable for use as molecular weight standards for agarose gel electrophoresis. The DNA includes fragments ranging from 100-1,500 base pairs. The 500 and 1,500 base pair bands have increased intensity to serve as reference points. The approximate mass of DNA in each band is provided (0.5 μg a load) for approximating the mass of DNA in comparably intense samples of similar size. The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

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Specifications
CAS Number
Technical Resources
100 bp PLUS™ DNA Ladder
Catalog ID
Size
Pricing
More Info
100 bp PLUS™ DNA Ladder product image
D003-500
1x500 μl
$ 44.00
D003-1000
2x500 μl
$ 82.00
D003-1500
3x500 μl
$ 120.00
D003-2000
4x500 μl
$ 152.00
D003-2500
5x500 μl
$ 174.00
D003-3000
6x500 μl
$ 190.00
Description

A unique combination of PCR products and a number of proprietary plasmids digested with appropriate restriction enzymes to yield 12 fragments, suitable for use as molecular weight standards for agarose gel electrophoresis. The DNA includes fragments ranging from 100-3,000 base pairs. The 500 and 1,500 base pair bands have increased intensity to serve as reference points. The approximate mass of DNA in each band is provided (0.5 μg a load) for approximating the mass of DNA in comparably intense samples of similar size.The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

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Specifications
CAS Number
Technical Resources
50 bp DNA Ladder
Catalog ID
Size
Pricing
More Info
50 bp DNA Ladder product image
D100-500
1x500 μl
$ 55.00
D100-1000
2x500 μl
$ 103.00
D100-1500
3x500 μl
$ 147.00
D100-2000
4x500 μl
$ 185.00
D100-2500
5x500 μl
$ 217.00
D100-3000
6x500 μl
$ 239.00
Description

A unique combination of PCR products and a number of proprietary plasmids digested with appropriate restriction enzymes to yield 17 fragments, suitable for gel electrophoresis. The DNA includes fragments ranging from 50-1,500 base pairs. The 200 and 500 base pair bands have increased intensity to serve as reference points. The approximate mass of DNA in each band is provided (0.5 g a load) for approximating the mass of DNA in comparably intense samples of a similar size.The ladder is ready-to-use, and is premixed with loading buffer dye for direct loading on gel.

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Specifications
CAS Number
Technical Resources
6X Blue Loading Dye
Catalog ID
Size
Pricing
More Info
6X Blue Loading Dye product image
L002-5
5 ml
$ 25.00
L002-10
2 x 5 ml
$ 45.00
L002-20
4 x 5 ml
$ 85.00
L002-50
10 x 5 ml
$ 200.00
Description
GoldBio's 6× Blue DNA Loading Dye is pre-mixed buffer designed for tracking the DNA sample during the electrophoresis on agarose or polyacrylamide gels. It contains two dyes (Xylene cyanol FF and Bromophenol blue) for tracking the DNA migration. The Xylene cyanol FF and Bromophenol blue migrate at approximately 4,000 bp and 500 bp on a standard 1% TAE agarose gel respectively (800 bp and 150 bp on a 2% TAE agarose gel respectively). The included glycerol keeps the DNA at the bottom of the well and the presence of EDTA chelates divalent metal View product page →
Specifications
CAS Number
Technical Resources
6X GelRed™ Prestain Loading Buffer with Blue Tracking Dyes
Catalog ID
Size
Pricing
More Info
6X GelRed™ Prestain Loading Buffer with Blue Tracking Dyes product image
G-730-1
1 ml
$ 76.00
Description
GelRed™ is an ultra-sensitive, extremely stable and environmentally safe fluorescent nucleic acid dye designed to replace the highly toxic ethidium bromide (EtBr). 6X GelRed™ Prestain Loading Buffers are gel loading buffers containing density agents, tracking dyes, and GelRed dye. The 6X prestain loading buffer is added to samples in place of gel loading buffer and eliminates the need to add fluorescent DNA dye to the agarose gel during casting. 6X GelRed™ Prestain Loading Buffer with Blue Tracking Dyes contains two blue electrophoresis tracking dyes that run at approximately 1.5 kb and 200 bp in a 1% agarose gel.  For smaller View product page →
Specifications

No specifications are available for this product.

