SKU: 49399284388

Alexa Fluor® 488 Mouse Anti-Human CD28 Antibody (S-R547)

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Description

Alexa Fluor® 488 Mouse Anti-Human CD28 Antibody (S-R547)Product Specification Host Mouse Antigen CD28 Synonyms T cell specific surface glycoprotein CD28; TP44 Location Cell membrane Accession P10747 Clone Number S R547 Antibody Type Mouse mAb Isotype IgG1 Application FCM Reactivity Hu Positive Sample human peripheral blood lymphocytes Purification Protein G Concentration 0. 05mg ml Conjugation Alexa Fluor 488 Physical Appearance Liquid Storage Buffer PBS, 25% Glycerol, 1% BSA, 0. 3% Proclin 300 Stability &

Product Specification


Host Mouse
Antigen CD28
Synonyms T-cell-specific surface glycoprotein CD28; TP44
Location Cell membrane
Accession P10747
Clone Number S-R547
Antibody Type Mouse mAb
Isotype IgG1
Application FCM
Reactivity Hu
Positive Sample human peripheral blood lymphocytes
Purification Protein G
Concentration 0.05mg/ml
Conjugation Alexa Fluor® 488
Physical Appearance Liquid
Storage Buffer

PBS, 25% Glycerol, 1% BSA, 0.3% Proclin 300

Stability & Storage 12 months from date of receipt / reconstitution, 2 to 8 °C as supplied.

Dilution


application dilution species
FCM 5 μl per million cells in 100μl volume Hu

Background

CD28, also known as the T-cell-specific surface glycoprotein CD28, is a protein encoded by the CD28 gene in humans. It is a glycoprotein that is constitutively expressed on both resting and activated T cells. CD28 plays a crucial role in T cell activation and signaling, providing essential co-stimulatory signals required for T cell activation, proliferation, and cytokine production. It enhances the production of IL4 and IL10 in T cells in conjunction with TCR/CD3 ligation and CD40L co-stimulation. CD28 interacts with its ligands, CD80 (B7-1) and CD86 (B7-2), which are expressed on antigen-presenting cells, to mediate the co-stimulatory signals necessary for T cell activation. This interaction is critical for the early events of T cell activation and the decision between immunity and anergy.

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SKU: 49399284388

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Charlottesville, US
★★★★★ 5
They aren't super firm; they are more comfortable than rigid 😊
Color: White, Size: King Size Set of 2
I bought these pillows, and honestly, I really liked them. They have a medium firmness that helps significantly with neck pain, yet they remain soft and fluffy without going flat during the night. They hold their shape well and have good loft, so you don't have to keep adjusting them constantly. They don't have any unpleasant odor right out of the package, nor do they slide around much inside the pillowcase something I really appreciate. Overall, they feel comfortable and are of good quality for sleeping in any position.
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Reviewed in the United States on March 26, 2026
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Lexington, US
★★★★★ 5
100% Cotton Pillows .
Color: White, Size: Queen Size Set of 2, Color: White, Size: Queen Size Set of 2
These pillows feel soft and fluffy without being too flat. They provide nice support for the neck and feel comfortable whether sleeping on your side or back. After several nights of use, they still keep their shape well and don’t feel too warm during the night. The set comes with two pillows, which makes it really practical for the bed.
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Reviewed in the United States on May 13, 2026
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Westmart
Los Angeles, US
★★★★★ 5
Luxury Comfort and Perfect Support – Best Pillows Ever!
Color: White, Size: King Size Set of 2
I recently purchased the Serta Hotel collection Pillows White Goose Feather Down Fiber Gusseted, and I couldn’t be happier with my choice! These pillows are the perfect balance of softness and support — plush enough to feel luxurious, yet firm enough to keep my neck properly aligned all night. The gusseted edges really make a difference, helping the pillow hold its shape and look full even after weeks of use. The quality of the materials is excellent — the outer cover feels smooth and breathable, and there’s no feather poking out like with cheaper options. I also appreciate that they fluff back up easily after use, making the bed look hotel-perfect every morning. If you’re looking for comfortable, high-quality pillows that provide great value for the price, I highly recommend these. They’ve truly improved my sleep!
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Reviewed in the United States on October 7, 2025
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Kristan P.
Whiting, US
★★★★★ 4
Good quality pillows
Color: White, Size: Queen Size Set of 2
These are very soft and supportive as advertised. W find them a little too thick for my taste (why I only gave 4 stars), but personal preference is very subjective with pillows. They are well made and high quality, and am happy with my purchase.
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Reviewed in the United States on January 15, 2026
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Troy D.
Los Angeles, US
★★★★★ 3
Overall, not that comfortable!
Color: White, Size: Queen Size Set of 2
Only okay. I find these pillows to be heavy, and not very conforming. Overall, not that great.
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Reviewed in the United States on May 21, 2026

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