Skip to Content
Merck
All Photos(1)

Documents

MABF415

Sigma-Aldrich

Anti-CD4 Antibody (mouse), clone GK1.5

clone GK1.5, 0.5 mg/mL, from rat

Synonym(s):

T-cell surface glycoprotein CD4, T-cell differentiation antigen L3T4, T-cell surface antigen T4/Leu-3, CD4

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rat

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

GK1.5, monoclonal

species reactivity

mouse

concentration

0.5 mg/mL

technique(s)

flow cytometry: suitable
immunohistochemistry: suitable
immunoprecipitation (IP): suitable

isotype

IgG2bκ

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

mouse ... Cd4(12504)

General description

The GK1.5 antibody reacts with mouse CD4, a 55 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 is typically expressed on thymocytes, certain mature T cell populations such as Th17 and T regulatory (Treg) cells, as well as on dendritic cells.The GK1.5 antibody is widely used as a phenotypic marker for CD4 expression. If used together, the GK1.5 antibody and an alternative antibody, Anti-Mouse CD4 clone RM4-5, will “compete” for binding, i.e. RM4-5 is able to block GK1.5 binding to cells. In contrast, the Anti-Mouse CD4 clone RM4-4 does not block binding of the GK1.5 antibody to cells (Arora S et al. 2006. Infect. Immun. 74: 4339-4348). The GK1.5 antibody is also reported to be cross-reactive with Syrian hamster CD4.

Specificity

M

Immunogen

Immunogen information for this antibody is proprietary information.

Application

Research Category
Inflammation & Immunology
This Rat Monoclonal Antibody Anti-CD4 (mouse), clone GK1.5, Cat. No. MABF415 is validated for use in Immunoprecipitation, Immunohistochemistry, Flow Cytometry for the detection of CD4.

Physical form

Format: Purified
Purified Rat Monoclonal Antibody in buffer containing 10 mM NaH2PO4, 150 mM NaCl, 0.1% gelatin, pH 7.2, and up to 0.1% sodium azide.

Storage and Stability

It is recommended to store the product undiluted at 2-8°C and protected from prolonged exposure to light. Do not freeze.

Disclaimer

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.

Not finding the right product?  

Try our Product Selector Tool.

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Jian Zhao et al.
Journal of vascular research, 56(5), 241-254 (2019-09-20)
Atherosclerosis in the carotid arteries is a common cause of ischemic stroke. We examined atherogenesis in the left carotid artery with and without interrupted blood flow of C57BL/6 (B6) and C3H-Apoe-deficient (Apoe-/-) mouse strains. Blood flow was interrupted by ligating
Anissa Viveiros et al.
American journal of physiology. Heart and circulatory physiology, 323(6), H1262-H1269 (2022-11-12)
Myocardial pathologies resulting from SARS-CoV-2 infections are consistently rising with mounting case rates and reinfections; however, the precise global burden is largely unknown and will have an unprecedented impact. Understanding the mechanisms of COVID-19-mediated cardiac injury is essential toward the
Shiki Takamura et al.
Journal of immunology (Baltimore, Md. : 1950), 175(4), 2541-2547 (2005-08-06)
CD4+ T cells play a crucial role in CTL generation in a DNA vaccination strategy. Several studies have demonstrated the requirement of CD4+ T cells for the induction of a sufficient immune response by coadministrating DNAs. In the present study
Martin Stenström et al.
European journal of immunology, 34(1), 56-65 (2004-02-19)
Natural killer T (NKT) lymphocytes rapidly produce several cytokines, including IL-4 and IFN-gamma, upon activation, and act as regulatory cells at an early interphase of innate and adaptive immune responses. They have been implicated as important elements in diverse immune
Chao-Chih Wu et al.
PloS one, 8(7), e69336-e69336 (2013-08-13)
The purpose of this study was to investigate the anti-tumor effect and potential mechanisms of i.p. hyperthermia in combination with α-galactosylceramide (α-GalCer) for the treatment of ovarian cancer. In this study, immuno-competent tumor models were established using murine ovarian cancer

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service