Description
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 porcine. 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. The porcine IL-1 beta cDNA encodes a 267 aa precursor. A 114 aa propeptide is cleaved intracellularly by the cysteine protease IL-1 beta -converting enzyme (Caspase-1/ICE) to generate the active cytokine. The 17 kDa mature porcine IL-1 beta shares 63%-70% aa sequence identity with canine, cotton rat, equine, feline, human, mouse, rat, and rhesus IL-1 beta.
Product Properties
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Synonyms |
IL-1 beta |
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Accession |
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GeneID |
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Source |
E.coli-derived Porcine IL-1β, Ala115-Pro267. |
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Molecular Weight |
Approximately 17.6 kDa. |
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AA Sequence |
ANVQSMECKL QDKDHKSLVL AGPHMLKALH LLTGDLKREV VFCMSFVQGD DSNNKIPVTL GIKGKNLYLS CVMKDNTPTL QLEDIDPKRY PKRDMEKRFV FYKTEIKNRV EFESALYPNW YISTSQAEQK PVFLGNSKGR QDITDFTMEV LSP |
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Tag |
None |
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Physical Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Purity |
> 95% by SDS-PAGE and HPLC analyses. |
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Biological Activity |
The ED50 as determined by a cell proliferation assay using murine D10S cells is less than 5.0 ng/mL, corresponding to a specific activity of > 2.0 × 105 IU/mg. Fully biologically active when compared to standard. |
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Endotoxin |
< 1.0 EU per 1μg of the protein by the LAL method. |
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Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4, 3 % trehalose. |
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Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions. |
Shipping and Storage
The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first.
Cautions
1. Avoid repeated freeze-thaw cycles.
2. For your safety and health, please wear lab coats and disposable gloves for operation.
3. For research use only!
Paiement et sécurité
Vos informations de paiement sont traitées en toute sécurité. Nous ne stockons pas les détails de la carte de crédit ni accès aux informations de votre carte de crédit.
Enquête
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FAQ
Le produit est destiné à des fins de recherche uniquement et n'est pas destiné à un usage thérapeutique ou diagnostique chez l'homme ou l'animal. Les produits et le contenu sont protégés par des brevets, des marques déposées et des droits d'auteur appartenant à Yeasen Biotechnology. Les symboles de marque indiquent le pays d'origine, pas nécessairement l'enregistrement dans toutes les régions.
Certaines applications peuvent nécessiter des droits de propriété intellectuelle tiers supplémentaires.
Yeasen se consacre à la science éthique, estimant que nos recherches doivent répondre à des questions cruciales tout en garantissant la sécurité et les normes éthiques.