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 ›
          • TRA-1-81 Antibodies

          Invitrogen

          TRA-1-81 Monoclonal Antibody (TRA-1-81)

          4 References
          View all (9) TRA-1-81 antibodies
          Datasheet
          Protocols
          Questions & Answers
          Datasheet
          Protocols
          Questions & Answers

          Cite TRA-1-81 Monoclonal Antibody (TRA-1-81)

          • Antibody Testing Data (7)
          TRA-1-81 Antibody in Immunocytochemistry (ICC/IF)
          Group 53 Created with Sketch.
          TRA-1-81 Antibody in Immunocytochemistry (ICC/IF)
          Group 53 Created with Sketch.

          FIGURE: 1 / 7

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

          TRA-1-81 Antibody (MA1-024) in ICC/IF

          Immunofluorescent analysis of TRA-1-81 using anti-TRA-1-81 monoclonal antibody (Product # MA1-024) shows staining on the cell surface of human H9 human embryonic stem cells, indicating pluripotency. TRA-1-81 staining (green) and an overlay image of TRA-1-81 with DAPI (blue) is shown. H9 human embryonic stem cells were grown on matrigel coated chamber slides and fixed with formaldehyde prior to staining. Cells were probed with a Monoclonal antibody recognizing TRA-1-81 (Product # MA1-024) at a dilution of 1:20 overnight at 4 °C, washed with... View More {{ $ctrl.currentElement.advancedVerification.fullName }} validation info. View more
          Published figure supplied by benchsci-logo
          PMID: {{$ctrl.currentElement.benchSciPubmedId}}
          View Product

          {{$ctrl.videoDesc}}

          {{$ctrl.videoLongDesc}}

          TRA-1-81 Antibody in Immunocytochemistry (ICC/IF)
          TRA-1-81 Antibody in Immunocytochemistry (ICC/IF)
          TRA-1-81 Antibody in Immunocytochemistry (ICC/IF)
          TRA-1-81 Antibody in Western Blot (WB)
          TRA-1-81 Antibody in Flow Cytometry (Flow)
          TRA-1-81 Antibody in Flow Cytometry (Flow)
          TRA-1-81 Antibody in Flow Cytometry (Flow)

          Product Details

          MA1-024

          Applications
          Tested Dilution
          Publications

          Western Blot (WB)

          1:1,000-1:5,000
          -

          Immunocytochemistry (ICC/IF)

          1:100-1:500
          View 3 publications 3 publications

          Flow Cytometry (Flow)

          0.4 µg
          -

          Miscellaneous PubMed (MISC)

          -
          View 1 publication 1 publication
          Product Specifications

          Species Reactivity

          Human

          Published species

          Bovine, Human

          Host/Isotype

          Mouse / IgM

          Class

          Monoclonal

          Type

          Antibody

          Clone

          TRA-1-81

          Immunogen

          human embryonal carcinoma cell line 2102Ep

          Conjugate

          Unconjugated Unconjugated Unconjugated
          • DyLight 488
          • DyLight 550
          • DyLight 650
          • PE 
          • Request custom conjugation

          Form

          Liquid

          Concentration

          1 mg/mL

          Purification

          Affinity chromatography - MBP

          Storage buffer

          PBS with 1mg/mL BSA

          Contains

          0.05% sodium azide

          Storage conditions

          -20°C, Avoid Freeze/Thaw Cycles

          Shipping conditions

          Ambient (domestic); Wet ice (international)

          RRID

          AB_2536706

          Target Information

          TRA-1-81 is a cell surface antigen expressed along with SSEA-3, SSEA-4 and TRA-1-60 in human embryonic stem cells, embryonal carcinoma cells and induced pluripotent stem cells (iPS). These surface markers are down-regulated during the differentiation process. In contrast, SSEA-1 is absent in undifferentiated human stem cells but is present on the cell surface after retinoic acid mediated differentiation.

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

          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-587cc6cfbd-ct8xs:80/100.66.129.252:80.
          git-commit: 43c1f9e84613abe662391d2f5aa289917b685966
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.30.1-2025.05.22-1.0