NA/LE Mouse anti-human CD28 mAb
SKU: 71649093196

NA/LE Mouse anti-human CD28 mAb

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Description

NA/LE Mouse anti-human CD28 mAbProduct Specification Host Mouse Antigen CD28 Synonyms TP44 Accession P10747 Clone Number 9. 3 Antibody Type Mouse mAb Isotype IgG2a,k Isotype Control Invivo mouse IgG2a isotype control Application in vitro T cell stimulation activation Reactivity Hu Purification Protein A Concentration 5 mg ml Endotoxin <2EU mg Conjugation Unconjugated Physical Appearance Liquid Storage Buffer PBS pH7. 4, containing no preservative Stability & Storage 2 to 8 C for 2

Product Specification


Host Mouse
Antigen CD28
Synonyms TP44
Accession P10747
Clone Number 9.3
Antibody Type Mouse mAb
Isotype IgG2a,k
Isotype Control Invivo mouse IgG2a isotype control
Application in vitro T cell stimulation/activation
Reactivity Hu
Purification Protein A
Concentration 5 mg/ml
Endotoxin <2EU/mg
Conjugation Unconjugated
Physical Appearance Liquid
Storage Buffer PBS pH7.4, containing no preservative
Stability & Storage

2 to 8 °C for 2 weeks under sterile conditions;

-20 °C for 3 months under sterile conditions; 

-80 °C for 24 months under sterile conditions.

Please avoid repeated freeze-thaw cycles.

Background

This antibody recognizes the same epitope as clone 9.3. CD28 (Cluster of Differentiation 28) is one of the proteins expressed on T cells that provide co-stimulatory signals required for T cell activation and survival. T cell stimulation through CD28 in addition to the T-cell receptor (TCR) can provide a potent signal for the production of various interleukins (IL-6 in particular). CD28 is the receptor for CD80 (B7.1) and CD86 (B7.2) proteins. When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen-presenting cells (APCs). The CD86 expression on antigen-presenting cells is constitutive (expression is independent of environmental factors). It is generally reported, that CD28 is expressed on 50% of CD8+ T cells and more than 80% CD4+ T cells in human, but during the course of activation some T cells lose this molecule. In general, CD28 is a primary costimulatory molecule for T cell activation.

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Exchange/Return Notes
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SKU: 71649093196

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Shawn SnoMan Thompson
Grantham, US
★★★★★ 5
For work or casual wear, this polo is a great choice.
Material Type: Recycled Polyester, Color: Port Stripe, Size: X-Large
I really like this polo. I've been wearing it once a week or every other week since November. Its very comfortable and breathable. This polo feels like it should last a while. The fit is good. I typcally wear XL and this XL fits great. I've pruchased it in both burgundy and black so far. I definitely recommend this shirt. For work or casual wear, this will look good.
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Reviewed in the United States on January 11, 2026
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Tech Dad
Alexandria, US
★★★★★ 5
Great value: These are my go-to work from home shirt
Material Type: Recycled Polyester, Color: Blue, Size: X-Large
I’ve been pleasantly surprised by these shirts and wear them weekly for Zoom calls, since I’m still working from home these days. I figured at the price point it was worth trying them out, and now I’ve bought several in different colors. They aren’t super soft, but they are comfy and look nice. I’m 6’1” ~220 pounds, and the XL slim fit still has plenty of room. I imagine the regular cut is incredibly boxy and oversized. The difference between polyester vs recycled polyester is inconsequential. I typically buy expensive golf shirts, and these definitely aren’t as nice. They are a fraction of the cost though and a great “beater” work shirt / hang out shirt. It’s nice wearing something that looks and feels decent, but if something happens to it, you can toss and it and pick up another for the cost of a chipotle burrito.
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Reviewed in the United States on May 29, 2022
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Espresso
New York, US
★★★★★ 3
Great price, not great quality
Material Type: Recycled Polyester, Color: Black, Size: Small
Simple, straight forward all black polo. I am a size medium woman (with some room since I don't like form-fitting) and bought a men's small. Fits perfectly for my frame. Long enough to tuck in for my part-time extra weekend job uniform. Also suitable for the golf course. A little thin, and if you hold it up to light you can sort of see through it. *Not* flowy, soft and smooth fabric like a rash guard/sun shirt - more structured than that. But it's cool and does the job for the price under $10.
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Reviewed in the United States on August 13, 2024
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Ken Strech
Draper, US
★★★★★ 5
Recommend
Material Type: Recycled Polyester, Color: Dark Navy, Size: X-Large
Great fit, right price
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Reviewed in the United States on March 18, 2026
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Gwen
Houston, US
★★★★★ 5
Nice polo
Material Type: Recycled Polyester, Color: Dark Teal, Size: Medium
Fantastic polo shirt. Size was true to fit. Color is amazing. It’s soft and it has held up through washes since Christmas.
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Reviewed in the United States on March 14, 2026

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