SKU: 70462893738

Biotinylated B7-H3/CD276 His&Avi Tag Protein, Mouse

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Description

Biotinylated B7-H3/CD276 His&Avi Tag Protein, MouseProduct Specification Species Mouse Synonyms B7 H3, CD276, B7H3, B7 H3, CD276 antigen, CD276 molecule, CD276, B7H34Ig B7 H3, B7 H3B7 homolog 3, Costimulatory molecule Accession Q8VE98 Amino Acid Sequence Val29 Phe244, with C terminal His and Avi Tag Expression System HEK293 Molecular Weight 40 45kDa (Reducing) Purity 95% by SDS PAGE Endotoxin <0. 1EU g Conjugation Unconjugated Tag Avi Tag, His Tag Physical Appearance Lyophilized Powder Storage Buffer

Product Specification


Species Mouse
Synonyms B7-H3, CD276, B7H3, B7-H3, CD276 antigen, CD276 molecule, CD276, B7H34Ig-B7-H3, B7-H3B7 homolog 3, Costimulatory molecule
Accession Q8VE98
Amino Acid Sequence Val29-Phe244, with C-terminal His and Avi Tag
Expression System HEK293
Molecular Weight 40-45kDa (Reducing)
Purity >95% by SDS-PAGE
Endotoxin <0.1EU/μg
Conjugation Unconjugated
Tag Avi Tag, His 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.
Reference

1. Jie Liu, Shuo Yang, Bihui Cao, Guangyu Zhou, Fengjuan Zhang, Yuan Wang, Rixin Wang, Lipeng Zhu, Ya Meng, Cong Hu, Hui Liang, Xu Lin, Kangshun Zhu, Guokai Chen, Kathy Qian Luo, Lijun Di & Qi Zhao: Targeting B7-H3 via chimeric antigen receptor T cells and bispecific killer cell engagers augments antitumor response of cytotoxic lymphocytes, Journal of Hematology & Oncology, 29 January 2021.

Background

B7-h3 (B7 homolog 3 protein), also known as CD276, is an important immune checkpoint molecule in the B7-CD28 family. It is a type I transmembrane glycoprotein consisting of 316 amino acids and contains a putative 28AA signal peptide, a 217AA extracellular region composed of immunoglobulin constant (IgC) and variable (IgV) structures, a transmembrane region, and a 45-amino acid cytoplasmic domain. B7-H3 is a T cell co-suppressor molecule with partial co-stimulatory function. B7-H3 can effectively inhibit the function of T cells and NK cells, and also play a role in bone development. The expression of B7-H3 is low in normal tissues and is found in a variety of malignant tumors, which is closely related to the growth, metastasis, recurrence and poor prognosis of malignant tumors. B7-H3 can down-regulate T-assisted type 1 mediated immune response, inhibit CD4+T cell activation and inhibit cytokine production, and thus may play a role in promoting immune escape of cancer cells.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 70462893738

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4.1 ★★★★★
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Verified Purchase
Lisa Hester
Charlottesville, US
★★★★★ 4
Great toy but never received the replacement they offer.
It’s is a very durable toy. But not indestructible. My dog loves the ball and it did last 4 months which is much longer than any of his other toys. I emailed the company to see if they honored their one time replacement policy for Amazon orders. I was told they do and was told I was shipped a replacement. But we never received it. We’ve ordered plenty from Amazon before and after this so I don’t know where the hold up would of happened but here we are. I did email the company back and told them that I didn’t receive the replacement and asked if they could verify my address….but they haven’t responded. Just sucks. Would of been great if I actually got the replacement!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2025
G
Verified Purchase
Giovanni Gutierrez
Bozeman, US
★★★★★ 5
My HEAVY chewers favorite ball
It's dense and has some weight to it, can definitely get good distance when throwing and it bounces a long way. It's soft enough for my dog to chew on but tough enough that even with her destroying every toy I get her she looses these before ever tearing into them. About softball size.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
S
Verified Purchase
Sara
Lowell, US
★★★★★ 5
Safe
I normally don't write reviews but these products deserve the effort! I bought 4 different black toys from this Brand and all are still intact after 6 months heavy usage by 2 aggressive chewers (a Belg Malinois & black Lab), fantastic products and unlike so many other brands promising to be indestructible, these are the first toys that were not eaten within a month. No more visits to Vet to pay for Xrays after digesting plastic or rubber from badly made toys. Highly recommended.
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Reviewed in the United States on April 5, 2026
K
Verified Purchase
Kevin
Belleville, US
★★★★★ 3
NOT INDESTRUCTIBLE
NOT INDESTRUCTIBLE
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Reviewed in the United States on May 3, 2026
S
Verified Purchase
San
Grantham, US
★★★★★ 5
Very sustainable, cute and fun
My puppy enjoyed this toy! He goes around the house squeaking it and has not destroyed it yet.
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Reviewed in the United States on April 30, 2026

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