TEV Protease (His-tag)是一种在大肠杆菌中重组表达的带His标签 (6X His tag)的烟草蚀纹病毒 (Tobacco Etch Virus, TEV)的半胱氨酸蛋白酶，能特异性地识别七肽序列Glu-Asn-Leu-Tyr-Phe-Gln-Gly/Ser，并在Gln和Gly/Ser氨基酸残基之间进行酶切，常用于去除融合蛋白的Glutathione S-transferase (GST)、His或者其它标签的蛋白酶。 建议把GST或His等标签设计在融合蛋白的N端，并在GST或His等标签与目的蛋白之间设计加入TEV Protease专一性识别与酶切的上述七肽 …

AcTEV Protease is an improved version of Tobacco Etch Virus (TEV) protease that is highly site-specific, highly active, and significantly more stable than native TEV protease, resulting in enhanced long-term activity.

tev酶具有很强的位点特异性，能够识别exxyxq(g/s)的七氨基酸序列，最常用的是enlyfqg，其切割位点 在谷氨酰胺和甘氨酸或丝氨酸之间。 蛋白酶在G/S（或P1）位点切割多种氨基酸序列，为切割后的融合部分提供一个想要的N端氨基酸。

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rTEV是一种用来切除融合蛋白上亲和标签的常用工具酶，具有很强的位点特异性，严格识别七氨基酸序列EXXYXQ↓ (G/S)，切割位点在谷氨酰胺和甘氨酸/丝氨酸之间。 普遍应用的七氨基酸序列为：Glu-Asn-Leu-Tyr-Phe-Gln↓-Gly。 rTEV在pH 7.0，30℃时可达到最佳活性，但在pH 6.0-8.5和温度4-30℃的广泛范围内皆有活性（见表1），使得反应条件的选择可根据目的蛋白的情况而灵活变动。 另外rTEV切割后也能利用其N端的6×His标签，通过Ni-NTA树脂去除，以达到纯化目的蛋 …

actev™ 蛋白酶是改进版本的烟草蚀刻病毒 (tev) 蛋白酶，具有高度位点特异性、高度活性且显著比天然 tev 蛋白酶更稳定，从而增强了长期活性。actev™ 蛋白酶的特点： •高度特异性切割活性 • 增强酶稳定性，从而增强长期蛋白酶活性（参见图）

The thermal expansion valve (TEV or TXV), as shown in picture below, it’s used for refrigerant flow control and operates at varying pressures resulting from varying temperatures. This valve maintains constant superheat in the ac evaporator .

TEV Protease is a cysteine protease that recognizes the sequence Glu-Asn-Leu-Tyr-Phe-Gln- (Gly/Ser) and cleaves between the Gln and Gly/Ser residues.

An improved version of Tobacco Etch Virus (TEV) AcTEV™ Protease is highly site-specific, highly active and significantly more stable than native TEV protease, resulting in enhanced long-term activity. Highly specific cleavage activity; Enhanced enzyme stability for …

A thermal expansion valve or thermostatic expansion valve (often abbreviated as TEV, TXV, or TX valve) is a component in vapor-compression refrigeration and air conditioning systems that controls the amount of refrigerant released into the evaporator and is intended to regulate the superheat of the refrigerant that flows out of the evaporator ...