Enzymes, Inhibitors & Substrates

Enzymes are important biological macromolecules that allow for the control of cellular functions and are vital for effective research. Enzyme activity can be slowed or stopped using inhibitors, like Proteinase K or RNase, while substrates like X-Gluc and X-Gal are used in detection and monitoring. D-Luciferin Potassium Salt, our most popular bioluminescent substrate, can be used for in vivo and in vitro imaging. GoldBio knows that having high quality enzyme tools are important to your laboratory, and we are committed to delivering quality products at a fraction of the price.
Showing 221-240 of 240 items.

Taq DNA Polymerase with Dye

There is no image for Taq DNA Polymerase with Dye Taq DNA Polymerase with Dye
Catalog ID Size Pricing
T-516-500 500 Units $ 77.00
T-516-5000 5000 Units $ 520.00

Description

No description available

Product Specifications

Catalog ID T-516
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T-516-500 500 Units $ 77.00
T-516-5000 5000 Units $ 520.00

Taq DNA Polymerase with Dye plus dNTP

There is no image for Taq DNA Polymerase with Dye plus dNTP Taq DNA Polymerase with Dye plus dNTP
Catalog ID Size Pricing
T-517-500 500 Units $ 93.00
T-517-5000 5000 Units $ 623.00

Description

No description available

Product Specifications

Catalog ID T-517
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T-517-500 500 Units $ 93.00
T-517-5000 5000 Units $ 623.00

TMB dihydrochloride

Catalog ID Size Pricing
TMBHCL2 2 g $ 68.00
TMBHCL10 10 g $ 299.00
TMBHCL25 25 g $ 576.00
TMBHCL50 50 g $ 885.00

Description

No description available

Product Specifications

Catalog ID TMBHCL
CAS # 207738-08-7
MW 313.27 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at -20°C. Protect from light.
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TMBHCL2 2 g $ 68.00
TMBHCL10 10 g $ 299.00
TMBHCL25 25 g $ 576.00
TMBHCL50 50 g $ 885.00

TMB, free base

Catalog ID Size Pricing
TMBF10 10 g $ 65.00
TMBF25 25 g $ 153.00
TMBF50 50 g $ 240.00
TMBF100 100 g $ 436.00

Description

No description available

Product Specifications

Catalog ID TMBF
CAS # 54827-17-7
MW 240.35 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at 4°C. Protect from light.
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TMBF10 10 g $ 65.00
TMBF25 25 g $ 153.00
TMBF50 50 g $ 240.00
TMBF100 100 g $ 436.00

Trypsin 1:250

Catalog ID Size Pricing
T-161-25 25 g $ 30.00
T-161-50 50 g $ 48.00
T-161-100 100 g $ 91.00
T-161-250 250 g $ 207.00

Description

No description available

Product Specifications

Catalog ID T-161
CAS # 9002-07-7
Grade TISSUE CULTURE GRADE
Storage/Handling Store at -20°C.
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T-161-25 25 g $ 30.00
T-161-50 50 g $ 48.00
T-161-100 100 g $ 91.00
T-161-250 250 g $ 207.00

Trypsin 1:300

Catalog ID Size Pricing
T-162-25 25 g $ 65.00
T-162-50 50 g $ 125.00
T-162-100 100 g $ 195.00

Description

No description available

Product Specifications

Catalog ID T-162
CAS # 9002-07-7
Grade TISSUE CULTURE GRADE
Storage/Handling Store at -20°C.
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T-162-25 25 g $ 65.00
T-162-50 50 g $ 125.00
T-162-100 100 g $ 195.00

Trypsin >2500 U/mg, USP Grade

Catalog ID Size Pricing
T-160-5 5 g $ 115.00

Description

No description available

Product Specifications

Catalog ID T-160
CAS # 9002-07-7
Storage/Handling Store desiccated at -20°C.
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T-160-5 5 g $ 115.00

Trypsin Inhibitor, Soybean, Purified >10,000 U

There is no image for Trypsin Inhibitor, Soybean, Purified >10,000 U Trypsin Inhibitor, Soybean, Purified >10,000 U
Catalog ID Size Pricing
T-166-100 100 mg $ 75.00
T-166-500 500 mg $ 262.50
T-166-1 1 g $ 472.50

Description

No description available

Product Specifications

Catalog ID T-166
CAS # 9035-81-8
Grade HIGH PURITY GRADE
Storage/Handling Store desiccated at -20°C.
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T-166-100 100 mg $ 75.00
T-166-500 500 mg $ 262.50
T-166-1 1 g $ 472.50

