IFN beta Recombinant Protein

IFN beta Recombinant Protein

• Description: Proteins of this family play an important role in inducing non-specific resistance against a broad range of viral infections. They also affect cell proliferation and modulate immune responses. Produced by peripheral blood leukocytes and lymphoblastoid cells, IFN-alpha is an acid stable molecule that signals through IFN-alpha/betaR, which is also used by IFN-beta. Both IFNs have similar anti-viral activity and regulate expression of MHC class I antigens. IFN-alpha contains four highly conserved cysteine residues which form two disulfide bonds, one of which is necessary for biological activity. Recombinant human IFN-beta is a 20.0 kDa protein containing 166 amino acid residues. Due to glycosylation, IFN-beta has an approximate MW of 22.3 kDa based on SDS-PAGE gel and Mass Spectrometry.
• Synonyms: IFNB1; IFB; IFF; IFNB
• CAS Number: 9000-83-3
• NCBI Gene ID: 3456
• UniProt: P01574
• Accession Number: NP_002167.1
• Accession Number mRNA: NM_002176
• Gene Location: 9p21
• Host: CHO
• Origin Species: Human
• Species Reactivity: Monkey, Mouse, Human
• Sequence: MSYNLLGFLQ RSSNFQCQKL LWQLNGRLEY CLKDRMNFDI PEEIKQLQQF QKEDAALTIY EMLQNIFAIF RQDSSSTGWN ETIVENLLAN VYHQINHLKT VLEEKLEKED FTRGKLMSSL HLKRYYGRIL HYLKAKEYSH CAWTIVRVEI LRNFYFINRL TGYLRN
• Detection Range: Assay #1: Determined by its ability to induce STAT1/STAT2 activation in human COLO 205 ISRE LUC reporter cells. Assay #2: Determined by a cytotoxicity assay using human TF-1 cells. The expected ED50 is ≤ 0.1 ng/ml (specific activity of ≥ 1 x 10^7 units/mg).
• Endotoxin: < 0.1 ng/µg of protein (<1EU/µg)
• Purity: > 95% by SDS-PAGE & HPLC analyses
• Length: 166
• Form: Lyophilized
• Molecular Weight: 20 kDa
• Shipping Conditions: Room Temperature