SKU: 37078235497

IL-1 RII/CD121b His Tag Protein, Human

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Description

IL-1 RII/CD121b His Tag Protein, HumanProduct Specification Species Human Synonyms CD121b,IL1RB,IL1R2,CDw121b Accession P27930 Amino Acid Sequence Phe14 Glu343, with C terminal His Expression System HEK293 Molecular Weight 45 70kDa (Reducing) Purity 95% by SDS PAGE & SEC HPLC Endotoxin <0. 1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized Powder Storage Buffer PBS, PH7. 4, 5% trehalose Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in ultrapure

Product Specification


Species Human
Synonyms CD121b,IL1RB,IL1R2,CDw121b
Accession P27930
Amino Acid Sequence Phe14-Glu343, with C-terminal His
Expression System HEK293
Molecular Weight 45-70kDa (Reducing)
Purity >95% by SDS-PAGE & SEC-HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, PH7.4, 5% trehalose
Reconstitution Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation.
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.
Reference

1.Greenfeder, S. et al. (1995) J. Biol. Chem. 270:13757.

Background

Interleukin-1 receptor type 2 (IL1R2) is also known as CD121 antigen-like family member B (CDw121b), IL-1 type II receptor, Interleukin-1 receptor type II, belongs to the interleukin-1 receptor family. Two distinct types of IL1 receptors which are able to bind IL1 specifically have been identified, designated as IL1RI (IL1RA) and IL1RII (IL1RB). IL1R2 is non-signaling receptor for IL1A, IL1B and IL1RN, reduces IL1B activities. Serves as a decoy receptor by competetive binding to IL1B and preventing its binding to IL1R1. IL1R2 modulates cellular response through non-signaling association with IL1RAP after binding to IL1B. IL1R2 (membrane and secreted forms) preferentially binds IL1B and poorly IL1A and IL1RN. The secreted IL1R2 recruits secreted IL1RAP with high affinity; this complex formation may be the dominant mechanism for neutralization of IL1B by secreted/soluble receptors. It has been suggested that the type II receptor, either as the membrane-bound or as the soluble form, serves as a decoy for IL-1 and inhibits IL-1 action by blocking the binding of IL-1 to the signaling type I receptor complex. Recombinant IL-1 soluble receptor type II is a potent antagonist of IL-1 action.

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SKU: 37078235497

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4.7 ★★★★★
Based on 11 reviews
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Product Reviews
M
Verified Purchase
Mummy
Lake Worth, US
★★★★★ 5
Honestly….
Color: Blue goose - pineapple plush, Color: Blue goose - pineapple plush
I hate to buy Giant or Tiny a toy only to find it in some corner ignored. Would this goose make a lifetime friend OR would it fly away to some unknown corner of the house?!?! I was thrilled that Giant wanted to open the box himself. As soon as I set it on the table for some pictures, Giant saw his chance and grabbed it. This happened again! Safe to say, our family gives this a FIVE!! This is great as it squeaks and crinkles. It is super soft cloth and states it can hold up to aggressive chewers. It is one foot long. The stitching all seems to be in place. They state it is "Upgraded Indestructible" as it is sturdier material. The last toy has lived up to that claim. QUALITY: 5 out of 5 PROS: For us, it's the crinkle sound. I'm not sure why but they love that sound. Easy wash and go is great too! CONS: I wish it was bigger than one foot but that is because I have a big dog. Overall, Fantastic toy that is always with a dog. I will need to purchase more to have hidden away should it ever get lost.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
E
Verified Purchase
EUP
Los Angeles, US
★★★★★ 3
“Indestructible” not so much
Color: Blue goose - pineapple plush
Cute as can be, but the cloth-only tips on the wings and tail were immediately ripped off, eaten, and vomited. I’m hoping without those, the toy will be “more” indestructible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kindle CustomerJoanne
Los Angeles, US
★★★★★ 4
He loved the toy
Color: Blue goose - pineapple plush, Color: Blue goose - pineapple plush
My dog loved this toy, however it is not indestructible, he had it in 2 pieces within a day, but I do need to say he is a big boy and we haven’t found a toy yet that he can’t destroy
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Reviewed in the United States on April 10, 2026
L
Verified Purchase
LoriK
Lexington, US
★★★★★ 2
Disappointed
Color: Platypus - pineapple plush, Color: Platypus - pineapple plush
3 month old husky mix ripped this toy open within hours of having it and as of now, all the feet are missing. I only let him play with it a few hours a day because of the squeaker, so not as advertised.
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Reviewed in the United States on June 4, 2026
D
Verified Purchase
Darin
Charlottesville, US
★★★★★ 5
Really cool cat toy for even the most picky cat!
Color: A1-Red, Color: A1-Red
I love it, wow. Our cat is picky with toys, but even he was intrigued by it. It really kept his attention, which is hard to do. It comes with three modes: fast, slow, and interactive. The only thing is that hair can get all trapped up in it because it's a wheel, so keep your house clean I guess lol. The tail also came off once, so you gotta snuggly get it on up there. Really cool cat toy though, I'm happy I got it lol
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Reviewed in the United States on February 23, 2026

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