Technical Resources
6X GelRed™ Prestain Loading Buffer with Orange Tracking Dye
Catalog ID
Size
Pricing
More Info
6X GelRed™ Prestain Loading Buffer with Orange Tracking Dye product image
G-735-1
1 ml
$ 76.00
Description
GelRed™ is an ultra-sensitive, extremely stable and environmentally safe fluorescent nucleic acid dye designed to replace the highly toxic ethidium bromide (EtBr). 6X GelRed™ Prestain Loading Buffers are gel loading buffers containing density agents, tracking dyes, and GelRed dye. The 6X prestain loading buffer is added to samples in place of gel loading buffer and eliminates the need to add fluorescent DNA dye to the agarose gel during casting.6X GelRed™ Prestain Loading Buffer with Orange Tracking Dye contains an orange electrophoresis tracking dyes that run at approximately 50 bp in a 1% agarose gel. For larger tracking dyes, see Catalog View product page →
Specifications

No specifications are available for this product.

Technical Resources
6X Green Loading Dye
Catalog ID
Size
Pricing
More Info
6X Green Loading Dye product image
L001-5
5 ml
$ 25.00
L001-10
2 x 5 ml
$ 45.00
L001-20
4 x 5 ml
$ 85.00
L001-50
10 x 5 ml
$ 200.00
Description
GoldBio's 6× Green DNA Loading Dye is a pre-mixed buffer for tracking DNA samples during the electrophoresis on agarose or polyacrylamide gels. It contains two dyes (Xylene cyanol FF and Orange G) for tracking the DNA migration. The Xylene cyanol FF and Orange G migrate at approximately 4,000 bp and 50 bp on a standard 1% TAE agarose gel respectively (800 bp and 30 bp on a 2% TAE agarose gel respectively). The included glycerol keeps the DNA at the bottom of the well and the presence of EDTA chelates divalent metal ions to View product page →
Specifications
CAS Number
Technical Resources
Agarose LE (Molecular Biology Grade)
Catalog ID
Size
Pricing
More Info
Agarose LE (Molecular Biology Grade) product image
A-201-100
100 g
$ 86.00
A-201-500
500 g
$ 318.00
A-201-1000
1 kg
$ 530.00
Description

Agarose LE (Low Electroendosmosis) is Molecular Biology Grade and used for the superior separation of nucleic acids and for the maximum crisp resolution of bands.

GoldBio Agarose LE is refined in an advanced process that excludes the use of organic solvents. The result is a cleaner end-product with significantly reduced environmental impact. The agarose can be used for analyses of nucleic acids from 50 bp to 25 kbp, protein electrophoresis and various blotting protocols.

The low EEO of the agarose promotes increased electrophoretic mobility, yielding improved resolution and shorter run times. This also allows macromolecules and larger particles (subcellular fragments, viruses, etc.) to migrate more freely through the gel matrix. The consistently low EEO reduces band distortion (caused by counterflow) that can result from the presence of excessive sulfate-rich negative ions.

Agarose is a natural product that forms an inert matrix used in electrophoresis, chromatography and other molecular biology and biochemistry techniques. Likewise, it is neutral and easily derivatizable, so it is easy to bind to its structure proteins like enzymes, antigens or antibodies. Toxicity absence makes working with agarose very convenient.

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Specifications
CAS Number 9012-36-6
Technical Resources
Bicine
Catalog ID
Size
Pricing
More Info
Bicine product image
B-785-25
25 g
$ 17.00
B-785-50
50 g
$ 22.00
B-785-100
100 g
$ 30.00
B-785-500
500 g
$ 120.00
B-785-1
1 kg
$ 199.00
Description
Bicine is a buffering agent used in biochemistry and molecular biology that was selected and described by Good et al. It is a zwitterionic, bis(2-hydroxyethyl)amine buffer that is useful for a pH range of 7.6 – 9.0. It is commonly used in protein crystallization, in the study of enzymatic reactions, and for electrophoresis. It is used in thin layer ion exchange chromatography for protein resolution, as well as a multiphasic buffer system for SDS-PAGE of proteins. It is soluble in water at 0°C up to 1.1 M. Bicine forms a complex with most common metals so stability constants and concentrations View product page →
Specifications
CAS Number 150-25-4
Technical Resources
Bis-Tris
Catalog ID
Size
Pricing
More Info
Bis-Tris product image
B-020-100
100 g
$ 51.00
B-020-250
250 g
$ 78.00
B-020-500
500 g
$ 119.00
B-020-1
1 kg
$ 205.00
Description

