Product Information

Contents: eFluor^TM 605^NC anti-human CD4
Catalog Number: 93-0048
Sizes: 25 tests, 100 tests
Formulation: aqueous buffer, 0.09% sodium azide, with stabilizer if necessary
Storage Conditions: Store at 4°C.
DO NOT FREEZE.
LIGHT-SENSITIVE MATERIAL.
Clone: OKT4 (OKT-4)
Isotype: Mouse IgG2b

Staining of normal human peripheral blood cells with Pacific Blue anti-human CD3 (UCHT1) (cat. 57-0038) and eFluor™ 605^NC Mouse IgG2b Isotype Control (cat. 93-4732) (left) or eFluor™ 605^NC anti-human CD4 (OKT4) (right). Cells in the lymphocyte gate were used for analysis.

Available Formats of This Product
Cat. No.	Format	Excite (nm)	Emit (nm)	Reported Applications
14-0048	Affinity Purified anti-human CD4	N/A	N/A	FC IP
16-0048	Functional Grade* Purified anti-human CD4	N/A	N/A	FC IP
13-0048	Biotin anti-human CD4	N/A	N/A	FC
11-0048	Fluorescein isothiocyanate (FITC) anti-human CD4	488	518	FC
12-0048	Phycoerythrin (PE) anti-human CD4	488	575	FC
17-0048	Allophycocyanin (APC) anti-human CD4	633	660	FC
35-0048	Phycoerythrin-Cy5.5 (PE-Cy5.5) anti-human CD4	488	690	FC
51-0048	Alexa Fluor® 647 anti-human CD4	633	668	FC
53-0048	Alexa Fluor® 488 anti-human CD4	488	519	FC
56-0048	Alexa Fluor® 700 anti-human CD4 (APC-Cy5.5 Equivalent)	633	723	FC
57-0048	Pacific Blue® anti-human CD4	402	421	FC
45-0048	PerCP-Cy5.5 anti-human CD4 (PE-Cy5.5 replacement)	488	690	FC
93-0048	eFluor^TM 605^NC anti-human CD4	350-500	605	FC
*Functional Grade™ (FG™) Purified: Azide-free, sterile-filtered, and endotoxin < 0.001 ng/µg (unless otherwise noted). *Functional Grade™ (FG™) Biotin: Azide-free, sterile-filtered, and endotoxin < 0.05 ng/µg. Purified: Contains azide, not sterile-filtered, and not endotoxin tested.
Flow Cytometry Product Notes: Test Sizes: To accommodate multicolor flow cytometry, eBioscience is in the process of reducing test size volumes from 20 µl to 5 µl. Please check your antibody vial for the recommended test size. Fluorochrome Replacements: eBioscience is in the process of replacing all Pacific Blue® and APC-Alexa Fluor® 750 conjugated products with eFluor™ 450 and APC-eFluor™ 780 conjugated products, respectively.

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Description

The OKT4 monoclonal antibody reacts with human CD4, a 59 kDa cell surface glycoprotein expressed by the majority of thymocytes, a subpopulation of mature T cells (T-helper cells) and in low levels on monocytes. CD4 is a receptor for the human immunodeficiency virus (HIV). The OKT4 antibody recognizes a different epitope than the RPA-T4 monoclonal antibody, and these antibodies do not cross-block binding to each other's respective epitopes.

Applications Reported

For research use only, not for diagnostic or therapeutic use. This OKT4 (OKT-4) antibody has been reported for use in flow cytometric analysis.

Applications Tested

This OKT4 antibody has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells using the eFluor^TM NC Flow Cytometry Staining Buffer (cat. 00-3222). This should be used at 5 ul/test (one million cells in a 100 ul total staining volume). The isotype control eFluor^TM 605^NC mouse IgG2b (cat. 93-4732) should be used at 5 ul/test.

Laser/Filter Recommendation: When using eFluor^TM 605^NC, we recommend excitation with the 405nm violet laser with an appropriate filter set, such as the 595LP dichroic mirror with the 605/40 bandpass filter. An acceptable alternative is the 610/20 bandpass filter. Please contact eBioscience Technical Support for more information.

Buffer Recommendation: Comparison of eFluor^TM Nanocrystal conjugated antibody staining in different buffers has demonstrated that optimal performance is seen with the eFluor^TM NC Flow Cytometry Staining Buffer (cat. 00-3222). For a comparison of staining with different buffers, click here.

Whole Blood Recommendation: If staining whole blood samples, collection into heparin or sodium citrate-containing tubes is recommended. If EDTA is being used as an anti-coagulant, lysis of RBCs with eBioscience 1X RBC Lysis Buffer (cat. 00-4333) before staining is required.

Click here to view our list of eFluor^TM Nanocrystal Frequently Asked Questions.

References

Reinherz EL, Kung PC, Goldstein G, Schlossman SF. 1979. Separation of functional subsets of human T cells by a monoclonal antibody. Proc Natl Acad Sci. 76(8): 4061-5.

Bour S, Boulerice F, Wainberg MA. Inhibition of gp160 and CD4 maturation in U937 cells after both defective and productive infections by human immunodeficiency virus type 1. J Virol. 1991 Dec;65(12):6387-96. (OKT4, IP, PubMed)

Related Products

Cat. 00-3222 eFluor™ NC Flow Cytometry Staining Buffer
Cat. 93-4732 eFluor™ 605NC Mouse IgG2b Isotype Control