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.

          • Primary Antibodies ›
          • CD3 Antibodies
          The product (cat # {{productObj.productId}}) that you're looking for has been discontinued and replaced with {{productObj.replacementProductId}}. The product (cat # {{productObj.productId}}) that you're looking for has been discontinued. Please contact Technical Support with any questions.

          Invitrogen

          CD3e Monoclonal Antibody (S4.1), Qdot™ 800

          2 References
          View all (525) CD3 antibodies

          {{$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
          Protocols
          Datasheet
          Protocols

          Cite CD3e Monoclonal Antibody (S4.1), Qdot™ 800

          • Antibody Testing Data (1)
          CD3e Antibody in Flow Cytometry (Flow)
          Group 53 Created with Sketch.
          CD3e Antibody in Flow Cytometry (Flow)
          Group 53 Created with Sketch.

          FIGURE: 1 / 1

          {{ $ctrl.currentElement.advancedVerification.fullName }}
          {{ $ctrl.currentElement.advancedVerification.text }}

          CD3e Antibody (Q22149) in Flow

          Histogram of gated human lymphocytes labeled with CD3 Mouse Anti-Human mAb (clone S4.1), Qdot® 800 Conjugate. Sample was acquired and analyzed using 405 nm excitation and a 780/60 band pass emission filter using a BD LSR II flow cytometer (BD Biosciences, San Jose, CA). {{ $ctrl.currentElement.advancedVerification.fullName }} validation info. View more
          Published figure supplied by benchsci-logo
          PMID: {{$ctrl.currentElement.benchSciPubmedId}}
          View Product

          {{$ctrl.videoDesc}}

          {{$ctrl.videoLongDesc}}

          CD3e Antibody in Flow Cytometry (Flow)

          Product Details

          Q22149

          Applications
          Tested Dilution
          Publications

          Flow Cytometry (Flow)

          Assay-dependent
          -

          Miscellaneous PubMed (MISC)

          -
          View 2 publications 2 publications
          Product Specifications

          Published species

          Human, Mouse

          Host/Isotype

          Mouse / IgG2a

          Class

          Monoclonal

          Type

          Antibody

          Clone

          S4.1

          Immunogen

          Human CD3.

          Conjugate

          Qdot™ 800 Qdot™ 800 Qdot™ 800
          • Pacific Blue
          • Qdot 655
          • Request custom conjugation

          Excitation/Emission Max

          300/792 nm View spectra spectra

          Form

          Liquid

          Storage conditions

          4°C

          RRID

          AB_2556505

          Target Information

          The CD3 complex, composed of gamma, delta, epsilon, and zeta subunits, is essential for the assembly, trafficking, and surface expression of the T cell receptor (TCR) complex. These subunits are structurally related members of the immunoglobulin superfamily and are encoded by closely linked genes on human chromosome 11. CD3 is expressed by thymocytes in a developmentally regulated manner and by all mature T cells, but not on B or NK cells. The CD3 subunits play a crucial role in transducing antigen-recognition signals into the cytoplasm of T cells. The cytoplasmic tails of CD3 subunits contain a double tyrosine-based motif that associates with cytoplasmic signal transduction molecules, mediating T cell activation through the TCR. Crosslinking of the TCR initiates intracellular biochemical pathways that result in cellular activation, proliferation, and potentially growth arrest and cell survival. CD3 is present on 68-82% of normal peripheral blood lymphocytes, 65-85% of thymocytes, and Purkinje cells in the cerebellum. Decreased percentages of T lymphocytes may be observed in some autoimmune diseases. Defects in the CD3 gene are associated with CD3 immunodeficiency, highlighting its importance in immune function and regulation.

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

          How to use the Panel Builder

          Watch the video to learn how to use the Invitrogen Flow Cytometry Panel Builder to build your next flow cytometry panel in 5 easy steps.

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

          Performance Guarantee

          If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*

          Learn more
          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-6964b85fdd-nnkpd:80/100.66.134.75:80.
          git-commit: 018d2145e570c4512be1986d436cde5fa884f61c
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.33.0-2025.07.30-1.0