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Encompassing Amino Acids: 105-420
Applications: Useful for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.
Assay Conditions: Reaction wasperformed at room temperature in assaybuffer containing 50 mM MOPS, pH 7.0,60 µM tryptophan, 100 mM ammoniumsulfate, 100 µM ferrous ammonium sulfate,0.5 mM TCEP, 0.3 mM 6-methyltetrahydropterin, 0.05 mg/ml catalase, 1mM DTT and TPH1. Fluorescence signalwas measured at Em360nm/Ex300nm.
Description: Human tryptophan 5-hydroxylase 1 (TPH1) also known asTRPH, GenBank Accession No.NM_004179, a.a. 105-420 with an N-terminalHis-tag, MW = 37 kDa, expressedin an E. coli cell expression system.
Format: Aqueous buffer solution
Formulation: 40 mM Tris-HCl, pH 8.0,110 mM NaCl, 2.2 mM KCl, 0.04%Tween-20, 20% glycerol, 3 mM DTT and170 mM imidazole.
Genbank: NM_004179
Storage Stability: At least 6 months at -80°C.
Tags: N-terminal His-tag
Uniprot: P17752
Warnings: Avoidfreeze/thaw cycles. Storing dilutedenzyme is not recommended, ifnecessary, use carrier protein (BSA 0.1- 0.5%).
Biosafety Level: Not applicable (BSL-1)
References: 1. Cote, F., et al., Proc. Nat. Acad. Sci. USA. 2003; 100(23): 13525-13530.
2. Walther, D.J., et al., Science. 2003; 299: 76.