Human PBMCs were stained with 5 uL  (solid line) or 0.125 ug APC Mouse IgG1 isotype control (dashed line). Flow Cytometry Data from 10,000 events.
Human PBMCs were stained with 5 uL  (solid line) or 0.125 ug APC Mouse IgG1 isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  .Human PBMCs were stained with 5 uL  (solid line) or 0.06 ug PE Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  (solid line) or 0.25 ug Qfluor™ 710 Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  (solid line) or 0.25 ug V450 Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  (solid line) or 0.125 ug APC Mouse IgG1 isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  .Human PBMCs were stained with 5 uL  (solid line) or 0.06 ug PE Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  (solid line) or 0.25 ug Qfluor™ 710 Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.Human PBMCs were stained with 5 uL  (solid line) or 0.25 ug V450 Mouse IgG2b isotype control (dashed line). Flow Cytometry Data from 10,000 events.

Anti-CD4 Antibody [OKT4]

$ 49.00$ 519.00
Please Select A Product To View The SKU.

SKU: QAB11
Species: Human
Tested Applications: Flow Cytometry
Available Conjugates: FITC ;Unconjugated ;APC ;PerCP-Cy5.5 ;PE ;Qfluor 710 ;V450
Isotype: Mouse IgG2b kappa
Mass Spec Validated?: Not MS Validated

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Datasheets and Documentation
Product Datasheet
SKU: QAB11-F-25Tests
CD4 General Information
Alternate Names
CD4, Leu-3, CD4mut
Curated Database and Bioinformatic Data
Gene SymbolCD4
Entrez Gene ID920
Ensemble Gene IDENSG00000010610
RefSeq Protein Accession(s)NP_000607, NP_001181946, NP_001181944, XP_016875717, NP_001181943, NP_001181945
RefSeq mRNA Accession(s)NM_001195017, XM_017020228 NM_001195015, NR_036545, NM_001195016, NM_000616, NM_001195014
RefSeq Genomic Accession(s)NC_018923, NG_027688, NC_000012,
UniProt ID(s)B0AZV7, P01730, B4DT49
UniGene ID(s)B0AZV7, P01730, B4DT49
HGNC ID(s)1678
Cosmic ID(s)CD4
KEGG Gene ID(s)hsa:920
PharmGKB ID(s)PA26220
General Description of CD4.
The OKT4 antibody reacts with human CD4, a 59 kDa protein which acts as a co-receptor for the T cell receptor (TCR) in its interaction with MHC Class II molecules on antigen-presenting cells. The extracellular domain of CD4 binds to the beta-2 domain of MHC Class II, while its cytoplasmic tail provides a binding site for the tyrosine kinase lck, facilitating the signaling cascade that initiates T cell activation. CD4, and co-receptors CCR5 and CXCR4, may also be utilized by HIV-1 to enter T cells. Human CD4 is typically expressed on thymocytes, some mature T cell populations such as Th17 and T regulatory (Treg) cells, as well as on dendritic cells.The OKT4 antibody is widely used as a phenotypic marker for CD4 expression. It is cross-reactive with CD4 in several non-human species, including Chimpanzee, Cynomolgus and Rhesus. This antibody recognizes a different epitope, and thus does not block binding of, the alternative Human Anti-CD4 antibody clone RPA-T4 (Reinherz EL, et al. 1979. Proc. Natl. Acad. Sci. 76:4061-4065)

Human Anti-CD4 Antibody Product Attributes

Species: Human
Tested Applications: Flow Cytometry.
Application Notes: 5 ul per test where one test represents staining of a cell sample in a final volume of approximately 100 uL. The number of cells within a sample must be experimentally determined, but ranges between 1x105 to 1x108 cells.
Clonality: Monoclonal Antibody
Anti-CD4 Antibody Clone: OKT4
Clone OKT4 Host and Isotype: Mouse IgG2b kappa
Buffer and Stabilizer: 10 mM NaH2PO4, 150 mM NaCl, 0.09% NaN3, 0.1% gelatin, pH7.2
Antibody Concentration: 5 uL /test
Storage Conditions: 2-8C protected from light. Stable for 12 Months. Do Not Freeze.

CD4 Previously Observed Antibody Staining Patterns

Observed Subcellular, Organelle Specific Staining Data:

Staining with anti-CD4 antibody reveals CD4 expression is expected to be primarily localized to the plasma membrane.

Observed Antibody Staining Data By Tissue Type:

Variations in CD4 antibody staining intensity in immunohistochemistry on tissue sections are present across different anatomical locations. Low, but measureable presence of CD4 could be seen in cells in the white pulp in spleen and germinal center cells in the tonsil. We were unable to detect CD4 in other tissues. Disease states, inflammation, and other physiological changes can have a substantial impact on antibody staining patterns. These measurements were all taken in tissues deemed normal or from patients without known disease.

Selected References

Chen CY, Huang D, Yao S, Halliday L, Zeng G, Wang RC and Chen ZW. 2012. J. Immunol. 188:4278-4288. (in vivo depletion - macaque)Bagnara D, Kaufman MS, Calissano C, et al. 2011. Blood. 117: 5463-5472. (in vivo depletion)Ciczora Y, Callens N, Seron K, Rouille Y, and Dubuisson J. 2010. J. Gen. Virol. 91:404-414. (Immunofluorescence microscopy; Western Blot)Nguyen V, Cao L, Lin JT, Hung N, Ritz A, Yu K, Jianu R, Ulin SP, Raphael BJ, Laidlaw DH, Brossay L, and Salomon AR. 2009. Mol. Cell. Proteomics. 8: 2418-2431. (in vitro activation)daSilva LLP, Sougrat R, Burgos PV, Janvier K, Mattera R, and Bonifacino JS. 2009. J. Virol. 83: 6578-6590 (Immunoprecipitation)Balla-Jhagjhoorsingh S, Koopman G, Mooij P, Haaksma TGM, Teeuwsen VJP, Bontrop RE, and Heeney JL. 1999. J. Immunol. 162: 2308-2314. (Immunocytochemistry /Immunofluorescence microscopy - Chimpanzee)Bour S, Boulerice F, and Wainberg MA. 1991. J. Virol. 65(12): 6387-6396. (Immunoprecipitation)Watanabe M, Ringler DJ, Fultz PN, MacKey JJ, Boyson JE, Levine CG, and Letvin NL. 1991. J. Virol. 65: 3344-3348. (Flow cytometry - Chimpanzee)

Limitations and Warranty

enQuire Bio's Human Anti-CD4 Monoclonal is available for Research Use Only. This antibody is guaranteed to work for a period of two years when properly stored.

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