Human IL-1B / IL-1 Beta

Rabbit

Human, Dog, Primate (tested or 100% immunogen sequence identity)

IgG Polyclonal

Unconjugated

DEAE fractionation

Unmodified

This antibody was prepared by repeated immunizations with recombinant human IL-1ß produced in E.coli.  The MW of the recombinant 153 aa IL-1ß was 17 kDa with the N-terminal amino acid at position alanine 117.  This cleavage site is generated by the IL-1ß converting enzyme (ICE, capase-1).

N-Terminus

This antibody is primarily directed against mature, 17,000 MW human IL-1ß and is useful in determining its presence in various assays. In general, this antibody also detects primate IL-1ß in the same formats using similar dilutions. The antiserum does not recognize human IL-1a. In ELISA formats and other immunoreactive assays, this antibody will recognize 10% of the non-denatured (native) precursor 31,000 MW IL-1ß containing samples but will primarily detect all of the 17,000 MW mature molecule. However, in immunoblot analysis of natural cell products or human body fluids, the usual procedure of hearing the sample in SDS with or without reducing agents will facilitate denaturing of the 31,000 MW IL- 1ß precursor molecule. Denatured 31,000 precursor IL-1ß will be recognized by this antibody but often migrates as a 35,000 MW band. This is due to the unfolding of the denatured precursor IL-1ß exposing epitopes not exposed in the natural state. In immunoblots, depending on the number of cells, the antibody detects the 17,000 MW band in supernatants as well as a 35,000 MW band representing the 31,000 MW IL-1ß precursor in lysates.

• IHC
• IHC - Paraffin (1:100 - 1:200)
• IHC - Frozen (1:100 - 1:200)
• Immunofluorescence
• Western blot (1:1000)
• Immunoprecipitation (1:400 - 1:800)
• Flow Cytometry
• ELISA (1:500 - 1:2000)
• Neutralization (1:100)
• Radioimmunoassay (1:5000 - 1:10000)

This IgG fraction antibody of anti- Human IL-1beta has been tested for use in neutralizations, ELISA, radioimmunoassays, immunohistochemistry, immunoblotting and immunoprecipitation. It recognizes the 17000 MW mature IL-10. For immunoblots, typically, IL-1beta is detected from supernatants or lysates of 2 x 106 endotoxin-stimulated human peripheral blood mononuclear cells (PBMC). PBMC are stimulated for 24 hours with 1 % (v/v) human serum plus 10 ng/mL E. coli LPS. For immunoprecipitation a dilution of 1:400 to 1:800 is suggested. Pre-clearing the preparation with a non-specific rabbit IgG (011-001-297) to reduce background. For immunohistochemistry a dilution of 1:100 to 1:200 is suggested. Either paraffin fixation or cryofixation can be used for sample preparation to stain intracellular IL- 1beta. For ELISA also use HRP Conjugated Anti-Rabbit IgG [HalphaL] (Goat) (611-1302) for detection.

0.02 M Potassium Phosphate, pH 7.2, 0.15 M NaCl

Aliquot and store at -20°C. Avoid freeze-thaw cycles.

For research use only. Intended for use by laboratory professionals.

This antibody carries the LSBio 100% Guarantee.

Uniprot: P01584 NCBI: NM_000576 NP_000567.1