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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SKU: 41452901099

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Lorinna
Waukegan, US
★★★★★ 5
BEAUTIFUL QUALITY LOOK!
Color: Rustic Brown, Size: 48 Inch, Style: 2 Pack, Color: Rustic Brown, Size: 48 Inch, Style: 2 Pack
Absolutely Love These!! easy to Install They can Carry a Nice Load!! Super Durable!! Lock Pleasing to the eyes!!
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Reviewed in the United States on May 30, 2026
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Jose G. Montijo
Battle Creek, US
★★★★★ 4
pakaged
When I got them the box had damage and was pleasantly surprised that the shelves weren’t damaged, they were package well. Good quality very light and a nice finish.
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Reviewed in the United States on May 13, 2026
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Robert McDonald
Phoenix, US
★★★★★ 5
Very nice at a nice price.
Color: White, Size: 35 Inch, Style: 2 Pack, Color: White, Size: 35 Inch, Style: 2 Pack
Very easy to mount on the wall. Very sturdy with about 10-12 lbs on each shelf. Only took about 15 minutes to hang each one.
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Reviewed in the United States on May 13, 2026
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Cherry Lynn
Belleville, US
★★★★★ 5
Cat playground
Color: Black, Size: 35 Inch, Style: 3 Pack, Color: Black, Size: 35 Inch, Style: 3 Pack
Easy to install. Sturdy enough for 2 large rambunctious kitties to play on and look very nice. I was working on a vertical play space for the cats and since these come in many sizes it worked great. I did add grip tape to some.
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Reviewed in the United States on May 30, 2026
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Amazon Customer
Whiting, US
★★★★★ 3
Not the best quality
Color: Rustic Brown, Size: 35 Inch, Style: 2 Pack, Color: Rustic Brown, Size: 35 Inch, Style: 2 Pack
The shelving unit was not as I had expected. It arrived damaged. The damage is on the under side though. They are hollow and not hardwood as I had expected. Save your money if you want something of good quality. These are like 3 pieces of pressed wood glued together. They are space saving and look great in my space. The mounting hardware it comes with was plenty enough to hang these but make sure you hang them in the studs if at all possible. Assembly was simple. It does come with a micro level. Which a kid or pet could accidentally swallow. It’s like pill capsule sized so just be careful when opening the package.
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Reviewed in the United States on May 26, 2026

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