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Anti-Catechol O-methyltransferase/COMT (rabbit polyclonal)

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货号：AB5873-I

品牌：Millipore 密理博

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重要规格表

Species Reactivity Key Applications Host Format Antibody Type
H WB, IHC Rb Affinity Purified Polyclonal Antibody
Description
Catalogue Number AB5873-I
Replaces AB5873
Description Anti-Catechol O-methyltransferase/COMT Antibody
Alternate Names
  • Catechol O-methyltransferase
Background Information Catechol O-methyltransferase (EC 2.1.1.6; UniProt P21964) is encoded by the COMT gene (Gene ID 1312) in human. Catechol-O-methyltransferase initiates the metabolic breakdown of catecholamines (including the neurotransmitters dopamine, epinephrine, and norepinephrine) by catalyzing the transfer of a methyl group from S-adenosylmethionine (SAM) to catecholamines in the presence Mg++. This O-methylation results in one of the major degradative pathways of the catecholamine transmitters. In addition to endogenous substances, COMT is also important in the metabolism of catechol drugs. Two isoforms exist as a result of alternative initiation codon usage. The membrane-bound isoform or MB-COMT contains a short N-terminal cytoplasmic tail (a.a. 1-6), a transmembrane segment (a.a. 7-26), and a large C-terminal extracellular region (a.a. 27-271), while the soluble or S-COMT isoform lacks the N-terminal 50-amino acid sequence of MB-COMT. MB-COMT and S-COMT differ in their substrate affinity and capacities. Despite having a lower capacity than S-COMT, MB-COMT has around a 10-fold greater affinity for dopamine and noradrenaline, and therefore is likely to be better suited for metabolizing catecholamines at the concentrations found in brain. The influence of the Val(158)Met polymorphic form of catechol-o-methyltransferase (COMT) on brain activation and functional connectivity is the subject of numerous studies.
References
Product Information
Format Affinity Purified
Presentation Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Applications
Application This Anti-Catechol O-methyltransferase Antibody is validated for use in Western Blotting, Immunohistochemistry for the detection of COMT.
Key Applications
  • Western Blotting
  • Immunohistochemistry
Application Notes Immunohistochemistry Analysis: A 1:2,000 dilution from a representative lot detected Catechol O-methyltransferase/COMT in human prostate cancer, normal liver and kidney tissue sections.
Biological Information
Immunogen KLH-conjugated linear peptide corresponding to an extracellular domain sequence of human catechol O-methyltransferase.
Epitope Extracellular domain.
Concentration Please refer to lot specific datasheet.
Host Rabbit
Specificity This polyclonal antibody was raised against a sequence present in both the membrane-bound (MB-COMT) and the soluble (S-COMT) spliced isoforms of human catechol O-methyltransferase reported by UniProt (P21964).
Species Reactivity
  • Human
Species Reactivity Note Human. Predicted to react with Horse, Porcine, Rhesus Macaque, Bovine based on 100% sequence homology.
Antibody Type Polyclonal Antibody
Entrez Gene Number
Gene Symbol
  • COMT
Purification Method Affinity purified.
UniProt Number
Molecular Weight ~28 kDa observed. 30.04 kDa (human MB-COMT) and 24.45 kDa (human S-COMT) calculated. Uncharacterized band(s) may appear in some lysates.
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality Assurance Evaluated by Western Blotting in human fetal liver tissue lysate.

Western Blotting Analysis: 0.2 µg/mL of this antibody detected Catechol O-methyltransferase/COMT in 10 µg of human fetal liver tissue lysate.
Usage Statement
  • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Storage and Shipping Information
Storage Conditions Stable for 1 year at 2-8°C from date of receipt.
Packaging Information
Material Size 100 μg
Transport Information
Supplemental Information
Specifications

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