SKU: 20778716546

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: 20778716546

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good/bad HP Chromebook 15" Intel N200, 8GB DDR5 RAM, 192GB Storage
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As I just received this Chromebook this is my review. Likes: its much faster than my old Chromebook which is a Acer about 10 years old. I like the big screen vs my old 14". good color and definition. HATE:The lightly colored letters. It is near impossible to read in low light and even in medium light. I have already ordered new stick on letters to make it more visible. HP you should have done a better job than this. This really detracts from the enjoyment of using this Chromebook. It is terrible. I can't give it 5 stars because of this problem.I would have liked another port for plug ins like mouse or thumb drives. Otherwise I love it.
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Battle Creek, US
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Capacity: 64GB eMMC+128GB SD Card
So far so good. Considering I got it primarily for browsing and smaller tasks, it's worrying perfectly so far. Boots up very fast, runs very smooth, and so far I'm happy with the battery life. I do wish I had thought about making sure it had a keyboard light but that's still mostly not a problem for me. I also like how simple it was to set everything up and get it synced with my google account and phone.
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Reviewed in the United States on December 26, 2025

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