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Butyrylcholinesterase (BChE) from equine serum has been used:
- to determine the inhibitory concentration of bupivacaine on butyrylcholinesterase
- in acetylcholinesterase (AChE)/BChE activity assay to determine the inhibitory activity of benzothiazole-piperazine compounds
Selective inhibition of BChE activity can be used in the detection of organophosphates. Its use in the treatment of organophosphate toxicity shows promise. There is a correlation between the level of BChE in human blood and degree of protection against potentially toxic nerve agents. There has also been interest in the roles of cholinesterases with regard to Alzheimer′s disease. Investigations into selective inhibitors may provide a clearer picture of the physiological role of BChE in both healthy and diseased individuals. The enzyme has been used to test bupivacaine as an inhibitor of butyrylcholinesterase during acetylcholinesterase assay using cerebrospinal fluid.
生物化学的／生理学的作用
Butyrylcholinesterase (BChE) is a serine hydrolase that is structurally similar to acetylcholinesterase (AChE), but differs in substrate specificities and inhibitor sensitivities. BChE can, unlike AChE, efficiently hydrolyze larger esters of choline such as butyrylcholine and benzoylcholine. The enzyme is a tetrameric glycoprotein with four equal subunits (110 kDa each). The enzyme is activated by Ca2+ and Mg2+ and the activity is constant over the pH range 6.0-8.0. It is inhibited by Betaine, nicotine, organophosphates, carbamates.
単位の定義
1ユニットは、pH 8.0、37°C、1分間に、1.0 μmolのブチリルコリンをコリンと酪酸とに加水分解する酵素量です。ブチリルコリンを基質とした場合の活性は、アセチルコリンを基質とした場合の約2.5倍となります。
物理的形状
バッファ-塩を含有する高純度の凍結乾燥品
アナリシスノート
タンパク量はビウレット法で測定
シグナルワード
Danger
危険有害性情報
危険有害性の分類
Resp. Sens. 1
保管分類コード
11 - Combustible Solids
WGK
WGK 3
引火点(°F)
Not applicable
引火点(℃)
Not applicable
個人用保護具 (PPE)
Eyeshields, Gloves, type N95 (US)
適用法令
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Jan Code
C4290-100UN:
C4290-5KU:
C4290-500UN:
C4290-BULK:
C4290-VAR:
C4290-1KU:
試験成績書（COA）
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Stefano Cinti et al.
Nature protocols, 14(8), 2437-2451 (2019-07-05)
Despite substantial advances in sensing technologies, the development, preparation, and use of self-testing devices is still confined to specialist laboratories and users. Decentralized analytical devices will enormously impact daily lives, enabling people to analyze diverse clinical, environmental, and food samples
Acetylcholinesterase assay for cerebrospinal fluid using bupivacaine to inhibit butyrylcholinesterase
Kluge WH, et al.
BMC Biochemistry, 2(1), 17-17 (2001)
W H Kluge et al.
BMC biochemistry, 2, 17-17 (2002-01-22)
Most test systems for acetylcholinesterase activity (E.C.3.1.1.7.) are using toxic inhibitors (BW284c51 and iso-OMPA) to distinguish the enzyme from butyrylcholinesterase (E.C.3.1.1.8.) which occurs simultaneously in the cerebrospinal fluid. Applying Ellman's colorimetric method, we were looking for a non-toxic inhibitor to
Determination of thyroxine binding globulin.
Bergmeyer, H.U
Methods of Enzymatic Analysis, 2, 833-833 (1974)
Luisa Savini et al.
Journal of medicinal chemistry, 46(1), 1-4 (2002-12-28)
Tacrine-based AChE and BuChE inhibitors were designed by investigating the topology of the active site gorge of the two enzymes. The homobivalent ligands characterized by a nitrogen-bridged atom at the tether level could be considered among the most potent and
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