Mfg Part Number
Ab02947-3.3

Vector Labs Ab02947-3.3 Anti-IL-2 [UFKA-20], Mouse IgG2b, Fc Silent™, kappa (200 μg)

Quick Overview
The original antibody was generated immunizing Balb/c mice with human IL-2.
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Product Class:Purified
Clone ID:UFKA-20
Heavy Chain Modification:Fc Silent™
Synonyms:IL2; IL-2; TCGF; Interleukin-2; T-cell growth factor; Aldesleukin
Amount:200 μg
Application Codes Clone:ELISA; FC
Shipping Temperature:Wet Ice
Buffer Composition:PBS with 0.02% Proclin 300.
Original Format:IgG1
Storage Temperature:Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Chimeric Use Statement:This chimeric mouse antibody was made using the variable domain sequences of the original Human IgG1 format for improved compatibility with existing reagents assays and techniques.
Specificity Statement:This antibody binds human IL-2. In particular, the antibody binds IL-2 dorsolaterally, with an angle of 55° counterclockwise to the vertical axis, contacting the C- and B-helices of IL-2 and thereby forming a “clamp” around the C-helix. The antibody engages IL-2 residues D84, N88, V91, E61, E68, and K64.
Application Notes:This antibody binds to Interleukin-2, a protein produced by T-cells in response to antigenic or mitogenic stimulation. IL-2/UFKA-20 complex shows an improved selectivity towards regulatory T cells compared to IL-2 alone. IL-2/UFKA-20 can recognize the receptor IL of regulatory T cells on the base of the presence of CD25, therefore called CD25 bias. IL-2/UFKA-20 complex is able to efficiently stimulate CD25+ Treg cells in mice and rhesus macaques in vivo as well as in humans ex vivo.
More Information
Brand Vector Labs
UNSPSC 12161500