SKU: 71727802688

FITC-Labeled B7-H3/CD276 Fc Chimera Protein, Human

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Description

FITC-Labeled B7-H3/CD276 Fc Chimera Protein, HumanProduct Specification Species Human Synonyms B7 homolog 3 (B7 H3),CD276,B7 homolog 3 Accession Q5ZPR3 2 Amino Acid Sequence Leu29 Pro245 with Human IgG1 Fc at the C Terminus Expression System HEK293 Molecular Weight 60 70kDa Conjugation FITC Tag Human IgG1 Fc Physical Appearance Liquid Storage Buffer PBS, pH7. 4 Stability & Storage 12 months from date of receipt, lyophilized powder stored at 20 to 80. 3 months, 20 to 80 under sterile conditions after

Product Specification


Species Human
Synonyms B7 homolog 3 (B7-H3),CD276,B7 homolog 3
Accession Q5ZPR3-2
Amino Acid Sequence Leu29-Pro245 with Human IgG1 Fc at the C-Terminus
Expression System HEK293
Molecular Weight 60-70kDa
Conjugation FITC
Tag Human IgG1 Fc
Physical Appearance Liquid
Storage Buffer

PBS, pH7.4

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. A I Chapoval et al. B7-H3: a costimulatory molecule for T cell activation and IFN-gamma production.Nat Immunol. 2001 Mar;2(3):269-74.

Background

B7 homolog 3 (B7-H3, CD276) is a member of the B7 family of cell surface ligands that regulate T cell activation and immune responses. B7-H3 protein contains two extracellular Ig-like V-type domains and two IgG-like C2-type domains, a transmembrane domain, and a short intracellular domain. Early research examining the biological process of B7-H3 suggested that B7-H3 is a positive regulator of T cell response. Subsequent research studies indicated that B7-H3 is a negative regulator of T cell response, and that the protein inhibits T cell proliferation. One possibility is that B7-H3 interacts with two distinct sets of receptors, resulting in seemingly opposite biological outcomes. B7-H3 is expressed by antigen presenting cells, activated T cells, and a few normal tissues, including placenta and prostate. Expression of B7-H3 is seen in several cancer types, including prostate, breast, colon, lung, and gastric cancers, and in endothelial cells from tumor associated vasculature.

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Exchange/Return Notes
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SKU: 71727802688

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4.0 ★★★★★
Based on 18 reviews
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J
Verified Purchase
Joseph Raley
Boise, US
★★★★★ 5
Great socks
Size: Large, Color: (001) Black / Black / White
Great socks. Very comfortable. Use these socks for work. I walk up to 10 miles in 8 hours at work and these socks stay soft and in place when I get home
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
L
Verified Purchase
Lyndon
Cuba, US
★★★★★ 5
Good sock
Size: Large, Color: (100) White / White / Black
I love this socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
K
Verified Purchase
KJ
Belleville, US
★★★★★ 5
Super Comfortable and Great Quality!
Size: Medium, Color: (001) Black / Black / White
These Under Armour socks are hands down some of the best I’ve ever worn. They are incredibly soft, breathable, and provide just the right amount of cushioning for all-day comfort. Whether I’m working out, running errands, or just lounging around, they feel great on my feet. The fit is perfect—not too tight, but snug enough to stay in place without slipping down. Plus, they hold up well after multiple washes without losing their shape or softness. If you’re looking for high-quality, comfortable socks that feel amazing to wear, these are definitely worth it. Highly recommend!
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Reviewed in the United States on February 28, 2025
B
Verified Purchase
Brian
San Leandro, US
★★★★★ 4
Good sock, size is a little big
Size: Large, Color: (100) White / White / Black, Size: Large, Color: (100) White / White / Black
Good quality material and fairly thick. Size large for a 9.5 shoe is a little big for the foot portion as the heel sits too high but the overall length is good.
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Reviewed in the United States on May 17, 2026
M
Verified Purchase
McKay
Belleville, US
★★★★★ 5
Great sock
Size: Large, Color: (100) White / White / Black
Love these socks Fit great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026

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