SKU: 49225478581

IL-31 His Tag Protein, Human

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Description

IL-31 His Tag Protein, HumanProduct Specification Species Human Accession Q6EBC2 Amino Acid Sequence Ser24 Thr164, with N His Tag Expression System HEK293 Molecular Weight Predicted MW: 17. 5 kDa Observed MW: 20 kDa Purity >95% by SDS PAGE Endotoxin <1EU g Conjugation Unconjugated Tag His Tag Physical Appearance Lyophilized powder Storage Buffer 0. 2M PBS, pH7. 4 with 3% trehalose. Reconstitution Reconstitute no more than 1 mg mL according to the size in deionized water after

Product Specification


Species Human
Accession Q6EBC2
Amino Acid Sequence

Ser24-Thr164, with N-His Tag

Expression System HEK293
Molecular Weight

Predicted MW: 17.5 kDa Observed MW: 20 kDa

Purity >95% by SDS-PAGE
Endotoxin <1EU/μg
Conjugation Unconjugated
Tag His Tag
Physical Appearance Lyophilized powder
Storage Buffer

0.2M PBS, pH7.4 with 3% trehalose.

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-31 (IL-31) is a novel cytokine belonging to the IL-6 family, primarily produced by activated T helper 2 (Th2) cells and mast cells. It signals through a heterodimeric receptor composed of IL-31 receptor A (IL-31RA) and oncostatin M receptor β (OSMRβ), which is expressed on various cell types including sensory neurons, keratinocytes, and immune cells. IL-31 is a key mediator of pruritus (itch) in inflammatory skin diseases such as atopic dermatitis, psoriasis, and allergic conditions. Its signaling pathway promotes itch sensation, disrupts epidermal barrier function, and drives immune responses, making it a significant therapeutic target for chronic pruritic disorders.

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Exchange/Return Notes
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SKU: 49225478581

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4.7 ★★★★★
Based on 6 reviews
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Verified Purchase
peggy541
Charlottesville, US
★★★★★ 1
Half gone in the first 45 minutes...
Size: 6 Inch, Color: Bone
our medium sized dog is an aggressive chewer but we expected mire than 3/4 of an hour before the bone's demise. Half gone quickly, heavy stitching included, so threw away the second half for fear of a blockage. Not safe, not durable, disappointing. Sorry, cannot recommend this one.
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Reviewed in the United States on May 19, 2026
E
Verified Purchase
Elizabeth
Cuba, US
★★★★★ 5
Puppy loves it!
Size: 6 Inch, Color: Bone
I have a very energetic lab puppy - this chew kept her still for longer than any other toy I’ve tried (besides bully sticks and peanut butter). Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
L
Verified Purchase
Lisa Jones
Lowell, US
★★★★★ 5
Good for an aggressive chewer
Size: 6 Inch, Color: Bone
My dog loves it. These last a long time. My dog is a Rottweiler/American Bulldog mix, she goes through a lot of toys. So, I try to buy her something that has no stuffing, but will keep her from getting bored. This one has lasted about 6-7 months, the leather is chewed off, but it's still the shape of a bone. I did just order another though, the one she has is a little stinky from her slobber. :-)
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Reviewed in the United States on April 11, 2026
K
Verified Purchase
Karen K.
Bozeman, US
★★★★★ 3
Not as expected
Size: 6 Inch, Color: Bone
I have been looking for these ever since we got a similar one at Sierras for our 1 1/2 yo Cane Corso. She is brutal on chew toys and the first one from the box store held up well. However, this did not hold up as well and she was done with it in less than a week. Still looking for that perfect toy.
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Reviewed in the United States on May 20, 2026
J
Verified Purchase
Jackie
Los Angeles, US
★★★★★ 5
More durable than expected.
Size: 5 Inch, Color: Raccoon
I was walking through my front room the other day when I noticed a suspicious spot on the floor. It looked like something I should not touch without gloves. As I got closer, I realized what it was. It’s the ‘guts’ from this toy. My dogs (Pit Bull and German Shorthaired Pointer) were each given one. Both are aggressive chewers with their toys. They ATE the faces off these toys and now play with the felt interior. I’m still trying to figure out how they ate through leather while the felt remained intact. Regardless, they still play with them. Now they are basically semi-fuzzy throw toys we can throw in the house because they don’t leave marks on the wall if our aim is off. Sometimes things work out the way they should. :)
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Reviewed in the United States on March 12, 2026

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