1. Recombinant Proteins
  2. Enzymes & Regulators
  3. Oxidoreductases (EC 1)
  4. IDO-2 Protein, Human (His)

IDO-2 Protein, Human (His)

Cat. No.: HY-P70863
COA Handling Instructions

The IDO-2 protein plays a key role in cellular processes, catalyzing the initial and rate-limiting steps in the catabolism of the essential amino acid tryptophan in the kynurenine pathway. This enzymatic activity has been confirmed in multiple studies, establishing IDO-2 as a key regulator of tryptophan metabolism with important implications for immune regulation. IDO-2 Protein, Human (His) is the recombinant human-derived IDO-2 protein, expressed by E. coli , with C-6*His labeled tag. The total length of IDO-2 Protein, Human (His) is 407 a.a., with molecular weight of ~41.43 kDa.

For research use only. We do not sell to patients.

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Description

The IDO-2 protein plays a key role in cellular processes, catalyzing the initial and rate-limiting steps in the catabolism of the essential amino acid tryptophan in the kynurenine pathway. This enzymatic activity has been confirmed in multiple studies, establishing IDO-2 as a key regulator of tryptophan metabolism with important implications for immune regulation. IDO-2 Protein, Human (His) is the recombinant human-derived IDO-2 protein, expressed by E. coli , with C-6*His labeled tag. The total length of IDO-2 Protein, Human (His) is 407 a.a., with molecular weight of ~41.43 kDa.

Background

Indoleamine 2,3-dioxygenase 2 (IDO-2) is an enzyme that catalyzes the first and rate-limiting step in the catabolism of the essential amino acid tryptophan along the kynurenine pathway. This pathway is crucial for the regulation of tryptophan metabolism and has implications in immune regulation. IDO-2's activity contributes to immune modulation by limiting tryptophan availability, which, in turn, affects immune cell function. While IDO-2 is involved in immune regulation, it may not play a significant role in tryptophan-related tumoral resistance, as suggested by certain studies.

Biological Activity

The enzyme activity of this recombinant protein is testing in progress, we cannot offer a guarantee yet.

Species

Human

Source

E. coli

Tag

C-6*His

Accession

Q6ZQW0 (M14-G420)

Gene ID
Molecular Construction
N-term
IDO-2 (M14-G420)
Accession # Q6ZQW0
6*His
C-term
Synonyms
Indoleamine 2,3-dioxygenase 2; Indoleamine 2,3-dioxygenase-like protein 1; Indoleamine pyrrole 2,3-dioxygenase-like protein 1; IDO2; INDOL1
AA Sequence

MEPHRPNVKTAVPLSLESYHISEEYGFLLPDSLKELPDHYRPWMEIANKLPQLIDAHQLQAHVDKMPLLSCQFLKGHREQRLAHLVLSFLTMGYVWQEGEAQPAEVLPRNLALPFVEVSRNLGLPPILVHSDLVLTNWTKKDPDGFLEIGNLETIISFPGGESLHGFILVTALVEKEAVPGIKALVQATNAILQPNQEALLQALQRLRLSIQDITKTLGQMHDYVDPDIFYAGIRIFLSGWKDNPAMPAGLMYEGVSQEPLKYSGGSAAQSTVLHAFDEFLGIRHSKESGDFLYRMRDYMPPSHKAFIEDIHSAPSLRDYILSSGQDHLLTAYNQCVQALAELRSYHITMVTKYLITAAAKAKHGKPNHLPGPPQALKDRGTGGTAVMSFLKSVRDKTLESILHPRG

Molecular Weight

Approximately 41.43 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Solution.

Formulation

Supplied as a 0.2 μm filtered solution of 20 mM Tris-HCl, 10% Glycerol, 1 mM EDTA, 250 mM NaCl, pH 8.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Storage & Stability

Stored at -80°C for 1 year. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Documentation

IDO-2 Protein, Human (His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Product Name:
IDO-2 Protein, Human (His)
Cat. No.:
HY-P70863
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