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Product Details

The UCHT1 monoclonal antibody specifically binds to the human CD3ε-chain, a 20-kDa subunit of the CD3/T cell antigen receptor complex. CD3ε is expressed on 70-80% of normal human peripheral blood lymphocytes and 60-85% of thymocytes. Studies from the HLDA Workshop show that this antibody is mitogenic for CD3ε-positive cells when used in conjunction with costimulatory agents such as mitogen or anti-CD28 antibody. CD3 plays a central role in signal transduction during antigen recognition.  The UCHT1 antibody stains both surface and intracellular CD3ε unlike the other CD3 clone, HIT3a, that stains only extracellular CD3ε.

The antibody was conjugated to BD Horizon™ BUV395 which has been exclusively developed by BD Biosciences as an optimal dye for use on a 355 nm laser equipped instrument. With an Ex Max at 348 nm  ａnd an Em Max at 395 nm, this dye has virtually no spillover into any other detector. BD Horizon™ BUV395 can be excited with a 355 nm laser and detected with a 379/28 filter.

Brａnd	BD Horizon™
Alternative Name	CD3e; CD3E; T3E; TCRE; T-cell surface antigen T3/Leu-4 epsilon
Reactivity	Human (QC Testing)
Isotype	Mouse BALB/c IgG1, κ
Immunogen	Human infant thymocytes and peripheral blood lymphocytes from a Sézary Syndrome donor
Application	Flow cytometry (Routinely Tested)
Vol. Per Test	5 μl
Workshop Number	I WT3; III 471
Entrez Gene ID	916
RRID	AB_2744387
Storage Buffer	Aqueous buffered solution containing BSA and ≤0.09% sodium azide.
Regulatory Status	RUO

Supporting data and figures

BUV395

The BD Horizon Brilliant™ Ultraviolet 395 (BUV395) Dye is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This base dye is a polymer fluorochrome with an excitation maximum (Ex Max) of 348-nm and an emission maximum (Em Max) at 395-nm. Driven by BD innovation, BUV395 is designed to be excited by the ultraviolet laser (355-nm) and detected using an optical filter centered near 380-nm (e.g., 379/28-nm bandpass filter). BUV395 is the ideal dye when using only one detector on the ultraviolet laser as it spills into no other detectors and no other fluors spill into it. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.

Preparation and storage

1. An isotype control should be used at the same concentration as the antibody of interest.

2. Source of all serum proteins is from USDA inspected abattoirs located in the United States.

3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.

4. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at 

5. This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-μl experimental sample (a test).