Invitrogen™ CD73 Monoclonal Antibody (AD2), eFluor™ 450, eBioscience™

Catalog No.	Quantity
50-112-9276	100 Tests

Catalog No. 50-112-9276 Supplier Invitrogen™ Supplier No. 48073942

Description

Mouse Monoclonal Antibody

This AD2 monoclonal antibody reacts with human CD73, a 5'-ectonucleotidase that converts 5'-adenosine monophosphate to adenosine. CD73 is expressed on the surface of endothelial cells, as well as B and T cells, including some CD4+Foxp3+ regulatory T cells. Adenosine production by these cells has been linked to the inhibition of CD4 T cell effector functions such as proliferation and cytokine secretion. Applications Reported: This AD2 antibody has been reported for use in flow cytometric analysis. Applications Tested: This AD2 antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at 5 μL (0.25 μg) per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. eFluor 450 is an alternative to Pacific Blue. eFluor 450 emits at 445 nm and is excited with the Violet laser (405 nm). Please make sure that your instrument is capable of detecting this fluorochome. Excitation: 405 nm; Emission: 445 nm; Laser: Violet Laser. Filtration: 0.2 μm post-manufacturing filtered.

CD73, also known as Ecto-5-prime-nucleotidase or 5-prime-ribonucleotide phosphohydrolase, is an enzyme that catalyzes the conversion of purine 5-prime mononucleotides to nucleosides at neutral pH, with AMP as its preferred substrate. It is composed of a dimer of two identical 70 kDa subunits, externally bound to the plasma membrane via a glycosyl phosphatidyl inositol linkage. CD73 serves as a marker of lymphocyte differentiation and is expressed on a subset of lymphocytes, increasing during lymphocyte maturation. It is found on memory CD4 T cells, which resemble uncommitted primed precursor helper cells (Thpp) capable of differentiating into Th1 or Th2 cells, and is also present on regulatory T cells. CD73 deficiency is associated with various immunodeficiency diseases. Other forms of 5-prime nucleotidase exist in the cytoplasm and lysosomes, distinguishable from CD73 by their substrate affinities, requirement for divalent magnesium ions, activation by ATP, and inhibition by inorganic phosphate. The CD73 gene is localized to chromosome 6q14-q21, and defects in this gene can lead to conditions such as calcification of joints and arteries, and intestinal tuberculosis. Additionally, two transcript variants encoding different isoforms of CD73 have been identified.

Specifications

• Antigen: CD73
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: AD2
• Concentration: 5 μL/Test
• Conjugate: eFluor 450
• Formulation: PBS with BSA and 0.09% sodium azide; pH 7.2
• Gene: NT5E
• Gene Accession No.: P21589
• Gene Alias: 2210401F01Rik; 5 nucleotidase, ecto; 5' nucleotidase, ecto; 5'-NT; 5'-nucleotidase; 5'-nucleotidase ecto; 5'-nucleotidase, ecto (CD73); AI447961; CALJA; CD73; E5NT; ecto-5'-nucleotidase; eN; eNT; NT; Nt5; Nt5e; NTE; Purine 5-Prime-Nucleotidase
• Gene Symbols: NT5E
• Host Species: Mouse
• Purification Method: Affinity chromatography
• Quantity: 100 Tests
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 4907
• Target Species: Human
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG1 κ

Frequently Asked Questions (FAQs)

I am unable to analyze my cells stained with eFluor Organic Dyes today. What options do I have?

Our options will depend on the samples you are analyzing.

If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.

For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.

What buffers are compatible with the eFluor Organic fluorochromes and eVolve QDots?

The eFluor Organic fluorochromes and eVolve QDots can be used with flow staining buffers containing PBS and protein.

What is the difference between eFluor Organic Dyes and eVolve Qdots?

The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.