IL-12B active protein

Human IL-12B Protein, Fc Tag

Cat. Num. AAA9718664

• Gene Names: IL12B; CLMF; NKSF; CLMF2; IMD28; IMD29; NKSF2; IL-12B
• Purity: >85% as determined by SDS-PAGE
• Synonyms: IL-12B; Human IL-12B Protein; Fc Tag; Recombinant Human IL12B Protein; Fc Tag (Interleukin-12 subunit beta) expressed in Human Cells; CLMF; CLMF2; IMD28; IMD29; NKSF; NKSF2; Interleukin-12 subunit beta; IL12B; IL-12B active protein

• Host: Human Cells
• Purity/Purification: >85% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile 100mM Glycine, 10mM NaCl, 50mM Tris, pH 7.5
• Sequence: Amino acid sequence derived from p40 subunit of human IL12, termed asIL12B (NP_002178.2) (Met 1-Ser 328) was fused with the Fc region ofhuman IgG1 at the C-terminus.
• Sequence Length: 328

• Species: Human
• Endotoxin: The Endotoxin level is less than 1.0 EU per mug of the protein as determined by the LAL method
• Protein Length: The recombinant human IL12B consists of 544 amino acids and has a predicted molecular mass of 61.4 kDa.
• Activity: Measured by its binding ability in a functional ELISA . Immobilized human IL12RB1 at 20 mug/ml (100 mul/well) can bind human IL12B with a linear ranger of 2.56-64 ng/ml.
• Usage Notes: Always centrifuge tubes before opening. It is recommended to reconstitute the lyophilized Human IL12B protein, Fc Tag in sterile ddH2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
• Preparation and Storage: Item should be stored desiccated below -20 degree C. Upon reconstitution, the protein should be stored at 4 degree C between 2-7 days and for future use below -20 degree C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.

SDS-Page

(Fig.SDS-PAGE analysis of Human IL-12B protein, Fc Tag.)

Related Product Information for IL-12B active protein

Subunit beta of interleukin 12 (also known as natural killer cell stimulatory factor 2, or cytotoxic lymphocyte maturation factor 2, p40) (IL12B) is a subunit of human interleukin 12. IL12B/IL-12B is a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. Interleukin 12 is a disulfide-linked heterodimer composed of the 40 kD cytokine receptor like subunit encoded by this gene, and a 35 kD subunit encoded by IL12A. IL12B/IL-12B is expressed by activated macrophages that serve as an essential inducer of Th1 cells development. This cytokine has been found to be important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of this gene was observed in the central nervous system of patients with multiple sclerosis (MS), suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of this gene has been reported to be associated with the severity of atopic and non-atopic asthma in children. IL12B/IL-12B associates with IL23A to form the IL-23 interleukin, an heterodimeric cytokine which functions in innate and adaptive immunity.

NCBI and Uniprot Product Information

• NCBI GI #: 24497438
• NCBI GeneID: 3593
• NCBI Accession #: NP_002178.2
• NCBI GenBank Nucleotide #: NP_002178.2
• UniProt Accession #: P29460
• Molecular Weight: 61.4 kDa
• NCBI Official Full Name: interleukin-12 subunit beta
• NCBI Official Synonym Full Names: interleukin 12B
• NCBI Official Symbol: IL12B
• NCBI Official Synonym Symbols: CLMF; NKSF; CLMF2; IMD28; IMD29; NKSF2; IL-12B
• NCBI Protein Information: interleukin-12 subunit beta

NCBI Description

This gene encodes a subunit of interleukin 12, a cytokine that acts on T and natural killer cells, and has a broad array of biological activities. Interleukin 12 is a disulfide-linked heterodimer composed of the 40 kD cytokine receptor like subunit encoded by this gene, and a 35 kD subunit encoded by IL12A. This cytokine is expressed by activated macrophages that serve as an essential inducer of Th1 cells development. This cytokine has been found to be important for sustaining a sufficient number of memory/effector Th1 cells to mediate long-term protection to an intracellular pathogen. Overexpression of this gene was observed in the central nervous system of patients with multiple sclerosis (MS), suggesting a role of this cytokine in the pathogenesis of the disease. The promoter polymorphism of this gene has been reported to be associated with the severity of atopic and non-atopic asthma in children. [provided by RefSeq, Jul 2008]