SKU: 90220248535

Human IL-2

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Description

Human IL-2Product Specification Species Human Synonyms T cell growth factor (TCGF), IL2 Accession P60568 Amino Acid Sequence Protein sequence (P60568, Ala21 Thr153) APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT Expression System HEK293 Molecular Weight Predicted MW: 15. 4 kDa Observed MW: 15, 16 kDa Purity 95% by SDS PAGE Endotoxin <1EU g Physical Appearance Lyophilized

Product Specification


Species Human
Synonyms T-cell growth factor (TCGF), IL2
Accession P60568
Amino Acid Sequence

Protein sequence (P60568, Ala21-Thr153) APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT

Expression System HEK293
Molecular Weight Predicted MW: 15.4 kDa Observed MW: 15, 16 kDa
Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Physical Appearance Lyophilized Powder
Storage Buffer Lyophilized from a 0.2 μm filtered solution of 0.2M PBS, pH7.4.
Reconstitution Reconstitute no more than 1 mg/mL according to the size in deionized water after rapid centrifugation.
Stability & Storage

12 months from date of receipt, -20 to -70 °C as supplied. 6 months, -20 to -70 °C under sterile conditions after reconstitution. 1 week, 2 to 8 °C under sterile conditions after reconstitution. Please avoid repeated freeze-thaw cycles.

Background

Interleukin-2 (IL-2) is an interleukin, a type of cytokine signaling molecule in the immune system. It is a 15.5–16 kDa protein that regulates the activities of white blood cells (leukocytes, often lymphocytes) that are responsible for immunity. IL-2 is part of the body's 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 major sources of IL-2 are activated CD4+ T cells and activated CD8+ T cells. Put shortly the function of IL-2 is to stimulate the growth of helper, cytotoxic and regulatory T cells. In the thymus, where T cells mature, it prevents autoimmune diseases by promoting the differentiation of certain immature T cells into regulatory T cells, which suppress other T cells that are otherwise primed to attack normal healthy cells in the body.

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Exchange/Return Notes
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SKU: 90220248535

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4.7 ★★★★★
Based on 27 reviews
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skippyp
Fort Morgan, US
★★★★★ 3
Protection with days of white residue
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Mineral sunscreens have yet to master blending in and this is no different. If you're thinking of hitting the beach with your sexy bum protected it'd better be a ghost beach because you'll look like you've been dipped in white paint. Oh, and it doesn't wash off, so be prepared to look like Casper for days to come. It rolls on fine if you shake it well first and it does protect.
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Reviewed in the United States on June 8, 2025
L
Verified Purchase
Lacy
Lowell, US
★★★★★ 5
Go-To for Reef-Safe & Light-Weight Sunscreen
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Favorite sunblock to travel with. Appreciate the simplicity of it, and the fact that it rolls on and rubs in smooth. Of course the iconic scent is also a plus.
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Reviewed in the United States on May 18, 2026
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Verified Purchase
Jenny J
Chelsea, US
★★★★★ 5
Great choice
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
After I suffered a second-degree burn from steam, I was told by my doctor that I would have to keep my new fresh skin sun-blocked for up to a year to avoid any scarring or hyper pigmentation. This has been a great selection as it is a roll-on, Which helps a lot with preventing messes that can happen with traditional sunblock bottles. I also like that it is easy to travel with, and the fact that it is zinc based.
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Reviewed in the United States on August 26, 2025
A
Verified Purchase
A reader
Lowell, US
★★★★★ 5
My favorite new mineral sunscreen!
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
This is my favorite new mineral sunscreen! I've been searching for years for a product that is easy to apply, not messy, and doesn't show up too white. This roll-on is the perfect solution. I keep it near the front door and quickly roll the sunscreen on my hands, arms, and chest before leaving the house. The sunscreen applies so quickly and uniformly-- there are no bare spots or messy globs to rub in. Also, the roll-on keeps the sunscreen from oozing out of the tube and getting all over everything. Finally, the roll-on method also eliminates the frustration of having half-filled tubes and pumps where you can't even access the sunscreen when the tube gets low. Here's hoping this doesn't happen with the roll-on. Thank you Sun Bum for creating this wonderful product. I also love the reasonable price.
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Reviewed in the United States on October 24, 2025
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Verified Purchase
Cathy mccann
Cuba, US
★★★★★ 5
great product - it must be blended in well
Style: SPF 50 Roll On, Size: 3 Fl Oz (Pack of 1)
Love this stuff. The roll-on makes it easy to apply on the go. It leaves a white streak unless you blend it in. I don't mind the white streak - at least I know I applied the product.
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Reviewed in the United States on February 4, 2026

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