IFNB1 active protein

Recombinant Human IFNB1

Cat. Num. AAA4159766

• Gene Names: IFNB1; IFB; IFF; IFNB; IFN-beta
• Purity: >95% as determined by SDS-PAGE
• Synonyms: IFNB1; Recombinant Human IFNB1; IFN-beta; Immune interferon; Fibroblast interferon; Leukocyte interferon; B cell interferon; Type I interferon; Recombinant Human Interferon-Beta 1A (IFNB1); IFNB1 active protein

• Host: CHO Cells
• Purity/Purification: >95% as determined by SDS-PAGE
• Form/Format: Lyophilized from a 0.2 um filtered sodium acetate solution pH 4.8.
• Sequence Length: 187

• Bioactivity: The activity was determined by the viral resistance assay of Human WISH cells was found to be in the range of 3.0 x 10^8 IU/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.

Related Product Information for IFNB1 active protein

IFN-beta is produced mainly by fibroblasts and some epithelial cell types. The synthesis of IFN-beta can be induced by common inducers of interferons including viruses, double-stranded RNA, and micro-organisms. It is induced also by some cytokines such as TNF and IL-1. IFN-beta binds to the same receptor as IFN-alpha. IFN-beta is involved in the regulation of unspecific humoral immune responses and immune responses against viral infections. IFN-beta increases the expression of HLA class 1 antigens and blocks the expression of HLA class 2 antigens stimulated by IFN-gamma. IFN-beta stimulates the activity of natural killer cells and hence also antibody-dependent cytotoxicity. IFN-beta shows antiproliferative activity against a number of cell lines established from solid tumors.

NCBI and Uniprot Product Information

• NCBI GI #: 4504603
• NCBI GeneID: 3456
• NCBI Accession #: NP_002167.1
• NCBI GenBank Nucleotide #: NP_002167.1
• UniProt Accession #: P01574
• Molecular Weight: 19.0 kDa
• NCBI Official Full Name: interferon beta
• NCBI Official Synonym Full Names: interferon beta 1
• NCBI Official Symbol: IFNB1
• NCBI Official Synonym Symbols: IFB; IFF; IFNB; IFN-beta
• NCBI Protein Information: interferon beta
• UniProt Protein Name: Interferon beta
• Protein Family: Interferon
• UniProt Gene Name: IFNB1
• UniProt Synonym Gene Names: IFB; IFNB; IFN-beta
• UniProt Entry Name: IFNB_HUMAN

NCBI Description

This gene encodes a cytokine that belongs to the interferon family of signaling proteins, which are released as part of the innate immune response to pathogens. The protein encoded by this gene belongs to the type I class of interferons, which are important for defense against viral infections. In addition, type I interferons are involved in cell differentiation and anti-tumor defenses. Following secretion in response to a pathogen, type I interferons bind a homologous receptor complex and induce transcription of genes such as those encoding inflammatory cytokines and chemokines. Overactivation of type I interferon secretion is linked to autoimmune diseases. Mice deficient for this gene display several phenotypes including defects in B cell maturation and increased susceptibility to viral infection. [provided by RefSeq, Sep 2015]

Uniprot Description

IFNB1: Has antiviral, antibacterial and anticancer activities. Belongs to the alpha/beta interferon family.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 9p21

Cellular Component: extracellular space; extracellular region

Molecular Function: interferon-alpha/beta receptor binding; cytokine activity

Biological Process: B cell proliferation; adaptive immune response; cytokine and chemokine mediated signaling pathway; response to virus; regulation of MHC class I biosynthetic process; natural killer cell activation; negative regulation of T cell differentiation; humoral immune response; T cell activation during immune response; cell surface receptor linked signal transduction; response to exogenous dsRNA; negative regulation of viral genome replication; B cell differentiation; defense response to bacterium; positive regulation of innate immune response; natural killer cell activation during immune response; innate immune response; positive regulation of transcription from RNA polymerase II promoter; blood coagulation; defense response to virus; positive regulation of peptidyl-serine phosphorylation of STAT protein; B cell activation during immune response