SKU: 13019260033

IL-13 Protein, Human

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Description

IL-13 Protein, HumanProduct Specification Species Human Synonyms Interleukin 13 Accession AAH96139 Amino Acid Sequence Gly35 Asn146 ,at the C terminus 6His tag Expression System HEK293 Molecular Weight 13. 4 KDa Purity >95% by SDS PAGE Endotoxin <0. 01EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized powder Storage Buffer PBS, pH 7. 4. Reconstitution Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended

Product Specification


Species Human
Synonyms Interleukin-13
Accession AAH96139
Amino Acid Sequence

Gly35-Asn146 ,at the C-terminus 6His tag

Expression System HEK293
Molecular Weight 13.4 KDa
Purity >95% by SDS-PAGE
Endotoxin <0.01EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized powder
Storage Buffer

PBS, pH 7.4.

Reconstitution Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Stability & Storage

·12 months from date of receipt, lyophilized powder stored at -20 to -80℃.
·3 months, -20 to -80℃ under sterile conditions after reconstitution.
·1 week, 2 to 8℃ under sterile conditions after reconstitution.
·Please avoid repeated freeze-thaw cycles.

Background

Interleukin-13 is also known as IL-13. It is a protein that in humans is encoded by the IL13 gene. Interleukin-13 is an immunoregulatory cytokine produced primarily by activated Th2 cells.It is involved in several stages of B-cell maturation and differentiation. It up-regulates CD23 and MHC class II expression, and promotes IgE isotype switching of B cells. This cytokine down-regulates macrophage activity, thereby inhibits the production of pro-inflammatory cytokines and chemokines. This cytokine is found to be critical to the pathogenesis of allergen-induced asthma but operates through mechanisms independent of IgE and eosinophils.

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SKU: 13019260033

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Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
Gracias
Color: Nude
Gracias es bella
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
M
Michelle
San Leandro, US
★★★★★ 5
Looks Elegant, Carries…Just Enough
Color: Black, Color: Black
Summary This is one of those pieces you grab when you want your outfit to look finished. It definitely delivers on style—just don’t expect it to carry more than the basics. Design & Look This is the main win. The structured shape and clasp detail give it that polished, evening-ready feel. It looks more elevated than a typical soft clutch and works well for dressier outfits. Size & Storage On the smaller side, which is expected for this style. It fits the essentials (phone, cards, lipstick), but that’s about it. If you’re someone who carries everything “just in case,” this won’t be your everyday bag. Build & Structure Holds its shape really well, which keeps it looking clean and put together. Doesn’t collapse or lose form like softer bags. Ease of Use Opening and closing the clasp is simple once you get used to it. Not difficult, just slightly more intentional than a zipper or snap. Comfort & Carry Typical clutch experience—you’re either holding it or using a small strap if included. Not hands-free unless it comes with a chain. Durability Feels solid for occasional use. This isn’t a toss-it-around bag, but for events and outings, it holds up fine. Value for Price Good value if you’re buying it as a style piece. Less about function, more about completing a look. Final Take A great finishing accessory that looks polished and put together. Just go in knowing it’s built for style and essentials—not for carrying your whole life.
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Reviewed in the United States on April 23, 2026
T
The Jazzy Edition
Bozeman, US
★★★★★ 5
Elegant, Chic & Perfect for Special Occasions
Color: Nude
I absolutely love this clutch purse! The design is sleek, modern, and classy, making it the perfect accessory for weddings, parties, date nights, formal events, or vacations. The neutral color makes it super versatile and easy to pair with different outfits without clashing. Even though it has a compact look, it still holds the essentials like a phone, cards, keys, lipstick, and small personal items comfortably. The hard-shell design gives it a more luxurious appearance while also helping it keep its shape nicely. I also appreciate how lightweight and comfortable it is to carry. Overall, this clutch is stylish, elegant, and a beautiful finishing touch for dressy outfits!
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Reviewed in the United States on May 6, 2026
S
Sea Lover
Natrona Heights, US
★★★★★ 5
Should serve you well for years.
Color: Silver, Color: Silver
This classy evening bag by CHUNLI is large enough to hold all you will need for an evening out. It will hold your keys, driver's license, money, small brush or comb, lipstick, and of course your cell phone. The clasp on top is a little work of art and yet it still does a great job of holding the bag shut. The silver chain (not copper colored as shown in my photo) is strong and attractive and is easy to attach and remove. It makes the bag hands-free if you choose not to carry it as a clutch. Unlike some evening bags, this is a solid formed shape, and will not warp as a soft bag could do. This will enhance your dressy outfit.
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Reviewed in the United States on April 30, 2026
A
Amber
Louisville, US
★★★★★ 3
Cute but Too Hard & Noisy
Color: Nude
I was hoping this would be a little softer, but it’s definitely a hard shell. It is cute, but I don’t think I’d want to take it out much. It also makes a pretty loud noise when you set it down, which is a bit off-putting. Overall, just okay for me.
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Reviewed in the United States on April 12, 2026

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