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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4.2 ★★★★★
Based on 18 reviews
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A
Verified Purchase
Adarius Carr Prime
Boise, US
★★★★★ 5
Great value for the price
Style: White, Size: 24" Jumbo
I have gotten smaller versions of this Lamb chop, my dog has loved them all the same but this one is great. It's big enough for him to carry around and it lasts a lot longer since he likes to tear them up fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
K
Verified Purchase
Kimmi Bear
Phoenix, US
★★★★★ 3
This version is ok, but NOT for my boy-The 24in Jumbo version is the perfect toy for Kota-Ghost.
Style: White, Size: 24" Jumbo, Style: White, Size: 24" Jumbo
Adorable & nice but... I hate writing adverse reviews but I had to for this one. It lasted exactly 1 minute. 30 seconds of that was Ghost pulling the rest of the stuffing out to completely gut this Lambie. I know what happened-The material on the chest and the little red buttons were the issue. Cute as it may be, that material is terrible. My Great Pyrenees/AmStaff/Golden Retriever Mix boy, Kota-Ghost, very rarely tears his stuffy squeaky toys up. He is only 7 months old and has only shown interest in tearing something up if it was already broken(had an existing rip or tear)This is only the 2nd or 3 toy he has torn up in his whole life(and he literally has at least 30 stuffy toys(some left by my sweet Bella--she passed away in March but most are brand new because when I saw he wasn't a Destructo-Dog, I went a bit overboard buyin him stuffies-So much that my Hubs was not happy with me but he was secretly glad I did it😈.) See my review for the Jumbo Lambchop toy-That toy was and IS quite possibly the best stuffed squeaky toy available for bigger dogs. Only the MultiPet brand Jumbo tho-There are other brands that arent great. You can tell by the materials used on the face of the real Jumbo 24 inch ones from MultiPet. The Jumbo was a much better experience for us! I have also ordered the smaller one for him becuz he really wants the cat's lambie toy too. They have the 6 inch, not the "cat toy" version and they(and Ghost)love it. No one tears it up. I'll review it once his is delivered because while I know he doesnt rip the 6 inch one apart it is technically the cat's toy(not his) and we usually make him give it back to them pretty quickly. Ill review it when he gets his own & is allowed to do whatever he chooses. Hopefully he will treat it like Jumbo Lambie...Ok well, maybe not exactly that way cuz...Well, Lets just say he gets very, erhmm, frisky with his Jumbo Lambie. He doesnt like when we wash her but we do. Unfortunately he tries to take her outside in the dirt and/or in the pool with him. I will mention that more in my review for Jumbo Lambie. As for this standing up version-It MIGHT be fine for your dog or cat but it definitely was not durable for my Ghostie. It is a good size for a smaller/medium sized dog but definitely not good for puppies & especially those that still have their deciduous(milk/needle)teeth and not for even light to moderate chewers due to the material on the chest. That's what made Ghost tear his up. He nicked it with his teeth, a hole formed and that was apparently his cue to rip the squeaker out & tear the poor toy to shreds-He did have fun doing it tho. Haha. For some dogs this toy might be great fun. It is definitely a great brand and the jumbo version is Ghost's fave toy of all time. Pricing on all of MultiPet's dog toys are amazing and I hope they stay that way! We keep several of the Jumbo Lambies here in case one "goes swimming" so we can wash it and he has one to carry/cuddle or in case one gets temporarily left behind somewhere cuz he wants to take it everywhere he goes. We let him bring her along except for on walks
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Reviewed in the United States on October 24, 2025
G
Verified Purchase
GOSIA KOSSAKOWSKI
Battle Creek, US
★★★★★ 5
ytilauq doog
Color: Orange
toy seems good quality and looks durable. I got if formy smaller terrier, but he prefers his old toy, however he likes when I squeak it and throw, he can carry it.
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Reviewed in the United States on June 3, 2026
T
Verified Purchase
Tally-Ho
Dallas, US
★★★★★ 5
Really durable
Color: Blue
Solid but not hard enough to break teeth. My dog likes this toy and won’t be chewing through it because it’s quite durable!
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Reviewed in the United States on April 6, 2026
J
Verified Purchase
Jenny boyle
Fort Morgan, US
★★★★★ 5
Perfect for destroyers lol!
Color: Green
Very durable and it still squeaks but he cant destroy it! Soft enough so he won't bust a tooth! He loves it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

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