Recombinant Rat IL-1ra/IL-1F3/IL1RN Protein

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SDS-Page: Rat IL-1ra/IL-1F3/IL1RN Protein [NBP2-35225]

Product Details

Summary
Reactivity RtSpecies Glossary
Applications Func, PAGE
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Rat IL-1ra/IL-1F3/IL1RN Protein Summary

Description
A single, non-glycosylated biologically active polypeptide chain corresponding to 152 residues of IL1RN.

Source: E. coli

Amino Acid Sequence: HPAGKRPCKM QAFRIWDTNQ KTFYLRNNQL IAGYLQGPNT KLEEKIDMVP IDFRNVFLGI HGGKLCLSCV KSGDDTKLQL EEVNITDLNK NKEEDKRFTF IRSETGPTTS FESLACPGWF LCTTLEADHP VSLTNTPKEP CTVTKFYFQE DQ

Preparation
Method
Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
IL1RN/IL1RA Protein is fully biologically active when compared to standard. The ED50 as determined by inhibiting IL-1alpha- dependent proliferation of murine D10S cells is less than 150 ng/ml, corresponding to a specific activity of > 6.7 x 10^3 IU/mg in the presence of 50 pg/ml rRtIL-1alpha
Source
E. coli
Protein/Peptide Type
Biologically Active Protein
Gene
IL1RN
Purity
>96%, by HPLC
Endotoxin Note
Less than 1 EU/ug of endotoxin as determined by LAL method.

Applications/Dilutions

Theoretical MW
17.4 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Concentration
LYOPH
Purity
>96%, by HPLC
Reconstitution Instructions
Reconstitute with sterilized distilled water or 0.1% BSA aqueous buffer to a final concentration of 0.1 - 1.0 mg/ml.

Notes

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Recombinant Rat IL-1ra/IL-1F3/IL1RN Protein

  • DIRA
  • ICIL-1RA
  • IL1F3
  • IL-1F3
  • IL1ra
  • IL-1ra
  • IL-1ra3
  • IL1RN
  • IL-1RN
  • interleukin 1 receptor antagonist
  • IRAP
  • MVCD4

Background

IL-1RA was initially called the IL-1 inhibitor which is encoded by the IL1RN gene and it is a member of the interleukin 1 cytokine family. IL-1RA is secreted by various types of cells including immune cells, epithelial cells, and adipocytes. IL-RA has functions of inhibiting the activity of interleukin-1 by binding to receptor IL1R1 and preventing its association with the coreceptor IL1RAP for signaling. IL-1RA is also used in the treatment of rheumatoid arthritis, an autoimmune disease in which IL- 1 plays a key role. The rat IL-1RA is a single non-glycosylated polypeptide chain containing 152 amino acids and it has been shown to block the inflammatory responses induced by IL-1 both in vitro and in vivo. Rat IL-1RA shares 89 % and 73 % a.a. sequence homology with murine and human IL-1RA.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 2 years from date of receipt.

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Bioinformatics

Gene Symbol IL1RN
Entrez