BEC hydrochloride|cas:222638-67-7|西域试剂

BEC hydrochloride,98.0%

产品编号：Bellancom-19548A| CAS NO：222638-67-7| 分子式：C₅H₁₃BClNO₄S| 分子量：229.49

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货号	价格	库存与货期
Bellancom-19548A	￥950.00	杭州北京（现货）
Bellancom-19548A	￥1650.00	杭州北京（现货）
Bellancom-19548A	￥3200.00	杭州北京（现货）
Bellancom-19548A	￥5800.00	杭州北京（现货）

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BEC hydrochloride

产品介绍

BEC hydrochloride 是一种缓慢结合的竞争性精氨酸酶 II ( Arginase II) 抑制剂，在 pH 7.5 和 pH 9.5 时 K_i 值分别为 0.31 μM 和 30 nM。

生物活性

BEC hydrochloride is a slow-binding and competitive Arginase II inhibitor with K_i of 0.31 μM and 30 nM at pH 7.5 and pH 9.5, respectively.

体外研究

The X-ray crystal structure of the arginase-BEC complex has been determined at 2.3 Å resolution from crystals perfectly twinned by hemihedry. The structure of the complex reveals that the boronic acid moiety undergoes nucleophilic attack by metal-bridging hydroxide ion to yield a tetrahedral boronate anion that bridges the binuclear manganese cluster, thereby mimicking the tetrahedral intermediate (and its flanking transition states) in the arginine hydrolysis reaction.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究

Administration of the arginase inhibitor BEC decreases arginase activity and causes alterations in NO homeostasis, which are reflected by increases in S-nitrosylated and nitrated proteins in the lungs from inflamed mice. BEC enhances perivascular and peribronchiolar lung inflammation, mucus metaplasia, NF-κB DNA binding, and mRNA expression of the NF-κB-driven chemokine genes CCL20 and KC, and leads to further increases in airways hyperresponsiveness.

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:	C57BL/6J wild-type mice, mice deficient in arginase 2 (Arg2^-/-), mice deficient in both arginase 1 and 2 (Arg1^-/-Arg2^-/-), and mice deficient in NOX2 (NOX2^-/-
Dosage:	20 mg/kg.
Administration:	I.V., in 0.9% saline, 1 hour before the injection of LPS.
Result:	BEC robustly reduced VEGF expression in neuroglia (72% reduction) and macrophage/microglia (87% reduction).

体内研究

西域 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model:	C57BL/6J wild-type mice, mice deficient in arginase 2 (Arg2^-/-), mice deficient in both arginase 1 and 2 (Arg1^-/-Arg2^-/-), and mice deficient in NOX2 (NOX2^-/-
Dosage:	20 mg/kg.
Administration:	I.V., in 0.9% saline, 1 hour before the injection of LPS.
Result:	BEC robustly reduced VEGF expression in neuroglia (72% reduction) and macrophage/microglia (87% reduction).

性状

Solid

溶解性数据

In Vitro:

H₂O : 125 mg/mL (544.69 mM; Need ultrasonic)

DMSO : 50 mg/mL (217.87 mM; Need ultrasonic)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	4.3575 mL	21.7874 mL	43.5749 mL
5 mM	0.8715 mL	4.3575 mL	8.7150 mL
10 mM	0.4357 mL	2.1787 mL	4.3575 mL

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (stored under nitrogen)。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液，再依次添加助溶剂：

——为保证实验结果的可靠性，澄清的储备液可以根据储存条件，适当保存；体内实验的工作液，建议您现用现配，当天使用；以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比；如在配制过程中出现沉淀、析出现象，可以通过加热和/或超声的方式助溶

1.

请依序添加每种溶剂： PBS
Solubility: 140 mg/mL (610.05 mM); Clear solution; Need ultrasonic
2.

请依序添加每种溶剂： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 2.5 mg/mL (10.89 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (10.89 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。
将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液
3.

请依序添加每种溶剂： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.5 mg/mL (10.89 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (10.89 mM，饱和度未知) 的澄清溶液。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。
将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
4.

请依序添加每种溶剂： 10% DMSO 90% corn oil
Solubility: ≥ 2.5 mg/mL (10.89 mM); Clear solution

此方案可获得 ≥ 2.5 mg/mL (10.89 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。
以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。