Protein Expression & Purification

Proteins are fundamental macromolecules found in every biological system and form the basis of many fields of work from research into drug creation to industrial applications like fermentation. GoldBio protein products are ideal for every step of your protein synthesis. Our reagents and tools are of the highest quality available at a fraction of the prices of other vendors, so you can be assured that your research yields confident results without compromising your budget.
Showing 1-20 of 122 items.

1 kb DNA Ladder

1 kb DNA Ladder
Catalog ID Size Pricing
D010-500 500 µL $ 46.00
D010-1000 2x500 µL $ 86.00
D010-1500 3x500 µL $ 121.00
D010-2000 4x500 µL $ 161.00
D010-2500 5x500 µL $ 184.00
D010-3000 6x500 µL $ 201.00

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.

Product Specifications

Catalog ID D010
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
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D010-500 500 µL $ 46.00
D010-1000 2x500 µL $ 86.00
D010-1500 3x500 µL $ 121.00
D010-2000 4x500 µL $ 161.00
D010-2500 5x500 µL $ 184.00
D010-3000 6x500 µL $ 201.00

1 kb PLUS™ DNA Ladder

Catalog ID Size Pricing
D011-500 500 µL $ 58.00
D011-1000 2x500 µL $ 109.00
D011-1500 3x500 µL $ 155.00
D011-2000 4x500 µL $ 196.00
D011-2500 5x500 µL $ 230.00
D011-3000 6x500 µL $ 253.00

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.

Product Specifications

Catalog ID D011
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
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D011-500 500 µL $ 58.00
D011-1000 2x500 µL $ 109.00
D011-1500 3x500 µL $ 155.00
D011-2000 4x500 µL $ 196.00
D011-2500 5x500 µL $ 230.00
D011-3000 6x500 µL $ 253.00

1,10-Phenanthroline monohydrate

Catalog ID Size Pricing
P-980-10 10 g $ 42.00
P-980-25 25 g $ 75.00
P-980-50 50 g $ 133.00
P-980-100 100 g $ 239.00
P-980-250 250 g $ 345.00

Description

No description available

Product Specifications

Catalog ID P-980
CAS # 5144-89-8
MW 198.22 g/mol
Storage/Handling Store desiccated under inert gas at room temperature.
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P-980-10 10 g $ 42.00
P-980-25 25 g $ 75.00
P-980-50 50 g $ 133.00
P-980-100 100 g $ 239.00
P-980-250 250 g $ 345.00

1,2-Dipalmitoyl-rac-glycero-3-phosphocholine

Catalog ID Size Pricing
D-226-500 500 mg $ 155.00
D-226-1 1 g $ 290.00
D-226-2.5 2.5 g $ 677.00
D-226-5 5 g $ 1,265.00

Description

No description available

Product Specifications

Catalog ID D-226
CAS # 2644-64-6
MW 734.04 g/mol
Storage/Handling Store at -20°C. Protect from light.
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D-226-500 500 mg $ 155.00
D-226-1 1 g $ 290.00
D-226-2.5 2.5 g $ 677.00
D-226-5 5 g $ 1,265.00

1,2-Hexadecyliden-rac-glycero-3-phosphocholine

Catalog ID Size Pricing
H-020-100 100 mg $ 306.00
H-020-250 250 mg $ 638.00
H-020-500 500 mg $ 1,062.00
H-020-1 1 g $ 1,770.00

Description

No description available

Product Specifications

Catalog ID H-020
CAS # 68124-68-5
MW 479.63 g/mol
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H-020-100 100 mg $ 306.00
H-020-250 250 mg $ 638.00
H-020-500 500 mg $ 1,062.00
H-020-1 1 g $ 1,770.00

1,3-Dimyristoyl-2-O-benzylglycerol

Catalog ID Size Pricing
D-535-1 1 g $ 212.00
D-535-2.5 2.5 g $ 483.00
D-535-5 5 g $ 879.00
D-535-10 10 g $ 1,598.00

