Recombinant人IL1 beta protein (ab9617)



  • 性质Recombinant
  • 来源Escherichia coli
  • 氨基酸序列
    • AccessionP01584
    • 种属Human
    • 分子量17 kDa
    • 氨基酸1 to 153


Our Abpromise guarantee covers the use of ab9617 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • 生物活性

    Determined by its ability to stimulate the proliferation of mouse D10S cells. The expected ED50 is ≤ 0.001 ng/mL, corresponding to a specific activity of ≥ 1 x 109 units/mg.

  • 应用

    Functional Studies


  • 内毒素水平< 0.100 Eu/µg
  • 纯度> 98 % SDS-PAGE.
    Sterile filtered. Greater than 98% pure by SDS-PAGE and HPLC analyses.
  • 形式Lyophilised
  • 补充说明

    Licensed under European Patent 165,654.

  • Concentration information loading...


  • 稳定性和存储

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.

    pH: 7.50
    Constituents: 0.3% Sodium chloride, 0.16% Sodium phosphate

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • 复溶Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8oC for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20oC to -80oC.


  • 别名
    • Catabolin
    • H1
    • IL 1
    • IL 1 beta
    • IL-1 beta
    • IL1 BETA
    • IL1B
    • IL1B_HUMAN
    • IL1F2
    • Interleukin 1 beta
    • Interleukin-1 beta
    • OAF
    • OTTHUMP00000162031
    • Preinterleukin 1 beta
    • Pro interleukin 1 beta
    see all
  • 功能Potent proinflammatory cytokine. Initially discovered as the major endogenous pyrogen, induces prostaglandin synthesis, neutrophil influx and activation, T-cell activation and cytokine production, B-cell activation and antibody production, and fibroblast proliferation and collagen production. Promotes Th17 differentiation of T-cells.
  • 组织特异性Expressed in activated monocytes/macrophages (at protein level).
  • 序列相似性Belongs to the IL-1 family.
  • 翻译后修饰Activation of the IL1B precursor involves a CASP1-catalyzed proteolytic cleavage. Processing and secretion are temporarily associated.
  • 细胞定位Cytoplasm, cytosol. Lysosome. Secreted, exosome. Cytoplasmic vesicle, autophagosome. Secreted. The precursor is cytosolic. In response to inflammasome-activating signals, such as ATP for NLRP3 inflammasome or bacterial flagellin for NLRC4 inflammasome, cleaved and secreted. IL1B lacks any known signal sequence and the pathway(s) of its secretion is(are) not yet fully understood (PubMed:24201029). On the basis of experimental results, several unconventional secretion mechanisms have been proposed. 1. Secretion via secretory lysosomes: a fraction of CASP1 and IL1B precursor may be incorporated, by a yet undefined mechanism, into secretory lysosomes that undergo Ca(2+)-dependent exocytosis with release of mature IL1B (PubMed:15192144). 2. Secretory autophagy: IL1B-containing autophagosomes may fuse with endosomes or multivesicular bodies (MVBs) and then merge with the plasma membrane releasing soluble IL1B or IL1B-containing exosomes (PubMed:24201029). However, autophagy impacts IL1B production at several levels and its role in secretion is still controversial. 3. Secretion via exosomes: ATP-activation of P2RX7 leads to the formation of MVBs containing exosomes with entrapped IL1B, CASP1 and other inflammasome components. These MVBs undergo exocytosis with the release of exosomes. The release of soluble IL1B occurs after the lysis of exosome membranes (By similarity). 4. Secretion by microvesicle shedding: activation of the ATP receptor P2RX7 may induce an immediate shedding of membrane-derived microvesicles containing IL1B and possibly inflammasome components. The cytokine is then released in the extracellular compartment after microvesicle lysis (PubMed:11728343). 5. Release by translocation through permeabilized plasma membrane. This may occur in cells undergoing pyroptosis due to sustained activation of the inflammasome (By similarity). These mechanisms may not be not mutually exclusive.
  • Information by UniProt

Recombinant human IL1 beta protein (ab9617)参考文献

This product has been referenced in:
  • Buler M  et al. Energy-sensing Factors Coactivator Peroxisome Proliferator-activated Receptor ? Coactivator 1-a (PGC-1a) and AMP-activated Protein Kinase Control Expression of Inflammatory Mediators in Liver: INDUCTION OF INTERLEUKIN 1 RECEPTOR ANTAGONIST. J Biol Chem 287:1847-60 (2012). Read more (PubMed: 22117073) »

See 1 Publication for this product

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