Hamburger Menu Button
Thermo Fisher Scientific Logo
Sign in
Don't have an account ? Create Account
  • Products
    • Cell Analysis
    • Antibodies
    • Mass Spectrometry
    • Cell Culture
    • Laboratory Instruments
    • Clinical and Diagnostics
    • Chromatography
    • Laboratory Equipment
    • Laboratory Supplies
    • Molecular Biology and Nucleic Acid Analysis
    • Sequence-Specific Nucleic Acid Products
    • See all product categories
  • Applications
    • Cell Culture and Transfection
    • Flow Cytometry
    • Cancer Research
    • Chromatography
    • Sequencing
    • PCR
    • Lab Solutions
    • Allergy Diagnostics
    • See all applications and techniques
  • Services
    • Cell Biology Services
    • Custom Services
    • Training Services
    • Lab Informatics Services
    • Financial and Leasing Services
    • Partnering and Licensing Services
    • 360° CDMO and CRO Solutions
    • CDMO Services
    • CRO Services
    • Food Safety Inspection Services
    • See all services
  • Help and Support
    • How to Order
    • Promotions and Online Offers
    • Contact Us
    • Change Location
    • Create a New Account
    • 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
  • Who We Serve
    • Biotech
    • Biopharma
    • CDMO
    • Lab Diagnostics
    • Industrial and Applied Sciences
  • Special Offers
  • Contact Us
  • Quick Order
  • Documents and Certificates
Thermo Fisher Scientific Logo

Search

Search All
Search button
          • Contact Us
          • Quick Order
          • Sign in
            Sign in
            Don't have an account ? Create Account
            • Account
            • Check Order Status
            • Custom Products & Projects
          • Primary Antibodies ›
          • TDO2 Antibodies

          Proteintech

          TDO2 Polyclonal Antibody

          38 References
          View all (12) TDO2 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
          Certificates
          Protocols
          Questions & Answers
          Tech Support
          Datasheet
          Certificates
          Protocols
          Questions & Answers
          Tech Support
          Datasheet
          Certificates
          Protocols
          Questions & Answers
          Tech Support

          Cite TDO2 Polyclonal Antibody

          Additional Information:
          {{banner.description}}
          {{$ctrl.isSkuNotesCollapsed ? 'View more' : 'View less'}}
          • Antibody Testing Data (4)
          TDO2 Antibody in Immunohistochemistry (Paraffin) (IHC (P))
          Group 53 Created with Sketch.
          TDO2 Antibody in Immunohistochemistry (Paraffin) (IHC (P))
          Group 53 Created with Sketch.

          FIGURE: 1 / 4

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

          TDO2 Antibody (15880-1-AP) in IHC (P)

          Immunohistochemistry of paraffin-embedded human liver cancer tissue slide using 15880-1-AP ( TDO2 Antibody) at dilution of 1:200 (under 40x lens). {{ $ctrl.currentElement.advancedVerification.fullName }} validation info. View more
          Published figure supplied by benchsci-logo
          PMID: {{$ctrl.currentElement.benchSciPubmedId}}
          View Product

          {{$ctrl.videoDesc}}

          {{$ctrl.videoLongDesc}}

          TDO2 Antibody in Immunohistochemistry (Paraffin) (IHC (P))
          TDO2 Antibody in Immunohistochemistry (Paraffin) (IHC (P))
          TDO2 Antibody in Western Blot (WB)
          TDO2 Antibody in Western Blot (WB)
          TDO2 Polyclonal Antibody

          Product Details

          15880-1-AP

          Applications
          Tested Dilution
          Publications

          Western Blot (WB)

          1:500-1:1,000
          View 25 publications 25 publications

          Immunohistochemistry (IHC)

          -
          View 9 publications 9 publications

          Immunohistochemistry (Paraffin) (IHC (P))

          1:100-1:400
          -

          Immunocytochemistry (ICC/IF)

          -
          View 3 publications 3 publications

          Flow Cytometry (Flow)

          -
          View 1 publication 1 publication
          Product Specifications

          Species Reactivity

          Human, Mouse, Rat

          Published species

          Human, Mouse, Rat

          Host/Isotype

          Rabbit / IgG

          Class

          Polyclonal

          Type

          Antibody

          Immunogen

          TDO2 Fusion Protein Ag8642 (55-406 aa encoded by BC005355)
          View immunogen

          Conjugate

          Unconjugated Unconjugated Unconjugated

          Form

          Liquid

          Concentration

          0.3 mg/mL

          Purification

          Antigen affinity chromatography

          Storage buffer

          PBS, pH 7.3, with 50% glycerol

          Contains

          0.02% sodium azide

          Storage conditions

          -20°C

          Shipping conditions

          Wet ice (domestic); Dry ice (international)

