Protein Analysis

There are thousands of different proteins across several different classes in biology, each with a distinct purpose. In your research environment you need tools that help you identify and classify your proteins with confidence. GoldBio’s BLUEstainTM ready-to-use protein ladders offer high band resolution across a wide range of molecular weights, and our electrophoresis gels and dyes like ponceau S help you separate and visualize your protein sample. GoldBio’s commitment to quality and affordability assures you the best products for the best price.

Sub-Categories

Showing 1-4 of 4 items.

BLUEstain™ 2 Protein ladder, 5-245 kDa

Catalog ID Size Pricing
P008-500 500 µL $ 120.00   $ 102.00
P008-1000 2 x 500 μL $ 235.00   $ 200.00
P008-1500 3 x 500 μL $ 345.00   $ 294.00
P008-2000 4 x 500 μL $ 445.00   $ 379.00
P008-2500 5 x 500 μL $ 540.00   $ 459.00
P008-3000 6 x 500 μL $ 625.00   $ 532.00

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.

Product Specifications

Catalog ID P008
Storage/Handling Store at 4°C for 3 months. Store at -20°C for 24 months.
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Quick Add
,
P008-500 500 µL $ 120.00
$ 102.00
P008-1000 2 x 500 μL $ 235.00
$ 200.00
P008-1500 3 x 500 μL $ 345.00
$ 294.00
P008-2000 4 x 500 μL $ 445.00
$ 379.00
P008-2500 5 x 500 μL $ 540.00
$ 459.00
P008-3000 6 x 500 μL $ 625.00
$ 532.00

BLUEstain™ Protein ladder, 11-245 kDa

Catalog ID Size Pricing
P007-500 500 µL $ 120.00   $ 102.00
P007-1000 2 x 500 μL $ 235.00   $ 200.00
P007-1500 3 x 500 μL $ 345.00   $ 294.00
P007-2000 4 x 500 μL $ 445.00   $ 379.00
P007-2500 5 x 500 μL $ 540.00   $ 459.00
P007-3000 6 x 500 μL $ 625.00   $ 532.00

Description

The BLUEstain™ Protein ladder is a three-color protein standard with 12 prestained proteins covering a wide range molecular weights from ~11 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.

Product Specifications

Catalog ID P007
Storage/Handling Store at 4°C for 3 months. Store at -20°C for 24 months.
View
Quick Add
,
P007-500 500 µL $ 120.00
$ 102.00
P007-1000 2 x 500 μL $ 235.00
$ 200.00
P007-1500 3 x 500 μL $ 345.00
$ 294.00
P007-2000 4 x 500 μL $ 445.00
$ 379.00
P007-2500 5 x 500 μL $ 540.00
$ 459.00
P007-3000 6 x 500 μL $ 625.00
$ 532.00

Ponceau S

Catalog ID Size Pricing
P-330-10 10 g $ 29.00
P-330-50 50 g $ 63.00

Description

Ponceau S is the sodium salt of a diazo dye used as a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF. It is often used in the staining of polypeptides to be later blot-sequenced because it does not adversely affect the sequencing of the blotted peptides. The stain is also reversible with water washes, preferable for immunological detection, and can even be completely removed. Ponceau S is a negatively charged stain which binds to positively charged amino acids as well as non-polar regions of proteins. The limit of detection for Ponceau S is ~250 ng of protein.

Product Specifications

Catalog ID P-330
CAS # 6226-79-5
MW 760.57 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at room temperature.
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P-330-10 10 g $ 29.00
P-330-50 50 g $ 63.00

Ponceau S Solution 1 mg/mL

Catalog ID Size Pricing
P-330-SL1 1 L $ 79.00

Description

Ponceau S is the sodium salt of a diazo dye used as a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF.It is often used in the staining of polypeptides to be later blot-sequenced because it does not adversely affect the sequencing of the blotted peptides.The stain is also reversible with water washes, preferable for immunological detection, and can even be completely removed.Ponceau S is a negatively charged stain which binds to positively charged amino acids as well as non-polar regions of proteins. The limit of detection for Ponceau S is ~250 ng of protein.

Product Specifications

Catalog ID P-330-SL
MW 760.57 g/mol
Grade MOLECULAR BIOLOGY GRADE
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Quick Add
,
P-330-SL1 1 L $ 79.00

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