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  2. Enzymes & Regulators
  3. Oxidoreductases (EC 1)
  4. Tryptophan Hydroxylase 1/TPH-1 Protein, Human (His)

Tryptophan Hydroxylase 1/TPH-1 Protein, Human (His)

Cat. No.: HY-P73566
Handling Instructions Technical Support

The tryptophan hydroxylase 1 (TPH-1) protein is key to serotonin biosynthesis, catalyzing the rate-limiting step: the oxidation of L-tryptophan to 5-hydroxy-L-tryptophan. This enzyme activity is critical for the synthesis of serotonin, a neurotransmitter that affects mood, sleep, and appetite. Tryptophan Hydroxylase 1/TPH-1 Protein, Human (His) is the recombinant human-derived Tryptophan Hydroxylase 1/TPH-1 protein, expressed by E. coli , with N-His labeled tag.

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

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  • Biological Activity

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Description

The tryptophan hydroxylase 1 (TPH-1) protein is key to serotonin biosynthesis, catalyzing the rate-limiting step: the oxidation of L-tryptophan to 5-hydroxy-L-tryptophan. This enzyme activity is critical for the synthesis of serotonin, a neurotransmitter that affects mood, sleep, and appetite. Tryptophan Hydroxylase 1/TPH-1 Protein, Human (His) is the recombinant human-derived Tryptophan Hydroxylase 1/TPH-1 protein, expressed by E. coli , with N-His labeled tag.

Background

Tryptophan Hydroxylase 1 (TPH-1) Protein plays a pivotal role in serotonin biosynthesis by catalyzing the rate-determining step, which involves the oxidation of L-tryptophan to 5-hydroxy-L-tryptophan. This enzymatic activity is crucial for the synthesis of serotonin, a neurotransmitter with essential roles in various physiological processes, including mood regulation, sleep, and appetite. TPH-1's ability to convert L-tryptophan to 5-hydroxy-L-tryptophan is a key regulatory step in the serotonin pathway, highlighting its significance in neurotransmitter production and neurotransmission.

Biological Activity

Measured by its ability to catalyze Trp hydroxylation to 5- HTP.

Species

Human

Source

E. coli

Tag

N-His

Accession

P17752 (I2-I444)

Gene ID
Molecular Construction
N-term
His
TPH-1 (I2-I444)
Accession # P17752
C-term
Protein Length

Partial

Synonyms
TPH; TPH-1; TPRH; Tryptophan 5-hydroxylase 1; Tryptophan Hydroxylase 1
AA Sequence

IEDNKENKDHSLERGRASLIFSLKNEVGGLIKALKIFQEKHVNLLHIESRKSKRRNSEFEIFVDCDINREQLNDIFHLLKSHTNVLSVNLPDNFTLKEDGMETVPWFPKKISDLDHCANRVLMYGSELDADHPGFKDNVYRKRRKYFADLAMNYKHGDPIPKVEFTEEEIKTWGTVFQELNKLYPTHACREYLKNLPLLSKYCGYREDNIPQLEDVSNFLKERTGFSIRPVAGYLSPRDFLSGLAFRVFHCTQYVRHSSDPFYTPEPDTCHELLGHVPLLAEPSFAQFSQEIGLASLGASEEAVQKLATCYFFTVEFGLCKQDGQLRVFGAGLLSSISELKHALSGHAKVKPFDPKITCKQECLITTFQDVYFVSESFEDAKEKMREFTKTIKRPFGVKYNPYTRSIQILKDTKSITSAMNELQHDLDVVSDALAKVSRKPSI

Predicted Molecular Mass
52.7 kDa
Molecular Weight

Approximately 48 kDa, based on SDS-PAGE under reducing conditions.

Purity

≥ 95%, as determined by reducing SDS-PAGE.

Appearance

Solution

Formulation

Supplied as a 0.22 μm filtered solution of 20 mM Tris, 200 mM NaCl, 10% glycerol, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

N/A.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. 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

Tryptophan Hydroxylase 1/TPH-1 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:
Tryptophan Hydroxylase 1/TPH-1 Protein, Human (His)
Cat. No.:
HY-P73566
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