          Product Specific Information

          Immunogen sequence: QELQSETKG NKIHDEHLFI ITHQAYELWF KQILWELDSV REIFQNGHVR DERNMLKVVS RMHRVSVILK LLVQQFSILE TMTALDFNDF REYLSPASGF QSLQFRLLEN KIGVLQNMRV PYNRRHYRDN FKGEENELLL KSEQEKTLLE LVEAWLERTP GLEPHGFNFW GKLEKNITRG LEEEFIRIQA KEESEEKEEQ VAEFQKQKEV LLSLFDEKRH EHLLSKGERR LSYRALQGAL MIYFYREEPR FQVPFQLLTS LMDIDSLMTK WRYNHVCMVH RMLGSKAGTG GSSGYHYLRS TVSDRYKVFV DLFNLSTYLI PRHWIPKMNP TIHKFLYTAE YCDSSYFSSD ESD (55-406 aa encoded by BC005355)

          Target Information

          Tryptophan 2,3-dioxygenase (TDO2) is an enzyme encoded by the TDO2 gene, predominantly expressed in the liver and playing a crucial role in tryptophan metabolism through the kynurenine pathway. TDO2 catalyzes the first and rate-limiting step of this pathway, converting tryptophan into N-formylkynurenine. This metabolic process is vital for maintaining systemic tryptophan homeostasis and regulating its availability for protein synthesis and serotonin production. Beyond its metabolic function, TDO2 is involved in modulating immune responses. It contributes to immune tolerance by depleting tryptophan, thereby inhibiting T cell proliferation and promoting regulatory T cell development. Recent research has identified TDO2's role in cancer, particularly in shaping the tumor microenvironment and facilitating immune escape mechanisms through tryptophan catabolism. Its expression is upregulated in several cancers, including gliomas, correlating with tumor severity and patient prognosis. TDO2 and its associated pathways have become therapeutic targets in cancer immunotherapy due to their influence on immune system modulation and metabolism.

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

          Bioinformatics

          Protein Aliases: TDO; tdo variant1; tdo variant2; TDO {ECO:0000255|HAMAP-Rule:MF_03020}; TDO2; TO; TO {ECO:0000255|HAMAP-Rule:MF_03020}; TRPO; TRPO {ECO:0000255|HAMAP-Rule:MF_03020}; Tryptamin 2,3-dioxygenase; tryptamin 2,3-dioxygenase {ECO:0000255|HAMAP-Rule:MF_03020}; Tryptophan 2,3-dioxygenase; tryptophan 2,3-dioxygenase A; tryptophan 2,3-dioxygenase {ECO:0000255|HAMAP-Rule:MF_03020}; Tryptophan oxygenase; tryptophan oxygenase {ECO:0000255|HAMAP-Rule:MF_03020}; Tryptophan pyrrolase; tryptophan pyrrolase {ECO:0000255|HAMAP-Rule:MF_03020}; tryptophan-2,3-dioxygenase; tryptophan-23-dioxygenase; Tryptophanase; tryptophanase {ECO:0000255|HAMAP-Rule:MF_03020}

          View more View less

          Gene Aliases: AA407491; chky; TDO; TDO2; TO; TPH2; TRPO

          View more View less

          UniProt ID: (Human) P48775, (Mouse) P48776, (Rat) P21643

          View more View less

          Entrez Gene ID: (Human) 6999, (Mouse) 56720, (Rat) 64206

          View more View less

          Function(s)
          tryptophan 2,3-dioxygenase activity protein binding amino acid binding oxygen binding heme binding metal ion binding oxidoreductase activity dioxygenase activity oxygenase
          Process(es)
          tryptophan catabolic process tryptophan catabolic process to kynurenine tryptophan catabolic process to acetyl-CoA oxidation-reduction process tryptophan metabolic process
          It has to be done as per old AB suggested Products section.

          Disclaimer

          Close

          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.

          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
          • Social Media
          • Contact Us
          • Report a Site Issue
          About Thermo Fisher Plus Icon Minus Icon
          • About Us About Us
          • Careers Careers
          • Investors Investors
          • News News
          • Responsibility Responsibility
          • Trademarks
          • Policies and Notices
          Our Portfolio Plus Icon Minus Icon
          • Thermo Scientific
          • Applied Biosystems
          • Invitrogen
          • Gibco
          • Ion Torrent
          • Fisher Scientific
          • Patheon
          • PPD
          • Terms & Conditions
          • Privacy Policy
          • Price & Freight Policy
          © 2006-2026 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified.
          Chile flag icon
          Chile

          Your items have has been added!


          Host server : magellan-search-green-7d94cb4b65-6wvps:80/100.66.75.98:80.
          git-commit: c9e08c96761173abe34e68f880379696776a4827
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.44.1-2026.02.97.1.0