SKU: 67415187703

IL-13 Protein, Human

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Description

IL-13 Protein, HumanProduct Specification Species Human Synonyms Interleukin 13, IL 13 Accession P35225 Amino Acid Sequence Gly35 Asn146 Expression System E. coli Molecular Weight 10 12 kDa (Reducing) Purity >95% by SDS PAGE. Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized powder Storage Buffer 4mM HCl Reconstitution Reconstitute at 0. 1 1 mg ml according to the size in Reconstitute Buffer after rapid centrifugation. Stability &

Product Specification


Species Human
Synonyms Interleukin-13, IL-13
Accession P35225
Amino Acid Sequence

Gly35-Asn146

Expression System E.coli
Molecular Weight

10-12 kDa (Reducing)

Purity >95% by SDS-PAGE.
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag No Tag
Physical Appearance Lyophilized powder
Storage Buffer

4mM HCl

Reconstitution

Reconstitute at 0.1-1 mg/ml according to the size in Reconstitute Buffer 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

Cell. 2008 Jan 25;132(2):259-72.
N Engl J Med. 2016 Dec 15;375(24):2335-2348.

Background

Interleukin-13 (IL-13) is a pleiotropic type 2 cytokine discovered in 1993 as a product of activated T helper 2 (Th2) cells, crucial for orchestrating allergic inflammation and immune responses. Signals through a heterodimeric receptor complex comprising IL-13Rα1 and IL-4Rα (type II IL-4 receptor). IL-13 binds IL-13Rα1 with moderate affinity (KD = 30 nM), recruiting IL-4Rα to activate downstream pathways. Activation of JAK1 and JAK2/TYK2 tyrosine kinases, leading to STAT6 phosphorylation, dimerization, and nuclear translocation to regulate gene transcription.

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Exchange/Return Notes
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SKU: 67415187703

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4.5 ★★★★★
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Verified Purchase
Donna Burns
Port Orchard, US
★★★★★ 5
Quality and cuteness
Color: Brown
I loved this so much I must order one for my self it’s so darn cute. Thank you
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
K
Verified Purchase
KDSpray95
Chelsea, US
★★★★★ 1
Scam
Color: Brown+Blue, Color: Brown+Blue
Zero stars! What a disgrace. I waited weeks due to the delivery date changing after I placed the order. Then the shipping went up and cost more than the toy. It lasted 5 mins after opening, and it's head fell off. It was not even sewn on. So much for indestructible!!! Then when I returned, they sent a auto comment asking if I would keep it and take a 50% refund. No freaking way!! I'm so irritated right now.
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Reviewed in the United States on May 7, 2026
N
Verified Purchase
Nancy
Port Orchard, US
★★★★★ 1
This is not even chew resistant!!
Color: Brown
If there was an option for ZERO stars that would be this. Within 5 minutes my little 11 pound Havanese had all the ears off, then out came the stuffing. He had the little dog, and a green duck. I had to take the duck away to sew it….then he still had studding everywhere…and that was the little dog. Throwing stuffing and pieces away….I should have put these right back in the bags they came in. In no way ate these even chew “resistant “!!!! Probably just look good onna shelf.👎👎
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Reviewed in the United States on April 10, 2026
S
Verified Purchase
Sassafras
San Leandro, US
★★★★★ 3
Not quite "indestructible"
Color: Green+Brown
These toys are so cute! But, they are NOT for aggressive chewers! 15 minutes and they were ruined. But for kinder chewers...they are adorable.
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Reviewed in the United States on April 15, 2026
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 2
Easily Destructed
Color: Green+Orange
My dog destroyed it within a couple of days. The “rope” turned into strings which is dangerous if eaten
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Reviewed in the United States on May 31, 2026

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