CD81 Fc Chimera Protein, Human
SKU: 85986354747

CD81 Fc Chimera Protein, Human

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Description

CD81 Fc Chimera Protein, HumanProduct Specification Species Human Synonyms CVID6, S5. 7, TAPA1, TSPAN28CD81 antigen CD81 Accession P60033 Amino Acid Sequence Phe113 Lys201, with hIgG Fc Expression System HEK293 Molecular Weight 35 42kDa (Reducing) Purity 95% by SDS PAGE & SEC HPLC Endotoxin <0. 1EU g Conjugation Unconjugated 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 CVID6, S5.7, TAPA1, TSPAN28,CD81 antigen, CD81
Accession P60033
Amino Acid Sequence Phe113-Lys201, with hIgG Fc
Expression System HEK293
Molecular Weight

35-42kDa (Reducing)

Purity >95% by SDS-PAGE & SEC-HPLC
Endotoxin <0.1EU/μg
Conjugation Unconjugated
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.  Biochem Soc Trans 2017 Apr 15;45(2):531-535 

Background

CD81 participates in a variety of important cellular processes such as membrane organization, protein trafficking, cellular fusion and cell-cell interactions. In the immune system, CD81 regulates immune synapse, receptor clustering and signaling; it also mediates adaptive and innate immune suppression. CD81 is a gateway in hepatocytes for pathogens such as hepatitis C virus and Plasmodium. These diverse biological roles are due to the tendency of CD81 to associate with other tetraspanins and with cell-specific partner proteins, which provide the cells with a signaling platform. CD81 has also been shown to regulate cell migration and invasion, and has therefore been implicated in cancer progression. Indeed, we have recently shown that CD81 contributes to tumor growth and metastasis. CD81 is expressed in most types of cancer, including breast, lung, prostate, melanoma, brain cancer and lymphoma, and the overexpression or down-regulation of this molecule has been correlated with either good or bad prognosis.

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SKU: 85986354747

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S McCullough
San Leandro, US
★★★★★ 5
My Dog Loves Them
I have a smallish dog and for some reason he loves these squeaky lobsters. It takes him about 1 year to destroy one. They are a good buy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
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Verified Purchase
HJ
Phoenix, US
★★★★★ 5
Great Customer service
Color: Blue Bone
After reading my review that my toy contained no squeaker, I was contacted by the seller. They are sending me a new toy. I appreciate their support. The toy I received is well made it is just missing the squeaking that my dog loves.
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Reviewed in the United States on June 30, 2025
E
Elle
Belleville, US
★★★★★ 4
Important!: Note the Size. These are TINY Toys.
The most important thing is to double (or triple!) check the size before ordering. I got the lobster, and though it looks small in the photos, it's much tinier in person. The image with the measurements lists in centimeters first, so it's super easy to give it a glance, assume it's in inches, and move on. Despite knowing the size, when I took it out of the package I assumed I was sent the wrong product, as it looks like one of those mini stuffies people hang on their car rearview mirror. Aside from sizing, what you see is what you get and it looks like the photos as far as coloring, material, etc.
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Reviewed in the United States on May 1, 2025
O
Verified Purchase
Ohkellygirl
Phoenix, US
★★★★★ 5
12 year old lab loves these
Color: Pink Pig
I have a 12 year old lab that things she’s still a puppy. She’s always been a chewer and these have held up surprisingly well. They’re the perfect size for my big lab and so far they’re all in one piece.
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Reviewed in the United States on November 6, 2025
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Verified Purchase
Sharon Slabaugh
Chelsea, US
★★★★★ 3
The size
It's very small.
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Reviewed in the United States on May 31, 2025

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