Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Target Names

IDO2

Uniprot No.

Q6ZQW0

Alternative Names

3-dioxygenase 2; 3-dioxygenase-like protein 1; EC 1.13.11.; I23O2_HUMAN; IDO 2; IDO-2; Ido2; INDOL 1; Indoleamine 2; Indoleamine 2,3 dioxygenase 2; Indoleamine 2,3 dioxygenase like 1 protein ; Indoleamine 2,3 dioxygenase like protein 1; Indoleamine pyrrole 2,3 dioxygenase like 1; Indoleamine pyrrole 2,3 dioxygenase like protein 1; Indoleamine-pyrrole 2

Species

Homo sapiens (Human)

Source

Yeast

Expression Region

1-407aa

Target Protein Sequence

MEPHRPNVKTAVPLSLESYHISEEYGFLLPDSLKELPDHYRPWMEIANKLPQLIDAHQLQAHVDKMPLLSCQFLKGHREQRLAHLVLSFLTMGYVWQEGEAQPAEVLPRNLALPFVEVSRNLGLPPILVHSDLVLTNWTKKDPDGFLEIGNLETIISFPGGESLHGFILVTALVEKEAVPGIKALVQATNAILQPNQEALLQALQRLRLSIQDITKTLGQMHDYVDPDIFYAGIRIFLSGWKDNPAMPAGLMYEGVSQEPLKYSGGSAAQSTVLHAFDEFLGIRHSKESGDFLYRMRDYMPPSHKAFIEDIHSAPSLRDYILSSGQDHLLTAYNQCVQALAELRSYHITMVTKYLITAAAKAKHGKPNHLPGPPQALKDRGTGGTAVMSFLKSVRDKTLESILHPRG
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.

Mol. Weight

50.4kDa

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.

Troubleshooting and FAQs

Protein FAQs

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

3-7 business days

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

The expression of recombinant Human IDO2 protein in Yeast cells requires incorporating a DNA fragment encoding the Human IDO2 protein (14-420aa) into a plasmid vector and transforming this vector into Yeast cells. Positive cells are screened, cultured, and induced to produce the IDO2 protein. A N-terminal 6xHis tag is attached to the protein. The recombinant Human IDO2 protein is collected and purified from the cell lysate through affinity purification. It is assessed through SDS-PAGE and subsequent staining of the gel with Coomassie Brilliant Blue, with a purity of exceeding 90%.

Target Background

Function

Catalyzes the first and rate limiting step of the catabolism of the essential amino acid tryptophan along the kynurenine pathway. Involved in immune regulation. May not play a significant role in tryptophan-related tumoral resistance.

Gene References into Functions

This study demonstrated that IDO2 rs10109853 and rs4503083 polymorphisms are not associated with MS risk, age at onset and disease progression in Italian MS patients. PMID: 28477703
High IDO2 expression is associated with Colorectal Cancer. PMID: 27578919
High IDO2 expression is associated with cervical cancer. PMID: 27106797
functional importance of IDO enzymes in human Crohn's disease PMID: 25541686
Human indoleamine 2,3-dioxygenase-2 has substrate specificity and inhibition characteristics distinct from those of indoleamine 2,3-dioxygenase-1 PMID: 24875753
These results demonstrate that IDO2 plays a novel role as a negative regulator of IDO1 by competing for heme-binding with IDO1. PMID: 25394548
The IDO2 is now known to catalyze the first and rate-limiting step in the catabolism of tryptophan along a relative newcomer to the kynurenine pathway field. PMID: 24105077
Multiple-scattering (MS) analysis of EXAFS data on met-indoleamine 2,3-dioxygenase-2 (IDO2) and analysis of XANES have provided the first direct structural information about the axial donor ligands of the iron center for this recently discovered protein. PMID: 24858687
IDO2 is expressed in both mDCs and plasmacytoid DCs and is not modulated by PGE2. IDO2 expression is constitutively, stably expressed in steady-state conditions and may contribute to the homeostatic tolerogenic capacity of DCs. PMID: 24391212
Indoleamine2,3-dioxygenase and tryptophanyl-tRNA synthetase may play critical roles in the immune pathogenesis of chronic kidney disease. PMID: 23651343
Purification and kinetic characterization of human indoleamine 2,3-dioxygenases 1 and 2 (IDO1 and IDO2) and discovery of selective IDO1 inhibitors. PMID: 21835273
Data show that IDO2-specific T cells are cytotoxic effector cells that recognize and kill tumor cells. PMID: 21406395
Tryptophan supplementation was able to completely restore hepatitis b virus replication in IFN-gamma- but not IFN-alpha-treated cells, which strongly argues that IDO is the primary mediator of IFN-gamma-elicited antiviral response in human hepatocytes. PMID: 21084489
High activity of indoleamine 2,3 dioxygenase enzyme predicts disease severity and case fatality in bacteremic patients. PMID: 19487973
The pro-apoptotic activity of indoleamine 2, 3-dioxygenase is responsible for its transcriptional regulation and the modulation of its pro-apoptotic activity during death receptor activation in melanoma cells. PMID: 19799997
First study to report IDO2 expression in pancreatic ductal adenocarcinoma indicating that IDO2 genetic polymorphisms do not negate interferon-gamma-inducible protein expression. PMID: 19476837
IDO2 encodes a novel IDO-related tryptophan catabolic enzyme that is preferentially inhibited by D-1-methyl-tryptophan (D-1MT). IDO2 may have a distinct role in immune tolerance. Two common human genetic polymorphisms ablate IDO2 enzyme activity. PMID: 17671174
This article describes the evolutionary relationships between the INDO and INDOL1 genes. The INDOL1 protein has a distinct expression pattern compared to INDO and both have the ability to catabolise tryptophan. PMID: 17499941

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Protein Families

Indoleamine 2,3-dioxygenase family

Tissue Specificity

Detected in liver, small intestine, spleen, placenta, thymus, lung, brain, kidney, and colon. Also expressed at low level in testis and thyroid. Not expressed in the majority of human tumor samples (>99%).

Database Links

HGNC: 27269

OMIM: 612129

KEGG: hsa:169355

STRING: 9606.ENSP00000443432

UniGene: Hs.676257

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Code	CSB-YP010997HU
Abbreviation	Recombinant Human IDO2 protein
MSDS	MSDS Datasheet
Size	$250
	Order now
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Recombinant Human Indoleamine 2,3-dioxygenase 2 (IDO2)

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