SKU: 40659614771

Alexa Fluor® 488 Mouse Anti-Rat CD45RA Antibody (S-R629)

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Description

Alexa Fluor® 488 Mouse Anti-Rat CD45RA Antibody (S-R629)Product Specification Host Mouse Antigen CD45RA Synonyms Leukocyte common antigen; high molecular weight form Location Cell membrane Accession 24699 Clone Number S R629 Antibody Type Mouse mAb Isotype IgG1,k Application FCM Reactivity Rt Positive Sample SD Rat splenocytes Purification Protein G Concentration 0. 2 mg ml Conjugation Alexa Fluor 488 Physical Appearance Liquid Storage Buffer PBS, 1% BSA, 0. 3% Proclin 300 Stability & Storage 12 months

Product Specification


Host Mouse
Antigen CD45RA
Synonyms Leukocyte common antigen; high molecular weight form
Location Cell membrane
Accession 24699
Clone Number S-R629
Antibody Type Mouse mAb
Isotype IgG1,k
Application FCM
Reactivity Rt
Positive Sample SD Rat splenocytes
Purification Protein G
Concentration 0.2 mg/ml
Conjugation Alexa Fluor® 488
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 Rt

Background

CD45RA protein is a specific isoform of the CD45 receptor, also known as protein tyrosine phosphatase receptor type C (PTPRC), which is generated through alternative splicing of the CD45 gene. It is a marker for naive T cells and central memory T cells (TCM), characterized by the presence of exon 4 (A) but the absence of exons 5 (B) and 6 (C) in its mRNA. CD45RA is expressed on the surface of nucleated hematopoietic cells, including B cells, NK cells, naive/resting T cells, medullary thymocytes, and plasmacytoid dendritic cells. It plays a crucial role in the immune system by modulating T cell receptor (TCR) and B cell receptor (BCR) signaling pathways, facilitating the activation and proliferation of immune cells. In adults, CD45RA+ cells may help prevent autoimmune diseases, while reduced numbers of CD45RA+ CD4+ T cells have been associated with conditions such as biliary atresia, primary biliary cirrhosis, fetal distress, and preeclampsia. Pathologists use CD45RA to differentiate naive T cells (CD45RA+) from memory T cells (CD45RO+), although this distinction may not be applicable in adult allogeneic hematopoietic cell transplant recipients.

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SKU: 40659614771

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4.8 ★★★★★
Based on 26 reviews
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I
Verified Purchase
Ivan Infante
Pawtucket, US
★★★★★ 5
Our Frenchie loves this toy
Size: One Size
Our Frenchie loves to pull and tug. She also loves to run after balls. The two in one makes it the perfect toy for her. We've been using it for over 8 months and while it does have some wear and tear... it's lasted a lot longer than her other today. She likes to grab the rope and run around the grass (sometimes getting too excited and tripping over the ball). As soon as we have to throw this one away... there's no doubt we are getting another one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 16, 2021
C
Verified Purchase
cindy l
Dallas, US
★★★★★ 5
This is perfect for puppies. And small to medium dogs without strong biting jaws
Size: One Size
My border collie loved this as a puppy but wore out the rope. I got her another now that she is a year old and she loves it still but the rope showed wear almost immediately. She runs dragging it behind her and watching it bounce and she also swings it back and forth banging it on her head often but, it's so lightweight I don't worry that she's doing any harm to herself.
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Reviewed in the United States on April 30, 2024
B
Verified Purchase
Becky Guenther
Alexandria, US
★★★★★ 4
Love this toy
Size: One Size
I buy these all the time for my dog. They’re the easiest for me to throw and the dog loves them. The only reason they don’t get five stars as because the stitching comes out after a couple months. Therefore, I have to continuously buy them. Because of the fact that they are way easier to throw other balls and they’re easy to see also.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Great Toy
Size: One Size
My three year old loves to play fetch and this dog toy was perfect for him. With the bright, signature orange and blue colors, he can easily spot it when I throw it even in the night. He really loves it when it bounces on the ground as he prefers to jump up and get it. The toy has been through a lot and so far he hasn't chewed through it yet as it is very thick for him to get through.
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Reviewed in the United States on May 10, 2026
E
Verified Purchase
Elli B
Cuba, US
★★★★★ 1
Lasted whole five minutes!
Size: One Size, Size: One Size
I received this last night and did a cute "unwrapping" this morning for my dog, who was thrilled to get new balls. Unfortunately, the excitement was short-lived. I know the description says this isn't a chew toy or for aggressive chewers, but lasting only five minutes is ridiculous. You can see in my photo that it ripped from a single bite while my pup was just pulling the ball. I thought that was exactly what this toy was designed for!
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Reviewed in the United States on April 12, 2026

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