Anti-CD4 antibody produced in rabbit

enhanced validation

Ab1, Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-T-cell surface glycoprotein CD4 precursor antibody produced in rabbit, Anti-T-cell surface antigen T4/Leu-3 antibody produced in rabbit
MDL number:
Human Protein Atlas Number:

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity


enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation


immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence




Featured Industry

Research Pathology

UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... CD4(920)

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General description

CD4, a glycoprotein, is predominantly expressed on the cell membrane of mature, thymus-derived (T) lymphocyte and also to some extent in the monocyte/macrophage lineage. It has a transmembrane domain, cytoplasmic region and an extracellular region of four tandem domain similar to members of Ig (immunoglobin) superfamily.


T-cell surface glycoprotein CD4 precursor recombinant protein epitope signature tag (PrEST)

Biochem/physiol Actions

CD4 (cluster of differentiation 4) interacts with the CD4+ T cells with antigen-presenting cells or with target cells by binding to the major histocompatibility complex (MHC) class II molecules. Interaction with MHC-II molecules increases the cytokine expression and the differentiation of human monocytes into functional mature macrophages. Further, it effects human immunodeficiency virus (HIV) binding and subsequent infection. Thus, it proves an important role in HIV as the primary receptor.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST86770.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
S Chinnapaiyan et al.
Scientific reports, 8(1), 7984-7984 (2018-05-24)
Recurrent lung infections are a common cause of morbidity and mortality in people living with HIV and this is exacerbated in smokers even when administered combination antiretroviral therapy (cART). The incidence of pneumonia is increased with smoking and treatment interruption...
A Feedforward Circuit Regulates Action Selection of Pre-mating Courtship Behavior in Female Drosophila.
Ishimoto, et al.
Current Biology, 30, 396-407 (2020)
Daichi Yamada et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 38(18), 4329-4347 (2018-04-25)
Many animals use acoustic signals to attract a potential mating partner. In fruit flies (Drosophila melanogaster), the courtship pulse song has a species-specific interpulse interval (IPI) that activates mating. Although a series of auditory neurons in the fly brain exhibit...
Christopher Schnaitmann et al.
Cell, 172(1-2), 318-330 (2018-01-13)
Color vision extracts spectral information by comparing signals from photoreceptors with different visual pigments. Such comparisons are encoded by color-opponent neurons that are excited at one wavelength and inhibited at another. Here, we examine the circuit implementation of color-opponent processing...
Marcos Vinicius Gondim et al.
Journal of virology, 89(24), 12518-12524 (2015-10-02)
HIV-1 Nef-mediated CD4 downmodulation involves various host factors. We investigated the importance of AP-1, AP-2, AP-3, V1H-ATPase, β-COP, and ACOT8 for CD4 downmodulation in HIV-1-infected short hairpin RNA (shRNA)-expressing CD4(+) T cells and characterized direct interaction with Nef by Förster...

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