Tyramine, free base

Catalog ID Size Pricing
T-450-500 500 g $ 276.00
T-450-1 1 kg $ 442.00
T-450-2.5 2.5 kg $ 884.00
T-450-5 5 kg $ 1,509.00

Description

No description available

Product Specifications

Catalog ID T-450
CAS # 51-67-2
MW 137.18 g/mol
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T-450-500 500 g $ 276.00
T-450-1 1 kg $ 442.00
T-450-2.5 2.5 kg $ 884.00
T-450-5 5 kg $ 1,509.00

X-alpha-D-mannoside

Catalog ID Size Pricing
B-450-1 1 g $ 437.00
B-450-2.5 2.5 g $ 770.00
B-450-5 5 g $ 1,084.00
B-450-10 10 g $ 1,527.00

Description

X-alpha-D-mannoside (or X-Man) is a derivative of alpha-D-mannopyranoside and is used in histochemical staining to detect the presence of α-mannosidase.In the presence of α-mannosidase, X-Man forms a granular blue precipitate.

Product Specifications

Catalog ID B-450
CAS # 125229-64-3
MW 408.63 g/mol
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B-450-1 1 g $ 437.00
B-450-2.5 2.5 g $ 770.00
B-450-5 5 g $ 1,084.00
B-450-10 10 g $ 1,527.00

X-Gal

Catalog ID Size Pricing
X4281C 1 g $ 42.00   $ 36.00
X4281C10 10 g $ 229.00   $ 195.00

Description

5-Bromo-4-chloro-3-indolyl β-D-galactopyranoside is most commonly known as X-Gal. X-gal is a histochemical substrate for β-galactosidase which cleaves X-Gal to yield an insoluble blue precipitate.

X-Gal is a mainstay in molecular biology cloning applications in which it is used to detect the activity of β-galactosidase. X-Gal is used to detect the insertion of foreign DNA into the lacZ region of a plasmid DNA. Insertion of DNA into the lacZ region results in the loss of β-galactosidase activity. Bacteria cells that retain active β-galactosidase will result in characteristic blue colonies. Successful disruption of the lacZα gene disrupts the α-complementation of the β-galactosidase gene and the precipitate does not form, resulting in white colonies.

Many other applications also use X-Gal as a substrate to detect β-galactosidase activity. These include β-galactosidase -antibody linked immunoassays and immunohistochemistry, coliphage detection based on β-galactosidase induction and the detection of micrometastasis formation during tumor progession.

Product Specifications

Catalog ID X4281
CAS # 7240-90-6
MW 408.63 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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X4281C 1 g $ 42.00
$ 36.00
X4281C10 10 g $ 229.00
$ 195.00

X-gluc (CHX salt)

Catalog ID Size Pricing
G1281C 100 mg $ 46.00   $ 40.00
G1281C1 1 g $ 172.00   $ 147.00
G1281C2 2 x 1 g $ 330.00   $ 281.00
G1281C3 3 x 1 g $ 472.00   $ 402.00
G1281C4 4 x 1 g $ 562.00   $ 478.00
G1281C5 5 g $ 652.00   $ 555.00

Description

X-Gluc is a chromogenic substrate for beta-glucuronidase (GUS) which is encoded by the gusA (uid A) gene, a widely used reporter gene. Glucuronidase cleaves X-Gluc to produce colorless glucuronic acid and an intense blue precipitate. X-Gluc is often used in GUS staining of plant cells and tissue and in infections caused by E. coli.

Product Specifications

Catalog ID G1281
CAS # 114162-64-0
MW 521.79 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store desiccated at -20°C. Protect from light.
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G1281C 100 mg $ 46.00
$ 40.00
G1281C1 1 g $ 172.00
$ 147.00
G1281C2 2 x 1 g $ 330.00
$ 281.00
G1281C3 3 x 1 g $ 472.00
$ 402.00
G1281C4 4 x 1 g $ 562.00
$ 478.00
G1281C5 5 g $ 652.00
$ 555.00

X-pal

Catalog ID Size Pricing
B-470-100 100 mg $ 109.00
B-470-250 250 mg $ 208.00
B-470-500 500 mg $ 350.00
B-470-1 1 g $ 630.00

Description

No description available

Product Specifications

Catalog ID B-470
CAS # 341972-98-3
MW 484.91 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-470-100 100 mg $ 109.00
B-470-250 250 mg $ 208.00
B-470-500 500 mg $ 350.00
B-470-1 1 g $ 630.00

