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Recombinant Cotton Rat IL-1 beta/IL-1F2 Protein

Catalog #: 1009-CL
2 Citations Datasheet / COA / SDS

Carrier Free

Catalog # Availability Size / Price Qty
1009-CL-010/CF

With Carrier

Catalog # Availability Size / Price Qty
1009-CL-010
R&D Systems Recombinant Proteins and Enzymes
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Product Details
Citations (2)
FAQs
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Summary Product Datasheets Carrier Free Data Images Reconstitution Calculator Background Related Research Areas

Recombinant Cotton Rat IL-1 beta/IL-1F2 Protein Summary

Product Specifications

Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Endotoxin Level
<0.10 EU per 1 μg of the protein by the LAL method.
Activity
Measured in a cell proliferation assay using D10.G4.1 mouse helper T cells. Symons, J.A. et al. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 272. The ED50 for this effect is 15-90 pg/mL.
Source
E. coli-derived cotton rat IL-1 beta/IL-1F2 protein
Val116-Ser267, with an N-terminal Met
Accession #
AAL18817
N-terminal Sequence
Analysis
Met
Predicted Molecular Mass
17.3 kDa

Product Datasheets

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1009-CL (with carrier)

Product Datasheet
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SDS

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1009-CL/CF (carrier free)

Product Datasheet
COA
SDS

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

1009-CL

Formulation Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

1009-CL/CF

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution Reconstitute at 100 μg/mL in sterile PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: IL-1 beta/IL-1F2

IL-1 is a name that designates two pleiotropic cytokines, IL-1 alpha (IL-1F1) and IL-1 beta (IL-1F2), which are the products of distinct genes. IL-1 alpha and IL-1 beta are structurally related polypeptides that share approximately 27% amino acid (aa) identity in cotton rat. Both proteins are produced by a wide variety of cells in response to inflammatory agents, infections, or microbial endotoxins. While IL-1 alpha and IL-1 beta are regulated independently, they bind to the same receptor and exert identical biological effects. IL-1 RI binds directly to IL-1 alpha or IL-1 beta and then associates with IL-1 R accessory protein (IL-1 R3/IL-1 R AcP) to form a high-affinity receptor complex that is competent for signal transduction. IL-1 RII has high affinity for IL-1 beta but functions as a decoy receptor and negative regulator of IL-1 beta activity. IL-1ra functions as a competitive antagonist by preventing IL-1 alpha and IL-1 beta from interacting with IL‑1 RI (1 - 4). The cotton rat IL-1 beta cDNA encodes a 267 aa precursor. A 115 aa propeptide is cleaved intracellularly by the cysteine protease IL-1 beta -converting enzyme (Caspase-1/ICE) to generate the active cytokine (5, 6). The 17 kDa mature cotton rat IL-1 beta shares 90% aa sequence identity with mouse and rat and 65% - 78% with canine, equine, feline, human, porcine, and rhesus IL-1 beta.

References
  1. Allan, S.M. et al. (2005) Nat. Rev. Immunol. 5:629.
  2. Boraschi, D. and A. Tagliabue (2006) Vitam. Horm. 74:229.
  3. Kornman, K.S. (2006) Am. J. Clin. Nutr. 83:475S.
  4. Isoda, K. and F. Ohsuzu (2006) J. Atheroscler. Thromb. 13:21.
  5. Accession #AAL18817.
  6. Martinon, F. and J. Tschopp (2007) Cell Death Differ. 14:10.
Long Name
Interleukin 1 beta
Entrez Gene IDs
3553 (Human); 16176 (Mouse); 24494 (Rat); 397122 (Porcine); 403974 (Canine); 100034237 (Equine); 100135556 (Guinea Pig)
Alternate Names
catabolin; IL1 beta; IL-1 beta; IL-1; IL1B; IL-1b; IL1-BETA; IL-1F2; IL1F2IL-1 beta; interleukin 1, beta; interleukin-1 beta; preinterleukin 1 beta; pro-interleukin-1-beta

Citations for Recombinant Cotton Rat IL-1 beta/IL-1F2 Protein

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Involvement of Akt/CREB signaling pathways in the protective effect of EPA against interleukin-1?-induced cytotoxicity and BDNF down-regulation in cultured rat hippocampal neurons
    Authors: Y Dong, K Pu, W Duan, H Chen, L Chen, Y Wang
    BMC Neurosci, 2018-09-06;19(1):52.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay
  2. Curcumin inhibits glial scar formation by suppressing astrocyte-induced inflammation and fibrosis in vitro and in vivo
    Authors: Jiangkai Lin
    Brain Res., 2016-11-16;0(0):.
    Species: Rat
    Sample Types: Whole Cells
    Applications: Bioassay

FAQs

  1. Does IL-1 beta induce NO in smooth muscle?

    • Yes it does, based on the literature.

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