Hamburger Menu Button
Thermo Fisher Scientific Logo
Sign in
Don't have an account ? Create Account
  • Products
    • Antibodies
    • Cell Culture Media
    • Chemicals
    • Chromatography Columns and Cartridges
    • Lab Equipment
    • Lab Plasticware and Supplies
    • Microplates
    • Oligos, Primers, Probes and Genes
    • TaqMan Real-Time PCR Assays
    • Greener Products
    • See all product categories
  • Applications
    • Bioprocessing
    • Cell Culture and Transfection
    • Cell and Gene Therapy
    • Chromatography
    • Molecular Testing
    • Digital Solutions
    • DNA and RNA Extraction and Analysis
    • Spectroscopy, Elemental and Isotope Analysis
    • See all applications and techniques
  • Services
    • 360° CDMO and CRO Solutions
    • CDMO Services
    • CRO Services
    • Custom Services
    • Enterprise Services
    • Financial and Leasing Services
    • Instrument Services
    • Lab Informatics
    • OEM and Commercial Supply
    • Training Services
    • Unity Lab Services
    • See all services
  • Help and Support
    • How to Order
    • Instrument Support
    • Learning Centers
    • Register for an Account
    • Technical Support Centers
    • See all help and support topics
  • Popular
    • TaqMan Real-Time PCR Assays
      TaqMan Real-Time PCR Assays
    • Antibodies
      Antibodies
    • Oligos, Primers & Probes
      Oligos, Primers & Probes
    • GeneArt Gene Synthesis
      GeneArt Gene Synthesis
    • Cell Culture Plastics
      Cell Culture Plastics
  • Contact Us
  • Quick Order
  • Order Status and Tracking
  • Documents and Certificates
Thermo Fisher Scientific Logo

Search Thermo Fisher Scientific

Search All
Search button Close
          • Order Status
          • Quick Order
          • Sign in
            Sign in
            Don't have an account ? Create Account
            • Account
            • Check Order Status
            • Aspire Member Program
            • Connect: Lab, Data, Apps
            • Custom Products & Projects
            • Services Central

          Disclaimer

          Clicking the images or links will redirect you to a website hosted by BenchSci that provides third-party scientific content. Neither the content nor the BenchSci technology and processes for selection have been evaluated by us; we are providing them as-is and without warranty of any kind, including for use or application of the Thermo Fisher Scientific products presented.

          • Proteins & Peptides ›
          • Interferon alpha-2b Proteins

          Invitrogen

          Human IFN-alpha 2 (alpha 2b) Recombinant Protein

          View all (2) Interferon alpha-2b proteins

          {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.promotions']}}

          {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.viewpromo']}}

          {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.promocode']}}: {{promo.promoCode}} {{promo.promoTitle}} {{promo.promoDescription}}. {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.learnmore']}}

          Datasheet
          Tech Support
          Datasheet
          Tech Support

          Cite Human IFN-alpha 2 (alpha 2b) Recombinant Protein

          Product Details

          111051

          Applications
          Tested Dilution
          Publications

          Western Blot (WB)

          Assay-dependent
          -

          ELISA (ELISA)

          Assay-dependent
          -

          Immunoprecipitation (IP)

          Assay-dependent
          -
          Product Specifications

          Species

          Human

          Expression System

          E. coli

          Molecular weight

          19.3 kDa

          Class

          Recombinant

          Type

          Protein

          Purity

          >95%

          Endotoxin concentration

          <1 EU/µg

          Activity

          EC50 ~ 1 U/mL; determined by use of the cytopathic effect inhibition assay described in [Rubinstein, S. et al. (1981). J. Virol. 37, 755-758]; [Familletti, P.C. et al. (1981). Methods in Enzymology, Vol. 78, 387-394]. The units are determined with respect to the international reference standard for human interferon alpha A (Hu-IFN-alpha-A) provided by the National Institutes of Health [see Pestka, S. (1986). Methods in Enzymology, Academic Press, New York 119, 14-23]. Unit of activity measured on bovine MDBK cells with vesicular stomatitis virus (VSV).

