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Description
APC Rat Anti-Mouse CD19 Antibody (S-R532)Product Specification Host Rat Antigen CD19 Synonyms B lymphocyte antigen CD19; Differentiation antigen CD19 Location Cell membrane Accession P25918 Clone Number S R532 Antibody Type Rat mAb Isotype IgG2a Application FCM Reactivity Ms Positive Sample C57BL 6 mouse splenocytes Purification Protein G Concentration 0. 2 mg ml Conjugation APC Physical Appearance Liquid Storage Buffer PBS, 1% BSA, 0. 3% Proclin 300 Stability & Storage 12 months from date
Product Specification
| Host | Rat |
| Antigen | CD19 |
| Synonyms | B-lymphocyte antigen CD19; Differentiation antigen CD19 |
| Location | Cell membrane |
| Accession | P25918 |
| Clone Number | S-R532 |
| Antibody Type | Rat mAb |
| Isotype | IgG2a |
| Application | FCM |
| Reactivity | Ms |
| Positive Sample | C57BL/6 mouse splenocytes |
| Purification | Protein G |
| Concentration | 0.2 mg/ml |
| Conjugation | APC |
| 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 | 5μl per million cells in 100μl volume | Ms |
Background
CD19 is a 95 kDa type I transmembrane glycoprotein that belongs to the immunoglobulin superfamily and is expressed on the surface of B lymphocytes and follicular dendritic cells. It plays a crucial role in B cell activation and humoral immune responses by forming a complex with CD21, CD81, and CD225. This complex reduces the threshold for B cell receptor (BCR) activation, enhancing downstream signaling pathways and facilitating B cell responses to antigens. CD19 is also a biomarker for B cell development and lymphoma diagnosis, and it is targeted in immunotherapies for diseases like leukemia.
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4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Works like magnesium, not certain on brain benefits. I like the brand.
Flavor Name: Unflavored, Size: 90 Count (Pack of 1)
I take magnesium near-daily and have for some time due to my diet. Mostly it's glycinate, though sometimes I'll take some citrate. This is my first experiment with l-threonate.
Before I get into this, I am not taking this as directed. I take 2 capsules during the day and usually take a different type of magnesium toward evening. I have about 40 capsules left, so I've taken a bit more than half the bottle so far.
Supposedly magnesium l-threonate may give you brain benefits over other types of magnesium. If it does, I'm not sure. It seems to have the same, general magnesium benefits for relaxation, sleep, muscles and nerves, but I don't notice any clear indication that my brain is working better: I'm thinking clearer, faster or am sharper mentally. This could be happening to a small degree, but other changes I've made could lead to this as well, so the waters are muddy there.
I'm going to cycle back to magnesium glycinate after I'm done with this bottle, or maybe open up my magnesium optimizer (also by Jarrow -- magnesium malate, b6, potassium and taurine), then come back to this again. See if there's any noticeable difference in my mental capabilities or focus. If I seem to see an association, I'll update this.
I like the brand. I've used their Magnesium Optimizer before and was pleased with that (bought another bottle), their fulvic acid / shilajit -- that seemed to work. I'm a fan. This magnesium is more expensive than other types, but at present I'm not sure that extra cost is worth it over a different type of magnesium.
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Reviewed in the United States on October 23, 2023
★★★★★ 5
Tremendously helpful for a restful nights sleep!
Flavor Name: Unflavored, Size: 90 Count (Pack of 2)
Jarrow is our go to brand for health supplements. Magmind is amazing - helps tremendously well for restful sleep. Even helps calm my wife's restless legs at night.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
Exceptional Brain Health Supplement – Highly Recommended!
Flavor Name: Unflavored, Size: 90 Count (Pack of 1)
Jarrow Formulas MagMind Brain Health with Magtein** is an outstanding dietary supplement that delivers on its promises. I’m delighted to give it a five-star review for its effectiveness, quality, and support for cognitive health.
The use of Magtein (Magnesium L-Threonate) in this supplement is a significant plus. This form of magnesium is known for its superior ability to cross the blood-brain barrier, making it particularly effective for brain health. I’ve noticed a positive impact on my memory and cognitive function since starting this supplement, which is exactly what I was hoping for.
The capsules are easy to take and well-tolerated. I appreciate that the supplement comes in a 90-capsule bottle, providing a 30-day supply, which is convenient for consistent use. The quality of the ingredients is evident, and Jarrow Formulas is a reputable brand known for its high standards in supplement manufacturing.
The benefits have been noticeable in my daily life. Improved focus and mental clarity are some of the key advantages I’ve experienced. It’s great to have a supplement that supports brain health and memory in such a practical and effective way.
Overall, **Jarrow Formulas MagMind Brain Health** is a top-notch supplement that lives up to its claims. It’s a fantastic choice for anyone looking to enhance their cognitive function and memory. I highly recommend it and give it five stars for its quality, effectiveness, and overall contribution to brain health!
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Reviewed in the United States on August 19, 2024
★★★★★ 5
A MAJOR shift for Mg supplements! No side effects and got off ReMag. Best product for me in years!
Flavor Name: Unflavored, Size: 90 Count (Pack of 1)
The big issue with magnesium: we need it, yet for most of us it causes intolerable side effects.
ReMag:
I started on ReMag (a liquid Mg) years ago. Dr. Dean's book sold me on taking Mg and it's helped. I did try a Mg pill supplement then and sure enough, major abdominal pain. But with ReMag I was able to get off of Rx anti acid reflux medication. Her ReMag liquid worked great without pain. BUT it ended up being more inconvenient than I would ever have realized. It's hard to remember to slowly dose throughout the day (I had timers going) and you can't carry a drink to some places. Even worse, if I missed it, got too much at once, or didn't get enough in EVERY day, my body would let me know in bad ways.
Jarrow:
Finally Jarrow solved this and I can take magnesium pills without the huge inconveniences mentioned. I decided to try it out and was able to smoothly transfer over to Jarrow without much issue. And absolutely NO side effects like the typical abdominal pain of other products.
I cannot recommend this product enough if you're looking for a magnesium supplement without side effects or like me you use ReMag but can't stand the the high maintenance of it.
It is helpful to know that if your body is magnesium depleted, starting on Mg may cause weird side effects like an anxiety attack. It's not the fault of the Mg product, it's due to having too little Mg for too long and the body needs time to adjust to getting it. Vitamin D is the same way. And being on anti acid reflux medication results in low Mg & D.
Dr. Dean's book thankfully explains all this.
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Reviewed in the United States on March 4, 2025
★★★★★ 5
Great quality for price
Flavor Name: Unflavored, Size: 90 Count (Pack of 2)
Great value for the quantity and quality. Easy to swallow, no issues.
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Reviewed in the United States on April 6, 2026
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