Bis-Tris, also known as bis-Tris methane, is a zwitterionic buffering agent used in biochemistry and molecular biology. It is a bis(2-hydroxyethyl)amine and Tris family buffer that is useful for a pH range of 5.8 – 7.2. Bis Tris is a common component of many buffer systems for various types of electrophoresis. Bis-Tris may form a complex with some common metals, such as Cu(II) and Pb(II), and formation constants should be taken into account when using this buffer in a solution containing metal ions. Bis-Tris can be used as a substitute for the highly toxic buffer cacodylate.

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Specifications
CAS Number 6976-37-0
Technical Resources
Blazin' Blue™ Protein Gel Stain
Catalog ID
Size
Pricing
More Info
Blazin' Blue™ Protein Gel Stain product image
P-810-1
1 L
$ 89.00
Description
Blazin' Blue™ Protein Gel Stain is a ready-to-use protein gel staining solution that is a safer and more effective replacement for traditional Coomassie stains. Blazin' Blue™ offers a faster alternative to protein staining (5-60 minutes) in a single step without the need for fixation or washing. Protein bands can be detected through visible blue staining or by near-infrared fluorescence. And since Blazin' Blue™ is aqueous based, there are no hazardous chemicals like methanol or acetic acid to worry about. Blazin' Blue™ Protein Gel Stain is certified under CCR Title 22 as non-toxic to the environment for drain disposal after a View product page →
Specifications

No specifications are available for this product.

Technical Resources
Blazin' Bright™ Luminescent Protein Gel Stain
Catalog ID
Size
Pricing
More Info
Blazin' Bright™ Luminescent Protein Gel Stain product image
P-820-1
1 L
$ 115.00
Description
Blazin' Bright™ Luminescent Protein Gel Stain is a ready-to-use luminescent protein gel staining solution that is a safer and more effective replacement for traditional fluorescent staining. Blazin' Bright™ offers a faster alternative to protein staining (5-60 minutes) in a single step without the need for fixation (destaining is optional). The Blazin' Bright™ gel stains are aqueous based, there are no hazardous chemicals like methanol or acetic acid to worry about. Blazin' Bright™ Protein Gel Stain is certified under CCR Title 22 as non-toxic to the environment for drain disposal after a simple pH neutralization step.Blazin' Bright™ has a detection limit View product page →
Specifications

No specifications are available for this product.

Technical Resources
Blazin' Bright™ Luminescent UV Protein Gel Stain
Catalog ID
Size
Pricing
More Info
Blazin' Bright™ Luminescent UV Protein Gel Stain product image
P-825-1
1 L
$ 155.00
Description
Blazin' Bright™ Luminescent UV Protein Gel Stain is a ready-to-use luminescent protein gel staining solution that is a safer and more effective replacement for traditional fluorescent staining. Gels stained with our Blazin' Bright™ Luminescent UV Protein Gel Stain can be visualized rapidly (5-30 minutes) in a single step without fixation (destaining is optional). The Blazin' Bright™ gel stains are aqueous based, there are no hazardous chemicals like methanol or acetic acid to worry about. Blazin' Bright™ Protein Gel Stain is certified under CCR Title 22 as non-toxic to the environment for drain disposal after a simple pH neutralization step.Blazin' Bright™ View product page →
Specifications

No specifications are available for this product.

Technical Resources
BLUEstain™ 2 Protein ladder, 5-245 kDa
Catalog ID
Size
Pricing
More Info
BLUEstain™ 2 Protein ladder, 5-245 kDa product image
P008-500
1x500 μl
$ 109.00
P008-1000
2x500 μl
$ 212.00
P008-1500
3x500 μl
$ 303.00
P008-2000
4x500 μl
$ 394.00
P008-2500
5x500 μl
$ 478.00
P008-3000
6x500 μl
$ 558.00
Description

The BLUEstain™ 2 Protein ladder is a three-color protein standard with 13 prestained proteins, covering a wide range molecular weights from 3.5 to 245 kDa. Proteins are covalently coupled with a blue chromophore except for two reference bands (one green and one red band at 25 kDa and 75 kDa respectively) when separated on SDS-PAGE (Tris-glycine buffer). 


