SKU: 54591549105

Rabbit IL21, His tag

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Description

Rabbit IL21, His tagProduct Specification Species Rabbit Amino Acid Sequence Protein sequence (XP_008266192. 1, His18 Arg150, with C His tag) HKSSSKGQDRYMIRMHQLLDIVDQLQSDVNDLDPDFLPAPQDVQKGCEQSAFSCFQKAQLKPANAGDNGKRISSLIKQLKRKLPSTKSKKTQKHRPTCPSCYSYEKKNLKEFLERLKSLIQKMIHQHLLEHLR Expression System HEK293 Molecular Weight Predicted MW: 15. 4 kDa Observed MW: 18 kDa Purity 95% by SDS PAGE Physical Appearance Lyophilized Powder Storage Buffer Lyophilized from a 0. 2 m filtered

Product Specification


Species Rabbit
Amino Acid Sequence

Protein sequence (XP_008266192.1, His18-Arg150, with C-His tag) HKSSSKGQDRYMIRMHQLLDIVDQLQSDVNDLDPDFLPAPQDVQKGCEQSAFSCFQKAQLKPANAGDNGKRISSLIKQLKRKLPSTKSKKTQKHRPTCPSCYSYEKKNLKEFLERLKSLIQKMIHQHLLEHLR

Expression System HEK293
Molecular Weight Predicted MW: 15.4 kDa Observed MW: 18 kDa
Purity >95% by SDS-PAGE
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 21 (IL-21) is a cytokine that has potent regulatory effects on cells of the immune system, including natural killer (NK) cells and cytotoxic T cells that can destroy virally infected or cancerous cells. IL-21 is noted to have anti-tumour effects through continued and increased CD8+ cell response to achieve enduring tumor immunity. IL-21 may contribute to the mechanism by which CD4+ T helper cells orchestrate the immune system response to viral infections. In HIV infected subjects, IL-21 has been reported to critically improve the HIV-specific cytotoxic T cell responses and NK cell functions. IL-21 was approved for Phase 1 clinical trials in metastatic melanoma (MM) and renal cell carcinoma (RCC) patients. IL-21 proceeded to Phase 2 clinical trials where it was administered alone or coupled with drugs as sorafinib and rituximab.

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Exchange/Return Notes
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SKU: 54591549105

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4.1 ★★★★★
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perch98
Battle Creek, US
★★★★★ 5
This is THE BEST Polo-Style Shirt I Have EVER Seen!!
Color: Light Blue, Size: X-Large, Color: Light Blue, Size: X-Large
OH MAH GAWD this shirt is SO soft that I would call it slippery!! It fits PERFECTLY and true-to-size. The material is a lightweight 'satin' type feel to it that I have NEVER felt before!! Hubby just LOVES this shirt!! The color & print is just GORGEOUS with the subtle sleeve contrast at the 'cuff' (see pics)!! It is great quality with a style that will NEVER look "dated", since it is "Polo Reimagined" with the use of the slick-soft material! Given all of THAT... this is a GREAT value at this price!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
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Michael Kulp
Fort Morgan, US
★★★★★ 5
Highly Recommended Dress Shirt
Fit Type: Regular Fit, Color: White, Size: Medium
Honestly, I Love It. Fits Great, Neck Isn't Too Tight Like Most Shirts, And It's Comfortable. It Is 100% Cotton, So Dont Forget To Iron It Before Wearing It. High Quality Dress Shirt. Highly Recommended.
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Reviewed in the United States on October 21, 2025
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Jim
Phoenix, US
★★★★★ 5
Surprisingly good shirt for the price
Fit Type: Regular Fit, Color: White, Size: XX-Large
I’m generally pleased with my purchase. I got a 2XL because the website it would fit my neck. Around the waist it fit similar to Amazon Essentials work shirts (like mechanics use which I find comfortable). It was snug around the waist when sitting, but I can’t complain because I have a belly. I did find the neck snug when buttoning the top button so it means the neck is 18 or 18.5 and I wear a 19/19.5 to have 1-2 fingers space in the collar. The shirt is surprisingly thick like Amazon’s work shirts, much thicker than other dress shirts from another brand. And I am pleased that this shirt has button holes like other Amazon shirts does, all vertical button holes except the last one at the bottom which is horizontal. That feature keeps the shirt from unbuttoning itself during daily movement at the office. A very nice feature! I was a little disappointed in how it was packaged however but I have to press and wash it anyway.
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Reviewed in the United States on February 24, 2023
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NORBERT YOUNG
Draper, US
★★★★★ 4
Nice shirt, excellent quality, nice cloth and buttons. No pockets A+
Fit Type: Regular Fit, Color: White, Size: Large
Nice quality shirt cut a little small. The shirt kind of needs to be pressed before wearing however at this price point and quality its a buy!
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Reviewed in the United States on May 19, 2026
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PAMELA
West Palm Beach, US
★★★★★ 5
Fits perfect
Fit Type: Regular Fit, Color: Grey, Size: X-Large
This shirt is a perfect fit. I would buy it again in other colors.
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Reviewed in the United States on May 9, 2026

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