SKU: 43605981643

Alexa Fluor® 700 Mouse Anti-Human CD19 Antibody (S-3522)

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Description

Alexa Fluor® 700 Mouse Anti-Human CD19 Antibody (S-3522)Product Specification Host Mouse Antigen CD19 Synonyms B lymphocyte antigen CD19; B lymphocyte surface antigen B4; Differentiation antigen CD19; T cell surface antigen Leu 12 Location Cell membrane Accession P15391 Clone Number S 3522 Antibody Type Mouse mAb Isotype IgG1,k Application FCM Reactivity Hu Positive Sample human peripheral blood lymphocytes Purification Protein G Concentration 0. 2 mg ml Conjugation Alexa Fluor 700 Physical Appearance

Product Specification


Host Mouse
Antigen CD19
Synonyms B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; Differentiation antigen CD19; T-cell surface antigen Leu-12
Location Cell membrane
Accession P15391
Clone Number S-3522
Antibody Type Mouse mAb
Isotype IgG1,k
Application FCM
Reactivity Hu
Positive Sample human peripheral blood lymphocytes
Purification Protein G
Concentration 0.2 mg/ml
Conjugation Alexa Fluor® 700
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

CD19, also known as B-lymphocyte antigen CD19 or B-Lymphocyte Surface Antigen B4, is a 95 kDa type I transmembrane glycoprotein that belongs to the immunoglobulin superfamily and is encoded by the CD19 gene. It is primarily expressed on all B lineage cells, from early pro-B cells to plasma cells, and plays a crucial role in B cell development, activation, and signaling. As a co-receptor, CD19 enhances signaling through the B cell receptor (BCR) complex, lowering the threshold for B cell activation and promoting B cell proliferation and differentiation. It forms a complex with CD21, CD81, and other proteins, which helps in the recognition of antigens tagged with complement and amplifies BCR signaling. CD19 is also a biomarker for B cell-related diseases and a target for immunotherapies, including monoclonal antibodies and CAR-T cell therapies, due to its consistent expression on B cells and B cell malignancies.

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SKU: 43605981643

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4.4 ★★★★★
Based on 26 reviews
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BearFire
West Palm Beach, US
★★★★★ 5
I Hit It With the Dryer and It Became a Real Pillow!
Size: Queen
This DreamyBlue Moon Pillow made a much better first impression than I expected. Out of the package it looked like it needed a pep talk, so I threw it in the dryer to fluff it up and it came back with purpose. Just full on BAM. Pillow achieved. The shape is one of the best parts. It actually feels like a pillow that wants to do its job right. Not too weird, not awkwardly bulky, not one of those ones that looks promising until you lay down and realize your head is now parked on a bag of chopped foam and bad decisions. I also really liked being able to customize it. That part matters more than people think. Pillows are weirdly personal, and most of them give you exactly one option: deal with it. This one lets you adjust the fill until it actually feels right, which is a whole lot better than waking up annoyed and pretending it is fine. And for anyone wondering, mine did not have any weird smell. No chemical funk. No “maybe this needs to live on the porch for a day” situation. It just fluffed up, felt good, and got to work. Overall, this has been a solid win. Comfortable shape, easy to adjust, and none of the usual nonsense. Which, for a pillow, is honestly a strong performance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
A
Verified Purchase
Amy Bedell
Grantham, US
★★★★★ 5
Soft yet supportive
Size: Queen
I have been through 4 other pillows in the last year trying to find one that supports but isn't too firm. I gave this one a shot and am really loving it. It's soft, comfortable, supports without hurting my neck or shoulder. I am short so some pillows are too high for me. I'm mainly a siide sleeper, this pillow is great as I can place my head anywhere not just middle of very end like the other pillows I was trying. I can sink into it a little yet still have support and it doesn't crush down. It comes with more filler but haven't needed it. I put it in the dryer on ultra delicate when I first got it and it fluffed nicely. Very happy with this product as I am now getting more sleep.
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Reviewed in the United States on February 25, 2026
E
Verified Purchase
Elmira U.
Draper, US
★★★★★ 5
Absolutely in love with this pillow!
Size: King, Size: King
I’m so excited about this purchase — this pillow turned out to be amazing! I’m a side sleeper most of the time, and the way the edges are designed makes it incredibly comfortable and supportive. What really surprised me is that even when I slept on my back (which I normally don’t like), I felt super comfortable. I actually woke up still lying on my back — and that never happens! I know it’s healthier to sleep that way, so I’m really happy about that and hope it becomes a new habit. Before this, I tried a few regular memory foam pillows, but they always felt too firm and my neck would get tired. This one, with the shredded memory foam, is so soft and cozy — it molds perfectly without feeling lumpy. The King size is perfect too — my little Pomeranian loves to rest his tiny head next to mine on the pillow. I don’t know why he does that, but it’s adorable. And I have to mention the packaging — the box was so high-quality and beautifully made that I just couldn’t throw it away. I’m definitely keeping it to store something in. Overall, I’m super happy with this pillow and will be ordering a second one soon. I only got one to test it out, but now I’m totally convinced. Thank you for such an awesome product!
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Reviewed in the United States on October 26, 2025
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Your Royal Highness
Boise, US
★★★★★ 4
Great pillow !
Size: Queen
This pillow met my expectations. Very comfortable with the right amount of firmness. Love the shape as well.
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Reviewed in the United States on January 6, 2026
R
Verified Purchase
Rosemary S.
Omaha, US
★★★★★ 5
This is everything you could want in a good pillow for a good sleep
Size: Queen
This is truly the very best pillow on the planet. So really comfortable, doesn't loose its shape and for a good sleep, this is it.
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Reviewed in the United States on May 5, 2026

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