SKU: 42251810377

APC Mouse Anti-Human CD19 Antibody (S-R503-2)

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Description

APC Mouse Anti-Human CD19 Antibody (S-R503-2)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 R503 2 Antibody Type Mouse mAb Isotype IgG1 Application FCM Reactivity Hu Positive Sample human PBMC Purification Protein G Concentration 0. 2 mg ml Conjugation APC Physical Appearance Liquid Storage Buffer PBS, 1% BSA, 0. 3%

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-R503-2
Antibody Type Mouse mAb
Isotype IgG1
Application FCM
Reactivity Hu
Positive Sample human PBMC
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 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: 42251810377

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4.1 ★★★★★
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Kelsey
Phoenix, US
★★★★★ 5
Malinois proof
Color: B) Medium 3" Ball
So far this has held up great. My Malinois who has destroyed nearly every ball I’ve gotten her, this one has lasted over 3 weeks without a dent, compared to some that don’t even last a day lol. Although the medium size is a little too big for her liking she still plays with it. It’s very durable and I like the middle part for engagement as well. I would recommend if you have a dog who destroys every ball possible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
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Verified Purchase
TERRIE GILLAND
Cuba, US
★★★★★ 5
Actually Durable
Color: B) Medium 3" Ball
One of the few "heavy duty" toys that my pittie hasn't destroyed after a couple of weeks. Most of them last two days. She's an absolute beast so I'm confident if she can't destroy it, few dogs can.
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Reviewed in the United States on April 28, 2026
C
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Cody
Louisville, US
★★★★★ 1
Not for aggressive chewers!
Color: H) Infinity Ring, Color: H) Infinity Ring
Not for aggressive chewers! Done for in about two minutes. I unboxed this and tugged with my Mal for a but then let her have it. Within minutes she had chewed through it. Not worth the money.
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Reviewed in the United States on April 10, 2026
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Verified Purchase
Nicole Lomonaco
Draper, US
★★★★★ 4
Dog ball
Color: A) Small 2.5" Ball
My dog enjoys but smaller than expected
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Reviewed in the United States on May 20, 2026
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Verified Purchase
Amy
Los Angeles, US
★★★★★ 5
Great tough ball
Color: A) Small 2.5" Ball
Great ball for dogs who like to destroy most any ball. Our girl loves this. Yay!!!
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Reviewed in the United States on March 17, 2026

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