The BLUEstain™ 2 Protein ladder is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins. The ladder is supplied in gel loading buffer and is ready to use. Do not heat, dilute or add reducing agent before loading.

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Specifications
CAS Number
Technical Resources
BLUEstain™ Protein ladder, 11-245 kDa
Catalog ID
Size
Pricing
More Info
BLUEstain™ Protein ladder, 11-245 kDa product image
P007-500
1x500 μl
$ 109.00
P007-1000
2x500 μl
$ 212.00
P007-1500
3x500 μl
$ 303.00
P007-2000
4x500 μl
$ 394.00
P007-2500
5x500 μl
$ 478.00
P007-3000
6x500 μl
$ 558.00
Description

The BLUEstain™ Protein ladder is a three-color protein standard with 12 prestained proteins covering a wide range molecular weights from 10 to 245 kDa. Proteins are covalently coupled with a bluechromophore except for two reference bands (one green and one red band at 25 kDa and 75 kDa respectively) when separated on SDS-PAGE (Tris-glycine buffer). The BLUEstain™ Protein ladder, is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins. The ladder is supplied in gel loading buffer and is ready to use.

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Specifications
CAS Number
Technical Resources
Boric Acid, ACS Grade
Catalog ID
Size
Pricing
More Info
Boric Acid, ACS Grade product image
B-030-500
500 g
$ 15.00
B-030-1
1 kg
$ 25.00
B-030-5
5 kg
$ 110.00
Description

Boric acid is commonly used for the preparation of buffers such as Tris-Borate-EDTA (TBE). Borate buffers have been used in capillary and gel electrophoresis for separating proteins and nucleic acids. The useful buffering range of boric acid is pH 8.2-10.1. In a basic solution, the salt of boric acid forms complex equilibria, with the tetraborate ion (B4O72-) being the most predominant species present. Boric acid is used in catalytic amounts to promote amidation between carboxylic acids and amines. It is capable of forming a complex with various carbohydrates, as well as with pyridine nucleotides, such as NAD+.

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Specifications
CAS Number 10043-35-3
Technical Resources
Boric Acid, Biotechnology Grade
Catalog ID
Size
Pricing
More Info
Boric Acid, Biotechnology Grade product image
B-031-500
500 g
$ 18.00
B-031-1
1 kg
$ 27.00
B-031-5
5 kg
$ 120.00
Description

Boric acid is commonly used for the preparation of buffers such as Tris-Borate-EDTA (TBE). Borate buffers have been used in capillary and gel electrophoresis for separating proteins and nucleic acids. The useful buffering range of boric acid is pH 8.2-10.1. In a basic solution, the salt of boric acid forms complex equilibria, with the tetraborate ion (B4O72-) being the most predominant species present. Boric acid is used in catalytic amounts to promote amidation between carboxylic acids and amines. It is capable of forming a complex with various carbohydrates, as well as with pyridine nucleotides, such as NAD+.

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Specifications
CAS Number 10043-35-3
Technical Resources
Bromophenol Blue Free Acid, ACS Grade
Catalog ID
Size
Pricing
More Info
Bromophenol Blue Free Acid, ACS Grade product image
B-092-5
5 g
$ 26.00
B-092-25
25 g
$ 33.00
B-092-100
100 g
$ 81.00
Description
Bromophenol blue is a dye for tracking proteins and nucleic acids in gel electrophoresis. Bromophenol blue migrates at about the same rate as ~500bp DNA in a 1% agarose gel and at the buffer front in protein polyacrylamide gels.Product Specifications Bromophenol Blue, Free Acid, ACSFormula: C19H10Br4O5SMW: 669.96 g/mol Storage/Handling: Store in a dry and well-ventilated place. Product is almost insoluble in aqueous solution, but soluble in ethanol.PubChem Chemical ID: 8272 View product page →
Specifications
CAS Number 115-39-9
Technical Resources
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