1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Interferon & Receptors
  4. IFN-beta
  5. IFN-beta Protein, Human (CHO)

IFN-beta Protein, Human (CHO)

Cat. No.: HY-P73128
COA Handling Instructions

IFN-β (interferon-β) is a key type I interferon cytokine that coordinates the innate immune response to infection, tumors, and inflammation. IFN-β binds to high-affinity (IFNAR2) and low-affinity (IFNAR1) heterodimeric receptors, activates Jak-STAT signaling, and modulates interferon-regulated genes. IFN-beta Protein, Human (CHO) is the recombinant human-derived IFN-beta protein, expressed by CHO , with tag free. The total length of IFN-beta Protein, Human (CHO) is 166 a.a., with molecular weight of 20-23 kDa.

For research use only. We do not sell to patients.

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  • Biological Activity

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Description

IFN-β (interferon-β) is a key type I interferon cytokine that coordinates the innate immune response to infection, tumors, and inflammation. IFN-β binds to high-affinity (IFNAR2) and low-affinity (IFNAR1) heterodimeric receptors, activates Jak-STAT signaling, and modulates interferon-regulated genes. IFN-beta Protein, Human (CHO) is the recombinant human-derived IFN-beta protein, expressed by CHO , with tag free. The total length of IFN-beta Protein, Human (CHO) is 166 a.a., with molecular weight of 20-23 kDa.

Background

IFN-beta (Interferon-beta), a pivotal type I interferon cytokine, assumes a critical role in orchestrating the innate immune response to various challenges, including infections, tumor development, and inflammatory stimuli. Acting through a high-affinity (IFNAR2) and low-affinity (IFNAR1) heterodimeric receptor, IFN-beta triggers the canonical Jak-STAT signaling pathway, leading to the transcriptional activation or repression of interferon-regulated genes. These genes, in turn, encode effectors crucial for the interferon response, encompassing antiviral proteins, regulators of cell proliferation and differentiation, and immunoregulatory proteins. While primarily signaling through the IFNAR1-IFNAR2 heterodimeric receptor, IFN-beta also demonstrates versatility by functioning with IFNAR1 alone and operating independently of Jak-STAT pathways. Its multifaceted effects span antiviral and antibacterial activities, modulation of B-cell development, myelopoiesis, and lipopolysaccharide-inducible production of tumor necrosis factor. In the realm of neuronal homeostasis, IFN-beta emerges as a guardian, regulating dopamine turnover and safeguarding dopaminergic neurons through the promotion of neuronal autophagy and alpha-synuclein clearance, thereby averting dopaminergic neuron loss. Notably, IFN-beta surpasses interferon-alpha (IFN-alpha) in potency, particularly in inducing apoptotic and antiproliferative pathways crucial for controlling tumor cell growth. Presenting as a monomer, IFN-beta embodies a versatile and potent player in diverse physiological responses and immune regulation.

Biological Activity

Measured in antiviral assays using WISH cells infected with vesicular stomatitis virus and the ED50 is 1-20 pg/mL.

Species

Human

Source

CHO

Tag

Tag Free

Accession

P01574 (M22-N187)

Gene ID
Synonyms
Interferon beta; IFN-beta; IFNB1; IFB; IFNB
AA Sequence

MSYNLLGFLQRSSNFQCQKLLWQLNGRLEYCLKDRMNFDIPEEIKQLQQFQKEDAALTIYEMLQNIFAIFRQDSSSTGWNETIVENLLANVYHQINHLKTVLEEKLEKEDFTRGKLMSSLHLKRYYGRILHYLKAKEYSHCAWTIVRVEILRNFYFINRLTGYLRN

Molecular Weight

20-23 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE

Appearance

Lyophilized powder

Formulation

Lyophilized from a 0.2 μm filtered solution of 10 mM NaAC, 40 mM Arg, 0.12mg/ml Met, 146mg/ml Sucrose, 0.1% PF-68, pH 4.5. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

IFN-beta Protein, Human (CHO) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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IFN-beta Protein, Human (CHO)
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HY-P73128
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