SKU: 69403653778

Human lL-2 OneStep OptiQuant Plus ELISA Kit

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Description

Human lL-2 OneStep OptiQuant Plus ELISA KitProduct Specification Antigen IL 2 Immunogen Recombinant Protein Antibody Type Recombinant mAb Reactivity Hu Purification Protein A Stability & Storage 12 months from date of receipt reconstitution, 2 to 8 C as supplied. Kit Precision Intra assay: 4. 4% Inter assay: 6. 2% Sample type Serum, Plasma, Cell culture supernatant Assay type Sandwich (quantitative) Sensitivity 1. 990 pg ml Range 3. 13 pg mL 200 pg mL Recovery Cell culture supernatant: 96%

Product Specification


Antigen IL-2
Immunogen Recombinant Protein
Antibody Type Recombinant mAb
Reactivity Hu
Purification Protein A
Stability & Storage

12 months from date of receipt / reconstitution, 2 to 8 °C as supplied.

Kit


Precision Intra-assay:4.4%;
Inter-assay: 6.2%
Sample type Serum, Plasma, Cell culture supernatant
Assay type Sandwich (quantitative)
Sensitivity 1.990 pg/ml
Range 3.13 pg/mL – 200 pg/mL
Recovery Cell culture supernatant: 96%
Serum: 111%
Plasma: 92%
Assay time 60 minutes
Species reactivity Human

Background

Interleukin-2 (IL-2) is an interleukin, a type of cytokine immune system signaling molecule, which is a leukocytotropic hormone that is instrumental in the body natural response to microbial infection and in discriminating between foreign (non-self) and self. IL-2 mediates its effects by binding to IL-2 receptors, which are expressed by lymphocytes, the cells that are responsible for immunity. Mature human IL-2 shares 56% and 66% aa sequence identity with mouse and rat IL-2, respectively. Human and mouse IL-2 exhibit cross-species activity. The receptor for IL-2 consists of three subunits that are present on the cell surface in varying preformed complexes. IL-2 is also necessary during T cell development in the thymus for the maturation of a unique subset of T cells that are termed regulatory T cells (T-Regs). After exiting from the thymus, T-Regs function to prevent other T cells from recognizing and reacting against "self-antigens", which could result in "autoimmunity". T-Regs do this by preventing the responding cells from producing IL-2. Thus, IL-2 is required to discriminate between self and non-self, another one of the unique characteristics of the immune system.

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SKU: 69403653778

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4.4 ★★★★★
Based on 18 reviews
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J
Verified Purchase
JMB
Pawtucket, US
★★★★★ 5
Mixes my protein shake powder
Color: Blue
My husband and I both drink protein shakes daily. We have vortex mixers that work great, but they are plastic and getting old, and really needed to be replaced. In an effort to reduce microplastics in our lives, I am trying to use less plastic mixing cups. I couldn't find anything small enough (other than regular blenders) with glass and metal parts that would work well for us. During my search on here, several frothers showed up. This one caught my eye because of the amount of sales, quick delivery, and of course, decent pricing. Some of the reviews had me a little skeptical, and time will tell regarding the longevity, but so far I am pleased. My protein powders are on the heavy side, but this little frother really gets the job done. Instead of having to use separate mixing cups (saving me on dishwashing), I just use my morning coffee cup (it's big enough) to mix my protein shake in. My husband just uses a regular glass. Neither of us can believe the power this little thing has. We are getting smooth shakes! Here is what I really like about it: It is powerful and mixes well; the frother is metal and not plastic; it cleans extremely easy; after making several shakes the battery has not died; can be used in glasses, coffee cups, even disposable cups (when we buy donut shop coffee); and I love the little stand which takes up barely any counter space. Less plastic, less clean-up, dependable (so far), and small, making it convenient even for travel. I'm really glad I got this, and hope it will last. One last thing, do not turn it on while cleaning under running water. (Yes, you can laugh.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
D
Verified Purchase
David A.
New York, US
★★★★★ 5
Powerful frother with a long rechargeable battery life
Color: Black
After purchasing three of the battery operated frothers. I finally found this amazing frother. It is very powerful so you do have to be careful not to slosh liquid out of your cup when you’re using it. But I have found it helps if you rotate the frother in a stirring motion while you are using it. That really helps keep the liquid from overflowing out of the cup. It has a sleek design and is rechargeable and the charge less about two weeks.I love this one so much. I take it with me when I travel. I actually left my original one at my mother’s house the last time I visited her and have ordered another one for my house. Highly recommend.
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Reviewed in the United States on May 27, 2026
M
Verified Purchase
MJFinds
Massapequa, US
★★★★★ 5
Great Power and Creamy Foam
Color: White
This frother is amazing and has really good power. It creates creamy, smooth foam in seconds and works perfectly for iced lattes, cappuccinos, and matcha. I love that it’s rechargeable and lightweight, but still feels strong and high quality. As someone who loves coffee, this has become one of my favorite tools for making café-style drinks at home. Easy to use, easy to clean, and looks beautiful on my coffee station.
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Reviewed in the United States on May 20, 2026
D
Verified Purchase
Desert hiker
Belleville, US
★★★★★ 4
Powerful easy to operate but splashes
Color: Black
Excellent frother--Very powerful and easy to turn on/off with one button. The only downside is it requires a deep container in which to froth. The frothing pitcher I had was too small and milk splashes everywhere. There is no lower speed so it works fast. I am using a deep insulated container now for frothing. Otherwise, very quite, easy to operate no pushing down on the top like other frother wands. I love it as long as I can control it to limit the splashing.
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Reviewed in the United States on May 31, 2026
C
Verified Purchase
Charles M.
New York, US
★★★★★ 5
Froths Milk in Seconds
Color: Black
Frother I had for a couple of years broke. Based on reviews I bought this. Love it being rechargable. The POWER! It froths milk in seconds. Also great for that after workout protein drink. Also is a little longer than my last frother so it works great with larger glasses.
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Reviewed in the United States on May 27, 2026

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