X-sulfate K

Catalog ID Size Pricing
B-520-1 1 g $ 342.00
B-520-2.5 2.5 g $ 789.00
B-520-5 5 g $ 1,427.00
B-520-10 10 g $ 1,903.00

Description

No description available

Product Specifications

Catalog ID B-520
CAS # 6578-07-0
MW 364.65 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-520-1 1 g $ 342.00
B-520-2.5 2.5 g $ 789.00
B-520-5 5 g $ 1,427.00
B-520-10 10 g $ 1,903.00

X-α-Gal

Catalog ID Size Pricing
XA250 250 mg $ 81.00   $ 69.00
XA500 500 mg $ 150.00   $ 128.00
XA1 1 g $ 229.00   $ 195.00
XA5 5 g $ 932.00
XA10 10 g $ 1,579.00

Description

X-α-Gal is a chromogenic substrate for α-galactosidase, yielding a blue precipitate. X-α-Gal is used for detecting two-hybrid interactions directly on the culture media. This substrate eliminates the need for β-galactosidase liquid and filter-lift assays in two-hybrid analysis.
Used for species differentiation within the family Enterobacteriaceae and differentiation of Bifidobacteria species from Lactobacilli species.

Product Specifications

Catalog ID XA
CAS # 107021-38-5
MW 408.64 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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XA250 250 mg $ 81.00
$ 69.00
XA500 500 mg $ 150.00
$ 128.00
XA1 1 g $ 229.00
$ 195.00
XA5 5 g $ 932.00
XA10 10 g $ 1,579.00

X-α-L-fucopyranoside

Catalog ID Size Pricing
B-360-100 100 mg $ 94.00
B-360-250 250 mg $ 164.00
B-360-500 500 mg $ 258.00
B-360-1 1 g $ 413.00

Description

α-L-Fucosidases are carbohydrate-processing enzymes belonging to the exoglycosidase family of glycoside hydrolases. These enzymes break down glycosidic bonds of sugars at the terminal ends. Fucose –containing glycolipids and glycoproteins can accumulate in different tissues when α-L-Fucosidase is inactive.

X-α-L-fucopyranoside is used as a chromogenic substrate for α-L-Fucosidase, producing a blue precipitate.

Product Specifications

Catalog ID B-360
CAS # 171869-92-4
MW 392.64 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-360-100 100 mg $ 94.00
B-360-250 250 mg $ 164.00
B-360-500 500 mg $ 258.00
B-360-1 1 g $ 413.00

X-β-D-fucopyranoside

Catalog ID Size Pricing
B-370-50 50 mg $ 301.00
B-370-100 100 mg $ 377.00
B-370-250 250 mg $ 590.00
B-370-500 500 mg $ 736.00

Description

No description available

Product Specifications

Catalog ID B-370
CAS # 17016-46-5
MW 392.64 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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B-370-50 50 mg $ 301.00
B-370-100 100 mg $ 377.00
B-370-250 250 mg $ 590.00
B-370-500 500 mg $ 736.00

Y-β-D-GLC

Catalog ID Size Pricing
I-470-250MG 250 mg $ 55.00
I-470-5 5 g $ 535.00
I-470-10 10 g $ 891.00
I-470-25 25 g $ 1,856.00

Description

No description available

Product Specifications

Catalog ID I-470
CAS # 487-60-5
MW 295.29 g/mol
Grade MOLECULAR BIOLOGY GRADE
Storage/Handling Store at -20°C. Protect from light.
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I-470-250MG 250 mg $ 55.00
I-470-5 5 g $ 535.00
I-470-10 10 g $ 891.00
I-470-25 25 g $ 1,856.00

α-D-Fucose

Catalog ID Size Pricing
F-850-5 5 g $ 179.00
F-850-10 10 g $ 340.00
F-850-25 25 g $ 808.00
F-850-50 50 g $ 1,537.00

Description

No description available

Product Specifications

Catalog ID F-850
CAS # 3615-37-0
MW 164.16 g/mol
Storage/Handling Store at 4°C.
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F-850-5 5 g $ 179.00
F-850-10 10 g $ 340.00
F-850-25 25 g $ 808.00
F-850-50 50 g $ 1,537.00

β-Glucosidase

There is no image for β-Glucosidase β-Glucosidase
Catalog ID Size Pricing
G-050-100 100 KU $ 75.00
G-050-500 500 KU $ 225.00

Description

No description available

Product Specifications

Catalog ID G-050
MW 135 kDa
Grade BIOTECHNOLOGY GRADE
Storage/Handling Store desiccated at -20°C.
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G-050-100 100 KU $ 75.00
G-050-500 500 KU $ 225.00

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