TCR V beta 2 Monoclonal / FITC / REA654

Product Details

Description	Clone REA654 recognizes the human variable beta2 subunit of the alpha/beta T cell receptor (TCR Vbeta2). The TCR is a heterodimeric glycoprotein associated with the CD3 antigen. The alpha and beta TCR chains are composed of constant and variable regions, each encoded by distinct gene segments. TCR Vbeta2 is a variant of the TCR beta chain. alpha/beta T cells express a diverse alpha/beta TCR repertoire that specifically co-recognizes self or foreign antigen bound to antigen-presenting molecules, which thereby leads to T cell–mediated immunity. For example, the TCR can directly bind to peptide fragments, riboflavin precursors, and lipid antigens that are presented by major histocompatibility complex (MHC) molecules, MR1 and CD1, respectively. In each case, the antigen sits within the antigen-binding cleft, whereupon the TCR recognizes a composite surface formed by the antigen-presenting molecule and surface-exposed regions of the antigen itself. This co-recognition paradigm is a central tenet of alpha/beta T cell–mediated immunity and underpins MHC restriction. \| Additional information: Clone REA654 displays negligible binding to Fc receptors.
Conjugate	FITC
Clone	REA654
Target Species	Human
Applications	FC, MICS (MACSima Imaging Cyclic Staining), IF, IHC
Supplier	Miltenyi Biotec
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About FITC
Fluorescein isothiocyanate (FITC) has an excitation peak at 495 nm and an emission peak at 519 nm. The name FITC is a misnomer in that the isothiocyanate is a reactive form of this dye. Once FITC is conjugated to an antibody, it is simply Fluorescein conjugated. FITC is one of the most widely used dyes for fluorescent applications, therefore most instruments come standard with a 488 nm laser and FITC filter set up. FITC is commonly conjugated to secondary antibodies and used in applications such as flow cytometry, immunocytochemistry, and immunohistochemistry. FITC is relatively dim, sensitive to photobleaching and it is susceptible to changes is pH. There are better performing alternatives to FITC, like Vio®Bright 515, Alexa Fluor™ 488, iFluor® 488, CF®488A and DY-488. FITC is a long-time generic dye with no sole manufacturer or trademark.

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