Purity
Greater than 90% as determined by SDS-PAGE.
Alternative Names
3-dioxygenase; T23O_HUMAN; TDO 2; TDO; tdo2; TO; TPH2; TRPO; Tryptamin 2 3 dioxygenase; Tryptamin 2; Tryptophan 2 3 dioxygenase; Tryptophan 2; Tryptophan oxygenase; Tryptophan pyrrolase; Tryptophanase
Species
Homo sapiens (Human)
Expression Region
1-406aa
Target Protein Sequence
MSGCPFLGNNFGYTFKKLPVEGSEEDKSQTGVNRASKGGLIYGNYLHLEKVLNAQELQSETKGNKIHDEHLFIITHQAYELWFKQILWELDSVREIFQNGHVRDERNMLKVVSRMHRVSVILKLLVQQFSILETMTALDFNDFREYLSPASGFQSLQFRLLENKIGVLQNMRVPYNRRHYRDNFKGEENELLLKSEQEKTLLELVEAWLERTPGLEPHGFNFWGKLEKNITRGLEEEFIRIQAKEESEEKEEQVAEFQKQKEVLLSLFDEKRHEHLLSKGERRLSYRALQGALMIYFYREEPRFQVPFQLLTSLMDIDSLMTKWRYNHVCMVHRMLGSKAGTGGSSGYHYLRSTVSDRYKVFVDLFNLSTYLIPRHWIPKMNPTIHKFLYTAEYCDSSYFSSDESD
Note: The complete sequence including tag
sequence, target protein sequence and linker sequence could be provided upon request.
Protein Length
Full Length
Tag Info
N-terminal 6xHis-tagged
Form
Liquid or Lyophilized powder
Note: We will preferentially ship the format that
we have in stock, however, if you have any special requirement for the format, please remark your
requirement when placing the order, we will prepare according to your demand.
Buffer
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the
glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer,
6% Trehalose, pH 8.0.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw
cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature
and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized
form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.
Description
In the production of recombinant Human TDO2 protein, the gene for TDO2 (Yeast) was cloned into a vector and expressed as TDO2 protein in Yeast. The plasmids with the copy of TDO2, or the expression vector, were often used to enhance gene expression. Every step of production was undergone with a strict QC system. N-terminal 6xHis tag was used in the process. The purity is 90% determined by SDS-PAGE.
TDO2, indoleamine 2,3-dioxygenase 1 (IDO1), and IDO2 are three enzymes that catalyze the amino acid tryptophan into kynurenine in the kynurenine pathway, which accounts for 95% of tryptophan catabolism. TDO2 is mainly expressed in the liver and exists in the brain, while IDO1 and IDO2 have wider tissue expression, including in peripheral blood and immune cells. TDO2 plays an important role in neurological diseases such as Alzheimer’s disease, Parkinson’s disease, and autism. TDO2 is expressed in several established human cancer cell lines, including glioblastoma, colorectal carcinoma, head and neck carcinoma, and gallbladder carcinoma cells. Overexpression of TDO2 promoted tumor cell survival and was correlated with tumor grade and poor prognosis in triple negative breast cancer and in brain tumors. Besides, expression of TDO2 has been reported in human colorectal cancer and leiomyosarcoma.