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AB104463

Recombinant Human TDO2/TDO protein (His tag N-Terminus)

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Recombinant Human TDO2/TDO protein (His tag N-Terminus) is a Human Full Length protein, in the 1 to 406 aa range, expressed in Escherichia coli, with >90%, suitable for SDS-PAGE, Mass Spec.

View Alternative Names

TDO, TDO2, Tryptophan oxygenase, Tryptophan pyrrolase, Tryptophanase, TO, TRPO

1 Images
SDS-PAGE - Recombinant Human TDO2/TDO protein (His tag N-Terminus) (AB104463)
  • SDS-PAGE

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SDS-PAGE - Recombinant Human TDO2/TDO protein (His tag N-Terminus) (AB104463)

15% SDS-PAGE showing ab104463 (3 μg) at approximately 50 kDa.

Key facts

Purity

>90% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE, Mass Spec

applications

Biologically active

No

Accession

P48775

Animal free

No

Carrier free

No

Species

Human

Storage buffer

pH: 8 Constituents: 30% Glycerol (glycerin, glycerine), 1.16% Sodium chloride, 0.316% Tris HCl, 0.077% (R*,R*)-1,4-Dimercaptobutan-2,3-diol, 0.0292% EDTA

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" }, "Mass Spec": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Product details

This product was previously labelled as TDO2
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Sequence info

[{"sequence":"MGSSHHHHHHSSGLVPRGSHMSGCPFLGNNFGYTFKKLPVEGSEEDKSQTGVNRASKGGLIYGNYLHLEKVLNAQELQSETKGNKIHDEHLFIITHQAYELWFKQILWELDSVREIFQNGHVRDERNMLKVVSRMHRVSVILKLLVQQFSILETMTALDFNDFREYLSPASGFQSLQFRLLENKIGVLQNMRVPYNRRHYRDNFKGEENELLLKSEQEKTLLELVEAWLERTPGLEPHGFNFWGKLEKNITRGLEEEFIRIQAKEESEEKEEQVAEFQKQKEVLLSLFDEKRHEHLLSKGERRLSYRALQGALMIYFYREEPRFQVPFQLLTSLMDIDSLMTKWRYNHVCMVHRMLGSKAGTGGSSGYHYLRSTVSDRYKVFVDLFNLSTYLIPRHWIPKMNPTIHKFLYTAEYCDSSYFSSDESD","proteinLength":"Full Length","predictedMolecularWeight":"50 kDa","actualMolecularWeight":null,"aminoAcidEnd":406,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":"P48775","tags":[{"tag":"His","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

TDO2 also known as tryptophan 23-dioxygenase is an enzyme that catalyzes the initial and rate-limiting step in the kynurenine pathway degrading tryptophan to N-formylkynurenine. This reaction is important for regulating systemic tryptophan levels. TDO2 is a heme-containing enzyme with a molecular mass of approximately 53 kDa. It is highly expressed in the liver unlike its counterpart indoleamine 23-dioxygenase (IDO) which has wider tissue distribution. Liver-specific expression suggests its role in orchestrating whole-body tryptophan metabolism.
Biological function summary

TDO2 plays a significant role in maintaining immune tolerance and modulating neurotransmitter levels. While not part of a larger complex it interacts with several other proteins to mediate its effects. By controlling tryptophan availability TDO2 impacts the production of serotonin and downstream kynurenine metabolites affecting neural and immune functions. Its activity influences both central nervous system processes and peripheral immune responses implying a broad impact on various physiological systems.

Pathways

TDO2's function integrates into the kynurenine and serotonin pathways. In the kynurenine pathway TDO2's enzymatic activity leads to the generation of metabolites such as kynurenine and quinolinic acid which have immunoregulatory and excitotoxic properties. The serotonin pathway also indirectly involves TDO2 as it limits tryptophan's availability for serotonin synthesis. TDO2 interacts with IDO in controlling the balance of tryptophan metabolites providing a link between immune signaling and central nervous system regulation.

TDO2 has been implicated in cancer and neurodegenerative diseases. Overexpression of TDO2 is observed in various cancers where it helps create an immune-suppressive environment that aids tumor survival. The enzyme’s upregulation affects tumor microenvironment dynamics often acting in concert with IDO which further mediates immune escape. TDO2's activity may also contribute to neurodegenerative disorders through its impact on kynurenine pathway metabolites which can be neurotoxic. The interplay between TDO2 and IDO suggests that targeting this enzymatic pathway could offer therapeutic avenues in both oncological and neuropsychiatric conditions.
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Specifications

Form

Liquid

Additional notes

ab104463 is purified using conventional chromatography techniques.

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General info

Function

Heme-dependent dioxygenase that catalyzes the oxidative cleavage of the L-tryptophan (L-Trp) pyrrole ring and converts L-tryptophan to N-formyl-L-kynurenine. Catalyzes the oxidative cleavage of the indole moiety.

Sequence similarities

Belongs to the tryptophan 2,3-dioxygenase family.

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Product protocols

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Target data

Heme-dependent dioxygenase that catalyzes the oxidative cleavage of the L-tryptophan (L-Trp) pyrrole ring and converts L-tryptophan to N-formyl-L-kynurenine. Catalyzes the oxidative cleavage of the indole moiety.
See full target information TDO2
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Complementary Products

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Proteins & Peptides

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Biochemicals

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