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Biotinylated Human IL-1 alpha / IL-1F1, epitope tag free, ultra sensitivity (primary amine labeling)  pdf  pdf  pdf

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ILA-H8213-200ug (100ug x 2)
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MABSol® Biotinylated Human IL-1 alpha / IL-1F1 (ILA-H8213) is expressed from human HEK293 cells. It contains AA Ser 113 - Ala 271 (Accession # NP_000566). It is the biotinylated form of ActiveMax® Human IL-1 alpha (Cat. No. ILA-H4213).

Predicted N-terminus: Ser 113

Molecular Characterization

IL-1 alpha(Ser 113 - Ala 271)NP_000566

This protein carries no "tag".

The protein has a calculated MW of 18 kDa. The protein migrates as 19-22 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.


The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.

Biotin:Protein Ratio

The biotin to protein ratio is 3-4.5 as determined by the HABA assay.


Less than 1.0 EU per μg by the LAL method.


>97% as determined by SDS-PAGE.


Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.


Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.


For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

No activity loss is observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.


Biotinylated Human IL-1 alpha (Cat. No. ILA-H8213) SDS-PAGE gel

Biotinylated Human IL-1 alpha on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 97%.


Biotinylated Human IL-1 alpha (Cat. No. ILA-H8213) ELISA bioactivity

Immobilized Human IL-1 RII, Fc Tag (Cat. No. IL2-H4256) at 10 μg/mL (100 µL/well),can bind Biotinylated Human IL-1 alpha (Cat. No. ILA-H8213) with a linear range of 0.05-1 μg/mL (QC tested).

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Interleukin-1 alpha (IL1a) is also known as IL-1A, IL1, IL1-ALPHA,IL1F1,and is a cytokine of the interleukin-1 family. IL1a possesses a wide spectrum of metabolic, physiological, haematopoietic activities, and plays one of the central roles in the regulation of the immune responses. It binds to the interleukin-1 receptor. IL-1α is constitutively produced by epithelial cells. It is found in substantial amounts in normal human epidermis and is distributed in a 1:1 ratio between living epidermal cells and stratum corneum.The constitutive production of large amounts of IL-1α precursor by healthy epidermal keratinocytes interfere with the important role of IL-1α in immune responses, assuming skin as a barrier, which prevents the entry of pathogenic microorganisms into the body. In vitro, IL-1α possesses biological effect on cells in the picomolar to femtomolar range. In vivo, Shortly after an onset of an infection into organism, IL-1α activates a set of immune system response processes.


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