For the best experience on the Abcam website please upgrade to a modern browser such as Google Chrome

Hello. We're improving abcam.com and we'd welcome your feedback.

Hello. We're improving abcam.com and we'd welcome your feedback.

Infomation icon

We haven't added this to the BETA yet

New BETA website

New BETA website

Hello. We're improving abcam.com and we'd welcome your feedback.

Take a look at our BETA site and see what we’ve done so far.

Switch on our new BETA site

Now available

Search and browse selected products

  • A selection of primary antibodies

Purchase these through your usual distributor

In the coming months

  • Additional product types
  • Supporting content
  • Sign in to your account
  • Purchase online
United States
Your country/region is currently set to:

If incorrect, please enter your country/region into the box below, to view site information related to your country/region.

Call (888) 77-ABCAM (22226) or contact us
Need help? Contact us

  • My account
  • Sign out
Sign in or Register with us

Welcome

Sign in or

Don't have an account?

Register with us
My basket
Quick order
Abcam homepage

  • Research Products
    By product type
    Primary antibodies
    Secondary antibodies
    ELISA and Matched Antibody Pair Kits
    Cell and tissue imaging tools
    Cellular and biochemical assays
    By product type
    Proteins and Peptides
    Proteomics tools
    Agonists, activators, antagonists and inhibitors
    Cell lines and Lysates
    Multiplex Assays
    By research area
    Cancer
    Cardiovascular
    Cell Biology
    Epigenetics
    Metabolism
    Developmental Biology
    By research area
    Immunology
    Microbiology
    Neuroscience
    Signal Transduction
    Stem Cells
  • Customized Products & Partnerships
    Customized Products & Partnerships

    Customized products and commercial partnerships to accelerate your diagnostic and therapeutic programs.

    Customized products

    Partner with us

  • Support
    Support hub

    Access advice and support for any research roadblock

    View support hub

    Protocols

    Your experiments laid out step by step

    View protocols

  • Events
    • Conference calendar
    • Cancer
    • Cardiovascular
    • Epigenetics & Nuclear signaling
    • Immunology
    • Neuroscience
    • Stem cells
    • Tradeshows
    • Scientific webinars
    Keep up to date with the latest events

    Full event breakdown with abstracts, speakers, registration and more

    View global event calendar

  • Pathways
    Cell signalling pathways

    View all pathways

    View all interactive pathways

Home Proteins and Peptides

Immunoglobulin proteins

Product
  • Browse all related products

Natural and recombinant immunoglobulin proteins are available to a variety of popular targets including IgE, IgG and many more. The range is validated in popular applications and verified by you through reviews and high impact factor publications.

Browse all related products

Features

High quality IgE protein

View our popular IgE full length protein purified from a human monoclonal cell line.

Natural immunoglobulin proteins

Search our comprehensive range of natural and recombinant IgA, IgD, IgG, IgM, and IgE proteins.

Native Human IgG4 protein

See our IgG4 full length, human protein.

Native Human IgA protein

Discover our popular full length IgA human protein. 

  • All
  • Article
  • Products
  • Protocols

Abreviews: our review and reward program

638260667080000000

Article

Antibody structure and isotypes

638247722760000000

Protocol

Protocols and troubleshooting tips, to help get the best from our antibodies

638225237700000000

Protocol

Western blot troubleshooting tips

638119902640000000

Protocol

Native Human IgG4 protein (ab183266)

637364709920000000

Product

Native Human IgM Fc fragment protein (ab90287)

636899001650000000

Product

Recombinant Human IgG1 protein (ab155632)

636899001170000000

Product

Native Human IgA2 protein (ab91021)

636898999270000000

Product

Native Human IgE protein (ab90392)

636898998680000000

Product

Native Human IgG protein (ab98981)

636898998170000000

Product

Native Human IgM protein (ab91117)

636898997100000000

Product

Natural Human IgE protein (ab152001)

636898996600000000

Product

Native Human IgG1 protein (ab184886)

636898996040000000

Product

Native Human IgG protein (ab91102)

636898995550000000

Product

Native Human Human IgG FC fragment protein (ab205805)

636898994960000000

Product

Native Human IgD protein (ab91022)

636898994180000000

Product

Native Human IgG Fab fragment protein (ab90352)

636898993550000000

Product

Native Human IgA protein (ab91025)

636898990180000000

Product

Native Human IgG FC fragment protein (ab90285)

636898989960000000

Product

Native Human IgG1 protein (ab90283)

636898987830000000

Product

Native Human IgE protein (Azide free) (ab65866)

636898987290000000

Product

Highly purified native and recombinant human IgE, IgA, IgD, IgM, IgG and Fc fragments

635652915660000000

Product

Get resources and offers direct to your inbox Sign up
A-Z by research area
  • Cancer
  • Cardiovascular
  • Cell biology
  • Developmental biology
  • Epigenetics & Nuclear signaling
  • Immunology
  • Metabolism
  • Microbiology
  • Neuroscience
  • Signal transduction
  • Stem cells
A-Z by product type
  • Primary antibodies
  • Secondary antibodies
  • Biochemicals
  • Isotype controls
  • Flow cytometry multi-color selector
  • Kits
  • Loading controls
  • Lysates
  • Peptides
  • Proteins
  • Slides
  • Tags and cell markers
  • Tools & Reagents
Help & support
  • Support
  • Make an Inquiry
  • Protocols & troubleshooting
  • Placing an order
  • RabMAb products
  • Biochemical product FAQs
  • Training
  • Browse by Target
Company
  • Corporate site
  • Investor relations
  • Company news
  • Careers
  • About us
  • Blog
Events
  • Tradeshows
  • Conferences
International websites
  • abcam.cn
  • abcam.co.jp

Join with us

  • LinkedIn
  • facebook
  • Twitter
  • YouTube
  • Terms of sale
  • Website terms of use
  • Cookie policy
  • Privacy policy
  • Legal
  • Modern slavery statement
© 1998-2023 Abcam plc. All rights reserved.