SKU: 9932873118

CD3 epsilon Fc Chimera Protein, Cynomolgus

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Description

CD3 epsilon Fc Chimera Protein, CynomolgusProduct Specification Species Cynomolgus Synonyms CD3,T3e,CD3epsilon Accession Q95LI5 Amino Acid Sequence Gln22 Asp117, with C terminal Human IgG1 Fc

Product Specification


Species Cynomolgus
Synonyms CD3,T3e,CD3epsilon
Accession Q95LI5
Amino Acid Sequence

Gln22-Asp117, with C-terminal Human IgG1 Fc

QDGNEEMGSITQTPYQVSISGTTVILTCSQHLGSEAQWQHNGKNKEDSGDRLFLPEFSEMEQSGYYVCYPRGSNPEDASHHLYLKARVCENCMEMDIEGRMDPKSSDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQYNSTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK

Expression System HEK293
Molecular Weight 37-43kDa (Reducing)
Purity

>95% by SDS-PAGE

Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag Human Fc Tag
Physical Appearance Lyophilized Powder
Storage Buffer PBS, pH7.4
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.

Background

CD3 has five kinds of peptide chains, namely γ chain, δ chain, ε chain, ζ chain and η chain, all of which are transmembrane proteins. The transmembrane region of CD3 molecule connects to the transmembrane region of two peptide chains of TCR through salt bridge, forming the TCR-CD3 complex, which is involved in nervous system development and positive regulation of cell adhesion. CD3 acts upstream of or within several processes, including positive regulation of T cell activation; positive regulation of cytokine production; and regulation of signal transduction.CD3 is located in several cellular components, including dendritic spine; external side of plasma membrane; and immunological synapse. Part of alpha-beta T cell receptor complex. CD3 is expressed in colon and hemolymphoid system.

Bispecific therapies targeting CD3, so-called T-cell engagers (TCE), belong to the new spectrum of anti-tumor immunotherapies stimulating T-lymphocytes. TCE are unique constructs targeting the MHC-independent CD3 epsilon subunit (CD3e) and a tumor antigen. Some TCE are in advances development, with promising results targeting CD20 and BSMA in lymphoma and myeloma. These successes have relaunched the development of TCE in solid tumors, bringing mixed results so far (notably in terms of tolerance). Still, TCE pave the way to new immunotherapy in tumors considered to be refractory to inhibitors of immune checkpoints such as prostate cancer or colorectal cancer.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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  • To process your return/exchange, please contact us at [email protected]
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SKU: 9932873118

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4.8 ★★★★★
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Product Reviews
J
Verified Purchase
James
Port Orchard, US
★★★★★ 5
Almost indestructible would recommend
I have owned the Monster K9 Indestructible Ball for one and a half years, and it has proven to be the most durable ball I have used for my German Shepherd. Out of all the balls we have tried, this one has lasted the longest under frequent, heavy chewing. Although my dog has finally managed to chew through it, I remain very satisfied with the product’s overall longevity and performance. I would definitely recommend purchasing this ball to other dog owners, especially those with strong chewers. It has provided exceptional play value over an extended period of time. One area for improvement is the warranty process. While the product advertising mentions a free replacement, there is no clear guidance on how to submit a claim, and I found it difficult to locate that information. Providing straightforward instructions for warranty claims would enhance the overall customer experience. Overall, this is a high-quality, long-lasting ball that I would recommend, particularly for large or powerful dogs.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
T
Verified Purchase
T-gal
Birmingham, US
★★★★★ 5
So far, so good!
Finally! A toy my 55 pound, 18 month old puppy hasn’t destroyed in minutes, and one she actually LOVES playing with. It has a really cool bounce and she loves chasing it and it’s easy for her to grab and run back to me with. So glad it wasn’t another waste of money. My only suggestions are to make this in a fun color other than black, and to make other just as strong toys besides a donut (she already has 2 other donuts from different companies which surprisingly have weathered her jaws) and add a squeaker to one of these ultra strong toys. More than chasing the ball, she loves squeaking!
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Reviewed in the United States on May 8, 2026
M
Verified Purchase
Melissa j
Battle Creek, US
★★★★★ 5
10/10 Great game changer for aggressive chewers
After a scary experience where our Doberman ingested part of a toy and needed emergency surgery, we had to get rid of all plush toys and small balls in our house. Replacing everything felt overwhelming. This ball has been fantastic. It’s truly built for aggressive chewers and holds up incredibly well. It’s perfect for fetch, strong enough for tug-of-war, and the bounce is excellent, which keeps our dog fully engaged during self-play when he’s entertaining himself. That unpredictable bounce makes it exciting without being unsafe. Most importantly, it gives us peace of mind. No shredding, no chunks coming off, no felt cover and constant worry about ingestion. Since having to replace all of his previous toys and balls, this one has stood out as the best by far. If you have a large, powerful dog—especially a Doberman—or a dog who destroys toys quickly, this is a must-have. Durable, safe, and genuinely fun. 10/10, highly recommend.
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Reviewed in the United States on January 21, 2026
C
Verified Purchase
Crystal Knapp
Chelsea, US
★★★★★ 5
Finally, a sturdy oversized ball my boy can't destroy! And can pick up easily
This is just wonderful! My dog has destroyed all other balls! I think this is finally one he cannot destroy. And I love the holes so he can pick it up and throw it himself. LOL. And it BOUNCES, bringing him endless joy and skill in catching it. Cause you don't know which way it will bounce off the ground. Oversize was just right for him. Glad to have found this great sturdy ball.
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Reviewed in the United States on April 29, 2026
K
Verified Purchase
Kristi V.
Lake Worth, US
★★★★★ 4
Almost perfect...upraised logo should be left off
This toy is great for relentless chewers with strong jaws! It would be almost perfect if it didn't have a "K9" logo in raised rubber on it. That is the place that my aggressive chewer shepherd/bulldog mix focuses on and is able to get small chunks off. Without that logo, he would chew the ball more evenly, instead of fixating on that one spot. He loves this ball and has chewed on it for about an hour off & on each of the 11 days he has had it. Although it is very durable so far, the flaw is the upraised logo.
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Reviewed in the United States on January 22, 2026

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