UniOne® TR-FRET Human IL21/IL21R Binding Kit
SKU: 13138354451

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: 13138354451

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kaity
Louisville, US
★★★★★ 5
Small fan, serious power
Color: Black
I bought the Honeywell Turboforce Fan for my bedroom, and I’m honestly impressed with how powerful this little thing is. Don’t let the compact size fool you — it moves a lot of air. On the lowest setting it’s perfect for a gentle breeze while sleeping, and the higher settings can easily cool down a medium-sized room or help circulate AC much more efficiently. The 90-degree pivoting head is a great feature. I can angle it upward for better air circulation or point it directly at me when it’s extra hot. It’s lightweight, easy to move around, and doesn’t take up much space on a desk or nightstand. It can also be wall-mounted, which is a nice bonus. Noise level is reasonable. On low, it’s actually a pleasant white noise. Medium and high are louder, but not in an annoying way — just the sound of strong airflow. Build quality feels solid for the price, and it’s been running daily without any issues. For the cost, this fan seriously overperforms. If you need a compact, affordable, and powerful fan, this is a no-brainer. I’d absolutely buy it again.
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Reviewed in the United States on April 11, 2026
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Gianluca
Los Angeles, US
★★★★★ 5
Great price and very quiet
Color: Black
I use the Honeywell TurboForce HT-900 in my home office to help with airflow around my computer setup, and it’s been a solid performer for the price. Despite its small size, it moves a surprising amount of air. On high, it pushes a strong, focused stream that actually reaches across the room. Medium is what I use most often since it balances good circulation with reasonable noise, and low is quiet enough to run in the background without being distracting. Noise levels are generally acceptable. Low and medium are fairly quiet with a consistent hum, while high is noticeably louder but still not unbearable for short bursts. It’s also very simple to position and use. The head tilts easily, so you can aim airflow exactly where you need it, and the compact size makes it easy to place on a desk without taking up much space. Overall, it’s a straightforward, no-frills fan that does its job well. Strong airflow, simple controls, and good value for the price.
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Reviewed in the United States on April 30, 2026
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Brandy Mullane
Louisville, US
★★★★★ 5
Powerful and long lasting
Color: Black
I purchased a blue colored one in May 2022 and it finally went out a few days ago. I ran this thing almost constantly as im going through menopause and it came to be a staple at my bedside. 4 years of running ALL THE TIME! Great little fan with a ton of airflow to keep me cool during night sweats. And it has just enough white noise to distract from outside noise. Also, the motor power never differentiated after using for so long. It was still strong. I just ordered another one to replace it and cant wait for it to arrive so I can sleep again! Only thing is they only have bakck or white instead of blue this time but thats ok as long as it performs.
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Reviewed in the United States on May 14, 2026
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Morocco Victor Parker
Lake Worth, US
★★★★★ 4
Small fan, serious power
Color: Black
I bought the Honeywell Turboforce Fan for my bedroom, and I’m honestly impressed with how powerful this little thing is. Don’t let the compact size fool you — it moves a lot of air. On the lowest setting it’s perfect for a gentle breeze while sleeping, and the higher settings can easily cool down a medium-sized room or help circulate AC much more efficiently. The 90-degree pivoting head is a great feature. I can angle it upward for better air circulation or point it directly at me when it’s extra hot. It’s lightweight, easy to move around, and doesn’t take up much space on a desk or nightstand. It can also be wall-mounted, which is a nice bonus. Noise level is reasonable. On low, it’s actually a pleasant white noise. Medium and high are louder, but not in an annoying way — just the sound of strong airflow. Build quality feels solid for the price, and it’s been running daily without any issues. For the cost, this fan seriously overperforms. If you need a compact, affordable, and powerful fan, this is a no-brainer. I’d absolutely buy it again.
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Reviewed in the United States on May 23, 2026
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Dk
Boise, US
★★★★★ 5
Great powerful little fan, good deal.
Color: Black
Nice powerful fan, good price! larger than an average desktop fan, keeps the air moving, and is fairly quiet.
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Reviewed in the United States on May 19, 2026

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