COMT recombinant protein

COMT, 51-271aa, Human, E Coli

Cat. Num. AAA203262

• Gene Names: COMT; HEL-S-98n
• Applications: SDS-Page
• Purity: > 95% by SDS-PAGE
• Synonyms: COMT; 51-271aa; Human; E Coli; Catechol-O-methyltransferase; COMT recombinant protein

• Host: E Coli
• Purity/Purification: > 95% by SDS-PAGE
• Form/Format: Liquid. In 20 mM Tris-HCl Buffer (pH 8.0) containing 1 mM MgCl2, 10% glycerol
• Concentration: 1 mg/ml (determined by Bradford assay) (varies by lot)
• Sequence: MGDTKEQRIL NHVLQHAEPG NAQSVLEAID TYCEQKEWAM NVGDKKGKIV DAVIQEHQPS VLLELGAYCG YSAVRMARLL SPGARLITIE INPDCAAITQ RMVDFAGVKD KVTLVVGASQ DIIPQLKKKY DVDTLDMVFL DHWKDRYLPD TLLLEECGLL RKGTVLLADN VICPGAPDFL AHVRGSSCFE CTHYQSFLEY REVVDGLEKA IYKGPGSEAG P
• Sequence Length: 271

• Applicable Applications for COMT recombinant protein: SDS-PAGE
• Antigen Species: Human
• Endotoxin Level: < 1.0 EU per 1 microgram of protein (determined by LAL method)
• Preparation and Storage: Can be stored at 4 degree C short term (1-2 weeks).; For long term storage, aliquot and store at -20 degree C or -70 degree C.; Avoid repeated freezing and thawing cycles.

SDS-Page

Related Product Information for COMT recombinant 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 Categories/Family for COMT recombinant protein

Enzymes & Proteases

References

Cotton NJ., et al. (2004) J Biol Chem. 279 (22):23710-8. ; Dawling S., et al. (2001) Cancer Res. 61 (18):6716-22.;

NCBI and Uniprot Product Information

• NCBI GI #: 4502969
• NCBI GeneID: 1312
• NCBI Accession #: NP_000745
• NCBI GenBank Nucleotide #: NM_000754.3
• UniProt Accession #: P21964; Q6IB07; Q6ICE6; Q9BWC7; A8MPV9
• Molecular Weight: 24.4 kDa (221 aa), confirmed by MALDI-TOF.
• NCBI Official Full Name: catechol O-methyltransferase isoform MB-COMT
• NCBI Official Synonym Full Names: catechol-O-methyltransferase
• NCBI Official Symbol: COMT
• NCBI Official Synonym Symbols: HEL-S-98n
• NCBI Protein Information: catechol O-methyltransferase
• UniProt Protein Name: Catechol O-methyltransferase
• Protein Family: Catechol O-methyltransferase
• UniProt Gene Name: COMT

NCBI Description

Catechol-O-methyltransferase catalyzes the transfer of a methyl group from S-adenosylmethionine to catecholamines, including the neurotransmitters dopamine, epinephrine, and norepinephrine. This O-methylation results in one of the major degradative pathways of the catecholamine transmitters. In addition to its role in the metabolism of endogenous substances, COMT is important in the metabolism of catechol drugs used in the treatment of hypertension, asthma, and Parkinson disease. COMT is found in two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). The differences between S-COMT and MB-COMT reside within the N-termini. Several transcript variants are formed through the use of alternative translation initiation sites and promoters. [provided by RefSeq, Sep 2008]

Uniprot Description

Catalyzes the O-methylation, and thereby the inactivation, of catecholamine neurotransmitters and catechol hormones. Also shortens the biological half-lives of certain neuroactive drugs, like L-DOPA, alpha-methyl DOPA and isoproterenol.