IL1B active protein

Recombinant Mouse IL1B

Cat. Num. AAA4159927

• Gene Names: Il1b; Il-1b; IL-1beta
• Purity: >95% as determined by SDS-PAGE
• Synonyms: IL1B; Recombinant Mouse IL1B; IL-1 beta; IL1b; Recombinant Mouse Interleukin-1 Beta (IL1B); IL1B active protein

• Host: E Coli
• Purity/Purification: >95% as determined by SDS-PAGE
• Form/Format: Lyophilized from a 0.2 um filtered solution in PBS, pH 7.
• Sequence Length: 269

• Bioactivity: The ED(50) was determined by the dose-dependent stimulation of thymidine uptake by murine D10S cells is <= 2.0 pg/mL, corresponding to a specific activity of >= 5.0 x 10^8 units/mg.
• Endotoxin Level: <1.0 EU/ug of recombinant protein as determined by the LAL method.
• Reconstitution: A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.
• Preparation and Storage: The lyophilized protein is stable for at least one year from date of receipt at-70 degree C. Upon reconstitution, this cytokine can be stored in working aliquots at 2-8 degree C for one month, or at-20 degree C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles.

Testing Data

Testing Data

Related Product Information for IL1B active protein

Monocytes are the main source of secreted IL-1. They express predominantly IL1-beta while human keratinocytes express large amounts of IL-1-alpha. Murine macrophages display a transition from IL-1-beta to IL-1-alpha production during maturation of monocytes into inflammatory macrophages. There are two functionally almost equivalent forms of IL-1, IL-1-alpha and IL-1-beta that are encoded by two different genes. IL-1-beta is the predominant form in humans while it is IL-1-alpha in mice. Both forms of IL1 bind to the same receptor and therefore also show similar if not identical biological activities. The IL-1-beta but not the IL-1-alpha precursor must be processed before it can bind to the receptor. Both forms of IL-1 bind to the same receptor and therefore also show similar if not identical biological activities. The receptor isolated from T-cells is expressed predominantly on T-cells and cells of mesenchymal origin. It binds both types of IL-1 with equal affinity. This type is called also Type 1 receptor. It has been designated CD121a. The Type 2 receptor has been designated CD121b. It is isolated from B-cells, granulocytes, and macrophages. It is expressed predominantly on B-cells and cells of the myelomonocytic lineage and is encoded by a separate gene.

NCBI and Uniprot Product Information

• NCBI GI #: 6680415
• NCBI GeneID: 16176
• NCBI Accession #: NP_032387.1
• NCBI GenBank Nucleotide #: NP_032387.1
• UniProt Accession #: P10749
• Molecular Weight: 17.0 kDa
• NCBI Official Full Name: interleukin-1 beta
• NCBI Official Synonym Full Names: interleukin 1 beta
• NCBI Official Symbol: Il1b
• NCBI Official Synonym Symbols: Il-1b; IL-1beta
• NCBI Protein Information: interleukin-1 beta
• UniProt Protein Name: Interleukin-1 beta
• Protein Family: Interleukin
• UniProt Gene Name: Il1b
• UniProt Synonym Gene Names: IL-1 beta
• UniProt Entry Name: IL1B_MOUSE

NCBI Description

The protein encoded by this gene is a member of the interleukin 1 cytokine family. This cytokine is produced by activated macrophages as a proprotein, which is proteolytically processed to its active form by caspase 1. The encoded protein plays a role in thymocyte proliferation and is involved in the inflammatory response. [provided by RefSeq, Aug 2015]

Uniprot Description

IL1B: Produced by activated macrophages, IL-1 stimulates thymocyte proliferation by inducing IL-2 release, B-cell maturation and proliferation, and fibroblast growth factor activity. IL-1 proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin and collagenase from synovial cells. Monomer. Belongs to the IL-1 family.

Protein type: Cytokine

Cellular Component: extracellular space; cell; extracellular region; intracellular; cytosol; vesicle; secretory granule

Molecular Function: protein domain specific binding; interleukin-1 receptor binding; cytokine activity; receptor binding

Biological Process: positive regulation of granulocyte macrophage colony-stimulating factor production; negative regulation of MAP kinase activity; positive regulation of JNK activity; positive regulation of nitric oxide biosynthetic process; negative regulation of glutamate secretion; activation of MAPK activity; positive regulation of apoptosis; positive regulation of interleukin-2 biosynthetic process; positive regulation of transcription, DNA-dependent; germ cell programmed cell death; negative regulation of insulin receptor signaling pathway; positive regulation of glial cell differentiation; response to lipopolysaccharide; positive regulation of NF-kappaB import into nucleus; positive regulation of lipid catabolic process; fever; positive regulation of membrane protein ectodomain proteolysis; response to carbohydrate stimulus; activation of NF-kappaB transcription factor; elevation of cytosolic calcium ion concentration; positive regulation of phagocytosis; positive regulation of T cell proliferation; positive regulation of astrocyte differentiation; neutrophil chemotaxis; positive regulation of heterotypic cell-cell adhesion; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of mitosis; interleukin-1 beta production; positive regulation of interleukin-6 production; social behavior; positive regulation of angiogenesis; negative regulation of neuron differentiation; positive regulation of cell division; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; negative regulation of lipid metabolic process; leukocyte migration; sequestering of triacylglycerol; positive regulation of interleukin-6 biosynthetic process; positive regulation of JNK cascade; negative regulation of transcription from RNA polymerase II promoter; positive regulation of stress-activated MAPK cascade; negative regulation of neurogenesis; positive regulation of interleukin-8 production; negative regulation of cell proliferation; negative regulation of lipid catabolic process; hyaluronan biosynthetic process; protein kinase B signaling cascade; lipopolysaccharide-mediated signaling pathway; regulation of I-kappaB kinase/NF-kappaB cascade; inflammatory response; aging; cytokine and chemokine mediated signaling pathway; MAPKKK cascade; positive regulation of immature T cell proliferation in the thymus; memory; response to ATP; positive regulation of interferon-gamma production; positive regulation of chemokine biosynthetic process; positive regulation of prostaglandin secretion; positive regulation of fever; immune response; positive regulation of protein amino acid phosphorylation; regulation of insulin secretion