          Conjugate

          Unconjugated Unconjugated Unconjugated

          Form

          Liquid

          Concentration

          Lot-specific

          Purification

          purified

          Storage buffer

          PBS with 0.1% BSA

          Contains

          no preservative

          Storage conditions

          -80°C, Avoid Freeze/Thaw Cycles

          Shipping conditions

          Dry ice

          Product Specific Information

          After receipt, the product may be stored at -20°C for short-term use (less than 6 months). For long-term storage, store the product at -70°C or below for retention of full activity. Thaw product vial by incubation in cold tap water until just thawed. Aliquot and refreeze unused contents to minimize effects of freeze thawing. Refreezing should be done on dry ice or in a dry ice/alcohol bath. Further dilution of product should be in buffers containing protein such as 0.1% BSA or tissue culture media with serum.

          Target Information

          Interferon alpha-2b is a cytokine that belongs to the type I interferon family and is encoded by a gene cluster on chromosome 9. It is produced in response to viral infection and plays a key role in the innate immune response, exhibiting potent antiviral, antiproliferative and immunomodulatory properties. Interferon alpha-2b binds to a plasma membrane receptor consisting of IFNAR1 and IFNAR2, which is expressed ubiquitously in the body and can thus act on virtually all cells. This cytokine is effective in reducing the symptoms and duration of the common cold, and has shown efficacy in treating various types of cancer, including hematological malignancies and solid tumors. A deficiency of type I interferon in the blood is considered a hallmark of severe COVID-19, and a combination therapy involving interferon alpha-2b may be a potential therapeutic approach. IFNA2 has been associated with diseases such as Severe Covid-19 and Hepatitis B.

          For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

          References (0)

          Have you cited this product in a publication?
          Let us know so we can reference it here.
          Cite this product

          Bioinformatics

          Protein Aliases: alpha-2a interferon; IFN-alpha-2; Interferon; interferon alpha 2a; interferon alpha 2b; interferon alpha A; Interferon alpha-2; Interferon alpha-A; interferon, alpha 2; LeIF A

          View more View less

          Gene Aliases: IFN-alphaA; IFNA; IFNA2; IFNA2A; IFNA2B; IFNA2C; INFA2

          View more View less

          UniProt ID: (Human) P01563

          View more View less

          Entrez Gene ID: (Human) 3440

          View more View less

          It has to be done as per old AB suggested Products section.
          help_icon

          We're here to help

          Get expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.

          Contact tech support
          Ordering Plus Icon Minus Icon
          • Order Status
          • Order Help
          • Quick Order
          • Supply Center
          • eProcurement
          Support Plus Icon Minus Icon
          • Help and Support
          • Contact Us
          • Technical Support Centers
          • Documents and Certificates
          • Report a Site Issue
          Resources Plus Icon Minus Icon
          • Learning Centers
          • Promotions
          • Events and Webinars
          • Social Media
          About Thermo Fisher Plus Icon Minus Icon
          • About Us
          • Careers
          • Investors
          • News
          • Social Responsibility
          • Trademarks
          • Consumer Health Data Privacy Policy
          Our Portfolio Plus Icon Minus Icon
          • Thermo Scientific
          • Applied Biosystems
          • Invitrogen
          • Gibco
          • Ion Torrent
          • Fisher Scientific
          • Unity Lab Services
          • Patheon
          • PPD
          • Terms & Conditions
          • Privacy Information Center
          • Price & Freight Policy
          © 2006-2025 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified.
          United States flag icon
          United States

          Your items have has been added!


          Host server : magellan-search-845544bffd-2w6sl:80/100.66.135.11:80.
          git-commit: 2bb44be0f35b85de1c1d8e4f377b85e7a3a71488
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.32.0-2025.07.28-1.0