SKU: 40490206009

PE Mouse Anti-Human CD28 Antibody (S-R495)

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Description

PE Mouse Anti-Human CD28 Antibody (S-R495)Product Specification Host Mouse Antigen CD28 Synonyms T cell specific surface glycoprotein CD28; TP44; CD28 Location Cell membrane Accession P10747 Clone Number S R495 Antibody Type Mouse mAb Isotype IgG1 Application FCM Reactivity Hu Positive Sample human PBMC Purification Protein G Concentration 0. 2 mg ml Conjugation PE Physical Appearance Liquid Storage Buffer PBS, 1% BSA, 0. 3% Proclin 300 Stability & Storage 12 months from date of receipt

Product Specification


Host Mouse
Antigen CD28
Synonyms T-cell-specific surface glycoprotein CD28; TP44; CD28
Location Cell membrane
Accession P10747
Clone Number S-R495
Antibody Type Mouse mAb
Isotype IgG1
Application FCM
Reactivity Hu
Positive Sample human PBMC
Purification Protein G
Concentration 0.2 mg/ml
Conjugation PE
Physical Appearance Liquid
Storage Buffer

PBS, 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 1.25μl 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: 40490206009

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4.6 ★★★★★
Based on 25 reviews
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Shooter
Belleville, US
★★★★★ 4
Nice economy casual sweater,
Size: Large, Color: Off-white
The sweater is fine for the price, with correct fit. Arrived fast. Nice neutral cream/oatmeal color. It has a fairly loose open weave and is predominantly cotton, so it’s quite breathable and well suited for layering in cool but not truly cold weather. The knit is a little coarse, not really scratchy but not very soft. It’s a good value for what they charge. And fine for casual wear. But I ultimately decided to return it and spend a lot more to get a merino wool sweater because they are dressier, much warmer for weight, MUCH softer, and less bulky under a jacket. I like to wear mock turtlenecks under a sport coat in the fall and this sweater was a little too thick for that.
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Reviewed in the United States on December 8, 2023
R
Verified Purchase
Ralph A.
Chelsea, US
★★★★★ 5
Soft and comfortable but runs a bit large
Size: Medium, Color: Off-white
I got this turtleneck in the off white color, and it looks very clean and easy to style. The color is true to what is shown and works well with casual or more dressed up outfits. The fabric feels soft and has a nice amount of stretch, which makes it comfortable to wear for longer periods without feeling stiff. The sweater feels lightweight but still warm enough for cooler days. It is not heavy or bulky, so it layers easily under jackets or coats. It also seems fairly wrinkle resistant. After wearing it and folding it, it still looked neat without needing much adjustment. In terms of fit, it does run a little big. I usually wear a medium, and while this one is still wearable, it feels slightly looser than expected, especially through the body. It is not a big deal, but I would probably order a smaller size next time for a more fitted look. The turtleneck itself sits comfortably around the neck and does not feel tight or irritating. Overall, it feels like a comfortable and easy to wear piece with good stretch, a nice lightweight feel, and a clean look. Just something to keep in mind on sizing if you prefer a closer fit.
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Reviewed in the United States on December 18, 2025
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Verified Purchase
Brittany
Houston, US
★★★★★ 3
Don’t recommend
Size: Medium, Color: Black
Got this as a last minute shirt for an event and it was roughly $12 on sale. The quality was ok, first wear was fine but it doesn’t hold up after washing and air drying. I don’t recommend unless only wearing once, there was a lot of shedding and pilling after the first wear. I’m rough 5 ft tall and about 140 lbs. and I got a M and it sat around my hips so unless your on the tall side this wouldn’t fit.
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Reviewed in the United States on January 7, 2026
R
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Reviewer
Boise, US
★★★★★ 5
Couldn't Be Better.
Size: Medium, Color: Charcoal Marl
Soft, warm, comfortable--and inexpensive.
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Reviewed in the United States on March 21, 2026
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Tyrone Carter
Birmingham, US
★★★★★ 5
The color
Size: Medium, Color: Black
Good fit an so comfortable
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Reviewed in the United States on April 7, 2026

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