Thermo Fisher Scientific CD2 Monoclonal Antibody (S5.5), FITC

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

Assay-Dependent

View 1 publication 1 publication

Product Specifications

Species Reactivity

Human

Published species

Human

Host/Isotype

Mouse / IgG2a

Class

Monoclonal

Type

Antibody

Clone

S5.5

Immunogen

CD2 antigen

Conjugate

FITC FITC FITC

View additional formats

• APC
• PE
• PerCP
• Qdot 605
• Request custom conjugation

Excitation/Emission Max

498/517 nm View spectra

Form

Liquid

Purification

purified

Storage buffer

PBS with BSA

Contains

0.1% sodium azide

Storage conditions

4° C, store in dark

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_2536455

Product Specific Information

Commonly used, FITC conjugates provide relatively high absorptivity, excellent fluorescence quantum yield, and good water solubility.

Target Information

CD2 (LFA-2) is a monomeric surface antigen (MW range 45-58 kDa) of the human T-lymphocyte lineage that is expressed on all peripheral blood T cells. CD2 is one of the earliest T-cell markers, being present on more than 95% of thymocytes and it is also found on some natural killer cells, but not on B lymphocytes. Monoclonal antibodies directed against CD2 inhibit the formation of rosettes with sheep erythrocytes, indicating that CD2 is the erythrocyte receptor or is closely associated with it. The interaction between CD2 and CD58 stabilizes adhesion between T cells and antigen presenting or target cells. Relatively low affinity of CD2 to CD58 (as measured in solution) is compensated within the two-dimensional cell-cell interface to provide tight adhesion. Moreover, T cell activation induces increased CD2 expression and its lateral mobility, making easier contact between CD2 and CD58. Subsequently, T cell activation causes fixation of CD58-CD2 at sites of cell-cell contact, thereby strengthening intercellular adhesion. CD2 deficiency reduces intestinal inflammation and helps to control infection. Diseases associated with CD2 dysfunction include penis squamous cell carcinoma and immune deficiency due to the absence of the thymus.

Analyte Specific Reagent