SKU: 41452901099

UniOne® TR-FRET Human IL21/IL21R Binding Kit

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Description

UniOne® TR-FRET Human IL21/IL21R Binding KitProduct Specification Host Human Stability & Storage 80 Background This kit utilizes Homogeneous Time Resolved Fluorescence(TR FRET) technology to measure the interaction between IL21 and IL21R. Thismethod enables simple and rapid high throughput screening of inhibitors andantibody blockers. As illustrated, the interaction between IL21 and IL21R isdetected using an Eu labeled anti Tag1 antibody (TR FRET donor) and anAcceptor labeled anti Tag2 antibody

Product Specification


Host Human
Stability & Storage

-80℃

Background

This kit utilizes Homogeneous Time-Resolved Fluorescence(TR-FRET) technology to measure the interaction between IL21 and IL21R. Thismethod enables simple and rapid high-throughput screening of inhibitors andantibody blockers.

As illustrated, the interaction between IL21 and IL21R isdetected using an Eu-labeled anti-Tag1 antibody (TR-FRET donor) and anAcceptor-labeled anti-Tag2 antibody (TR-FRET acceptor). The binding of IL21 toIL21R brings the donor and acceptor antibodies into proximity. Excitation ofthe donor antibody then triggers Fluorescence Resonance Energy Transfer (FRET)to the acceptor antibody, resulting in a specific emission signal at 665 nm.The intensity of this specific signal is proportional to the extent of theIL21/IL21R interaction. This homogeneous assay is simple to perform andrequires no washing steps.



Components

Table 1. Kit Components and Storage Temperature

Component

Concentration

500 TESTS

2500 TESTS

10000 TESTS

Storage Temp.

Tag1-IL21 protein

100×

20μL

100μL

400μL

-80°C

Tag2-IL21R protein

100×

20μL

100μL

400μL

-80°C

Anti-Tag1 Eu dye antibody

50×

50μL

250μL

1000μL

-80°C

Anti-Tag2 Ac antibody

12.5×

200μL

1000μL

4000μL

-80°C

Detection buffer

10×

2mL

10mL

40mL

-80°C

*Reagents should be protected from repeated freeze-thaw cycles. It is recommended to aliquot upon first thaw and store under the specified conditions. The shelf life is one year.

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Exchange/Return Notes
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SKU: 41452901099

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Amazon Customer
Pawtucket, US
★★★★★ 5
Great shelf for price!
Color: Natural Oak, Number Of Shelves: 1, Size: 35.4 inches, Color: Natural Oak, Number Of Shelves: 1, Size: 35.4 inches
Great shelf for price. VERY easy to install. We put one side of screws of metal bracket in studs to make it sturdy & stable. This was KEY! Follow simple drawing dictions and you can’t go wrong! Was Leary about some bad reviews but we had no issues. Came quickly with no flaws. Looks great and is very light, but is stable when put into bracket correctly. Size is beautiful with the thickness & depth of upscale shelf. If you want a nice shelf that doesn’t break the bank- get it. This one worked well for us!
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Reviewed in the United States on March 29, 2026
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Verified Purchase
Greg Schroeder
Pawtucket, US
★★★★★ 5
Nice little shelf
Color: Black, Number Of Shelves: 1, Size: 47.2 inches, Color: Black, Number Of Shelves: 1, Size: 47.2 inches
Super nice shelf for the price! Came with everything you need and easy to install.
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Reviewed in the United States on May 10, 2026
M
Verified Purchase
Mars
Waukegan, US
★★★★★ 5
Good basic decoration self.
Color: Black, Number Of Shelves: 1, Size: 47.2 inches
Easy to install. Looks good, good price.
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Reviewed in the United States on April 18, 2026
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Verified Purchase
Cody
Dallas, US
★★★★★ 4
Nice shelves. Minor defect in one of mine.
Color: Black, Number Of Shelves: 2, Size: 47.2 inches, Color: Black, Number Of Shelves: 2, Size: 47.2 inches
Sturdy and easy to hang. Look nice. One of the set screw holes was off by 1-1/2” so I had to drill a new one, that wasn’t ideal.
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Reviewed in the United States on February 24, 2026
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Verified Purchase
Michael
Fort Morgan, US
★★★★★ 1
Nice looking but bad quality and defects
Color: White, Number Of Shelves: 2, Size: 60 inches, Color: White, Number Of Shelves: 2, Size: 60 inches
Shelves look nice, but not great quality and one of my shelves came crooked (installed it perfectly level). Also has defects around the edges. Already installed so don’t want to rip off wall and return, but would like if they sent a couple new replacements at no charge. Keep you posted if that happens.
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Reviewed in the United States on April 14, 2026

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