Recombinant human COMT protein
Catechol-O-methyltrasferase (COMT) is an enzyme that catalyses the transfer of the methyl group of S-adenosylmethionine (SAM) into catechol substrates such as levodopa, dopamine, epinephrine, and norepinephirine in the presence of Mg2+. COMT appears to be located in the postsynaptic neuron and plays roles in the metabolism of catechol estrogens and the inactivation of catecholamine neurotransmitters though enzymatic degradation. COMT inhibitors prevent levodopa degradation, increase its availability and are used in the treatment of patients with Parkinson's disease. Recombinant human COMT protein was expressed in E. coli and purified by using conventional chromatography techniques.
Product Specifications
Product Name Alternative
Catechol-O-methyltransferase, COMT
Expression System
E.coli
Antigen Species
Human
Tag
Non-Tagged
Applications
SDS-PAGE
Concentration
1 mg/mL (determined by Bradford assay)
Endotoxin
< 1 EU per 1ug of protein (determined by LAL method)
Purity
> 95% by SDS-PAGE
Molecular Weight
24.4 kDa (221aa) confirmed by MALDI-TOF
Additionnal Information
References & Citations
Cotton NJ., et al. (2004) J Biol Chem. 279 (22) :23710-8. ; ; Dawling S., et al. (2001) Cancer Res. 61 (18) :6716-22.;
Other References
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 1mM MgCl2, 10% glycerol
Scientific Category
Enzymes & Proteases
NCBI Accession Number
NP_000745.1
Uniprot Accession Number
P21964
Species
Human
AA Sequence
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