Thermo Fisher Scientific CD4 Recombinant Rat Monoclonal Antibody (4SM95), Alexa Fluor Plus 488

Applications

Tested Dilution

Publications

Immunohistochemistry (Paraffin) (IHC (P))

1:100

-

Immunocytochemistry (ICC/IF)

1:800

-

Flow Cytometry (Flow)

1 µg/test

-

Product Specifications

Species Reactivity

Human, Mouse

Host/Isotype

Rat / IgG1, kappa

Expression System

Expi293

Class

Recombinant Monoclonal

Type

Antibody

Clone

4SM95

Conjugate

Alexa Fluor™ Plus 488 Alexa Fluor™ Plus 488 Alexa Fluor™ Plus 488

View additional formats

• Unconjugated
• Request custom conjugation

Excitation/Emission Max

493/518 nm View spectra

Form

Liquid

Concentration

1.0 mg/mL

Purification

Affinity chromatography

Storage buffer

proprietary buffer, pH 6.8

Contains

0.008% Bromonitrodioxane, 0.008% Methylisothiazolone

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Wet ice

Product Specific Information

Alexa Fluor™ Plus recombinant rat antibodies are conjugated using new, proprietary dye chemistry so you can generate stunning data. Alexa Fluor™ Plus antibodies represent an advancement in fluorescent conjugate technology. Alexa Fluor™ Plus antibodies provide brighter signal compared to leading Alexa Fluor™ antibodies, providing you with better signal-to-noise for your critical experiments. These antibodies show better specificity and lot-to-lot consistency as these are recombinant antibodies, generated by cloning specific genes for the desired antibodies into an expression vector and expressed in vitro.

Using conjugate solutions: Centrifuge the protein conjugate solution briefly in a microcentrifuge before use; add only the supernatant to the experiment. This step will help eliminate any protein aggregates that may have formed during storage, thereby reducing nonspecific background staining.

Applications Tested: This 4SM95 antibody has been tested by immunohistochemistry of colon and immunocytochemistry of CD4 transfected HEK-293E cells and flow cytometric analysis of human PBMC. This may be used for immunohistochemistry at 10 µg/ml and for immunocytochemistry at 1.25 µg/ml and for flow cytometry at less than or equal to 1 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.

Excitation: 494 nm; Emission: 519 nm; Laser: Blue Laser

Filtration: 0.2 µm post-manufacturing filtered.

Target Information

The CD4 antigen is involved in the recognition of MHC class II molecules and is a co-receptor for HIV. CD4 is primarily expressed in a subset of T-lymphocytes, also referred to as T helper cells, but may also be expressed by other cells in the immune system, such as monocytes, macrophages, and dendritic cells. At the tissue level, CD4 expression may be detected in thymus, lymph nodes, tonsils, and spleen, and also in specific regions of the brain, gut, and other non-lymphoid tissues. CD4 functions to initiate or augment the early phase of T-cell activation through its association with the T-cell receptor complex and protein tyrosine kinase, Lck. It may also function as an important mediator of direct neuronal damage in infectious and immune-mediated diseases of the central nervous system. Multiple alternatively spliced transcripts have been identified in this gene [RefSeq, July 2017].

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.