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Anti-Catechol O-methyltransferase/COMT Antibody

品牌
Sigma-Aldrich
货号
AB5873-I
规格纯度
from rabbit, purified by affinity chromatography
参考价格
5352.52 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

一般描述

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.

特异性

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).

免疫原

KLH-conjugated linear peptide corresponding to an extracellular domain sequence of human catechol O-methyltransferase.
Epitope: Extracellular domain.

应用

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.
Research Category
Neuroscience
Research Sub Category
Neurotransmitters & Receptors
This Anti-Catechol O-methyltransferase Antibody is validated for use in Western Blotting, Immunohistochemistry for the detection of COMT.

质量

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.

目标描述

~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.

联系

Replaces: AB5873

外形

Affinity purified.
Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

储存及稳定性

Stable for 1 year at 2-8°C from date of receipt.

其他说明

Concentration: Please refer to lot specific datasheet.

免责声明

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.

基本信息

eCl@ss32160702

产品性质

生物来源rabbit
质量水平100
抗体形式affinity isolated antibody
antibody product typeprimary antibodies
克隆polyclonal
纯化方式affinity chromatography
species reactivityhuman
species reactivity (predicted by homology)rhesus macaque (based on 100% sequence homology), horse (based on 100% sequence homology), bovine (based on 100% sequence homology), porcine (based on 100% sequence homology)
technique(s)immunohistochemistry: suitable
western blot: suitable
NCBI登记号NP_000745
UniProt登记号P21964

安全信息

储存分类代码12 - Non Combustible Liquids
WGKWGK 1
闪点(F)Not applicable
闪点(C)Not applicable

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