Description

No description available

Product Specifications

Catalog ID D-535
CAS # 1135371-38-8
MW 602.92 g/mol
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D-535-1 1 g $ 212.00
D-535-2.5 2.5 g $ 483.00
D-535-5 5 g $ 879.00
D-535-10 10 g $ 1,598.00

100 bp DNA Ladder

Catalog ID Size Pricing
D001-500 500 µL $ 46.00
D001-1000 2x500 µL $ 86.00
D001-1500 3x500 µL $ 121.00
D001-2000 4x500 µL $ 161.00
D001-2500 5x500 µL $ 184.00
D001-3000 6x500 µL $ 201.00

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.

Product Specifications

Catalog ID D001
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
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D001-500 500 µL $ 46.00
D001-1000 2x500 µL $ 86.00
D001-1500 3x500 µL $ 121.00
D001-2000 4x500 µL $ 161.00
D001-2500 5x500 µL $ 184.00
D001-3000 6x500 µL $ 201.00

100 bp PLUS™ DNA Ladder

Catalog ID Size Pricing
D003-500 500 µL $ 46.00
D003-1000 2x500 µL $ 86.00
D003-1500 3x500 µL $ 127.00
D003-2000 4x500 µL $ 161.00
D003-2500 5x500 µL $ 184.00
D003-3000 6x500 µL $ 201.00

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.

Product Specifications

Catalog ID D003
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
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D003-500 500 µL $ 46.00
D003-1000 2x500 µL $ 86.00
D003-1500 3x500 µL $ 127.00
D003-2000 4x500 µL $ 161.00
D003-2500 5x500 µL $ 184.00
D003-3000 6x500 µL $ 201.00

4-Nitrophenyl phosphate, disodium salt hexahydrate

Catalog ID Size Pricing
N-380-50 50 g $ 74.00
N-380-100 100 g $ 126.00
N-380-250 250 g $ 279.00
N-380-500 500 g $ 475.00

Description

No description available

Product Specifications

Catalog ID N-380
CAS # 333338-18-4
MW 371.15 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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N-380-50 50 g $ 74.00
N-380-100 100 g $ 126.00
N-380-250 250 g $ 279.00
N-380-500 500 g $ 475.00

5-ethynyl-2’-deoxyuridine (5-EdU)

Catalog ID Size Pricing
E-980-100 100 mg $ 63.00
E-980-250 250 mg $ 105.00
E-980-500 500 mg $ 159.00
E-980-1 1 g $ 239.00

Description

No description available

Product Specifications

Catalog ID E-980
CAS # 61135-33-9
MW 252.22 g/mol
Storage/Handling Store desiccated at -20°C.
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E-980-100 100 mg $ 63.00
E-980-250 250 mg $ 105.00
E-980-500 500 mg $ 159.00
E-980-1 1 g $ 239.00

5-Fluoroorotic acid monohydrate (5-FOA)

Catalog ID Size Pricing
F-230-2.5 2.5 g $ 58.00
F-230-5 5 g $ 110.00
F-230-10 10 g $ 184.00
F-230-25 25 g $ 338.00

Description

5-Fluoroorotic Acid (5-FOA) is widely used in the field of yeast molecular genetics. The toxicity of 5-FOA to yeast cells with a functioning URA3 gene which encodes orotidine-5′-P decarboxylase (OMP decarboxylase), makes it especially useful for the selection and identification of mutant yeast strains. 5-FOA is most often applied with Saccharomyces cerevisiae (URA3), although it has been used in other strains including Schizosaccharomyces pombe (URA4 and URA5), Candida albicans (URA3) and the bacterium E. coli (pyrF). The use of 5-FOA in the yeast 2-hybrid system allows for the construction of activation domain hybrid libraries to identify protein-protein interactions.

Product Specifications

Catalog ID F-230
CAS # 220141-70-8
MW 192.10 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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F-230-2.5 2.5 g $ 58.00
F-230-5 5 g $ 110.00
F-230-10 10 g $ 184.00
F-230-25 25 g $ 338.00

50 bp DNA Ladder

50 bp DNA Ladder
Catalog ID Size Pricing
D100-500 500 µL $ 58.00
D100-1000 2x500 µL $ 109.00
D100-1500 3x500 µL $ 155.00
D100-2000 4x500 µL $ 196.00
D100-2500 5x500 µL $ 230.00
D100-3000 6x500 µL $ 253.00

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.

Product Specifications

Catalog ID D100
Storage/Handling Store at room temperature for 6 months. Store at -20°C for 24 months.
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D100-500 500 µL $ 58.00
D100-1000 2x500 µL $ 109.00
D100-1500 3x500 µL $ 155.00
D100-2000 4x500 µL $ 196.00
D100-2500 5x500 µL $ 230.00
D100-3000 6x500 µL $ 253.00

AEBSF

Catalog ID Size Pricing
A-540-500 500 mg $ 50.00
A-540-1 1 g $ 91.00
A-540-2.5 2.5 g $ 200.00
A-540-5 5 g $ 299.00
A-540-10 10 g $ 541.00
A-540-25 25 g $ 1,219.00

Description

AEBSF is an irreversible serine protease inhibitor. AEBSF has been shown to inhibit trypsin, chymotrypsin, plasmin, kallikrein and thrombin. It inhibits by acylation of the active site of the enzyme. As an alternative to PMSF and DFP, AEBSF offers lower toxicity, improved solubility in water and improved stability in aqueous solutions. AEBSF has been used in cell culture in concentrations of up to 0.25 mM. Aqueous solutions are stable between pH 5-6; limited stability above pH 7.5.

Product Specifications

Catalog ID A-540
CAS # 30827-99-7
MW 239.69 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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A-540-500 500 mg $ 50.00
A-540-1 1 g $ 91.00
A-540-2.5 2.5 g $ 200.00
A-540-5 5 g $ 299.00
A-540-10 10 g $ 541.00
A-540-25 25 g $ 1,219.00

Agarose LE (Molecular Biology Grade)

Catalog ID Size Pricing
A-201-100 100 g $ 92.00
A-201-500 500 g $ 338.00
A-201-1000 1 kg $ 562.00

Description

Agarose LE (Low Electroendosmosis) is Molecular Biology Grade and is specifically designed for the superior separation of nucleic acids, with maximally crisp band resolution, and is also ideal for cloning and cloning related experiments.

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.

Product Specifications

Catalog ID A-201
CAS # 9012-36-6
Storage/Handling Store at room temperature.
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A-201-100 100 g $ 92.00
A-201-500 500 g $ 338.00
A-201-1000 1 kg $ 562.00

Ampicillin (Sodium), USP Grade

Catalog ID Size Pricing
A-301-5 5 g $ 23.00
A-301-10 10 g $ 34.00
A-301-25 25 g $ 46.00
A-301-100 100 g $ 172.00
A-301-500 500 g $ 822.00

Description

Ampicillin sodium is a member of the extended-spectrum β-lactam family and similar in structure to penicillin. It is used in the selection of antibiotic cell hybrids and has a high rate of action against many gram-negative bacterial strains. Ampicillin sodium targets non-ESBL (Extended Spectrum β-lactamase) bacteria including Staphylococcus and Streptococcus species and medically important enteric pathogens such as Shigella and Salmonella. It has been found to be effective against certain β-lactam sensitive VRE or vancomycin resistant Enterococcus species. Resistance to ampicillin is routinely utilized as a selectable marker to confirm successful cell transformation. Ampicillin Sodium is freely soluble in water.

Product Specifications

Catalog ID A-301
CAS # 69-52-3
MW 371.39 g/mol
Storage/Handling Store desiccated at -20°C.
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A-301-5 5 g $ 23.00
A-301-10 10 g $ 34.00
A-301-25 25 g $ 46.00
A-301-100 100 g $ 172.00
A-301-500 500 g $ 822.00

Aprotinin

Catalog ID Size Pricing
A-655-25 25 mg $ 46.00
A-655-100 100 mg $ 115.00

Description

Aprotinin is a monomeric globular polypeptide derived from bovine lung tissue. It consists of a chain of 58 amino acids that fold into a stable, compact tertiary structure of the 'small SS-rich" type, containing 3 disulfides, a twisted β-hairpin and a C-terminal α-helix.

Aprotinin inhibits several serine proteases, specifically trypsin, chymotrypsin, plasmin and kallikrein. Its action on kallikrein leads to the inhibition of the formation of factor XIIa. Binding is reversible with most aprotinin-protease complexes dissociating at pH >10 or < 3. Aprotinin is freely soluble in water (>10 mg/ml) as well as low ionic strength aqueous buffers.

Product Specifications

Catalog ID A-655
CAS # 9087-70-1
MW 6511.44 g/mol
Storage/Handling Store at 4°C.
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A-655-25 25 mg $ 46.00
A-655-100 100 mg $ 115.00

Asunaprevir

Catalog ID Size Pricing
A-820-10 10 mg $ 265.00
A-820-25 25 mg $ 530.00

Description

No description available

Product Specifications

Catalog ID A-820
CAS # 630420-16-5
MW 748.28 g/mol
Storage/Handling Store at -20°C.
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A-820-10 10 mg $ 265.00
A-820-25 25 mg $ 530.00

Bacterial Cell Lysis Buffer

Catalog ID Size Pricing
GB-177-100 100 mL $ 58.00
GB-177-500 500 mL $ 113.00
GB-176-100 100 Preps $ 165.00
GB-176-250 250 Preps $ 289.00
GB-176-500 500 Preps $ 533.00

Description

No description available

Product Specifications

Catalog ID GB-177
Storage/Handling Store at 4°C. Do NOT freeze.
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GB-177-100 100 mL $ 58.00
GB-177-500 500 mL $ 113.00
GB-176-100 100 Preps $ 165.00
GB-176-250 250 Preps $ 289.00
GB-176-500 500 Preps $ 533.00

BCIP

Catalog ID Size Pricing
B-500-1 1 g $ 63.00
B-500-10 10 g $ 272.00
B-500-25 25 g $ 675.00
B-500-50 50 g $ 1,281.00

Description

BCIP is a white to off-white powder that is used as a substrate for visualization of alkaline phosphatase. The end product is insoluble and purple when used with nitroblue tetrazolium. This final product can be visually detected. BCIP is DMF soluble.

Product Specifications

Catalog ID B-500
CAS # 6578-06-9
MW 433.63 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-500-1 1 g $ 63.00
B-500-10 10 g $ 272.00
B-500-25 25 g $ 675.00
B-500-50 50 g $ 1,281.00

Benzamidine hydrochloride monohydrate

Catalog ID Size Pricing
B-050-100 100 g $ 63.00
B-050-500 500 g $ 225.00
B-050-1 1 kg $ 375.00
B-050-2.5 2.5 kg $ 773.00

Description

Benzamidine hydrochloride monohydrate is an aromatic amidine. It is used in protein extractions as a strong reversible inhibitor of serine proteases such as trypsin, thrombin, plasmin and other trypsin-like proteases. Compared to aprotinin, benzamidine is considered to be just as effective in preventing the degradation of glucogon.

Product Specifications

Catalog ID B-050
CAS # 1670-14-0
MW 174.63 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-050-100 100 g $ 63.00
B-050-500 500 g $ 225.00
B-050-1 1 kg $ 375.00
B-050-2.5 2.5 kg $ 773.00

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