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Tobacco Etch Virus (TEV) protease is a highly site-specific cysteine protease commonly used to remove affinity tags from fusion proteins. It recognizes the sequence Glu-Asn-Leu-Tyr-Phe-Gln↓Gly/Ser (ENLYFQ↓G/S), with cleavage occurring between the Gln and Gly or Ser residue. The most frequently used recognition site is ENLYFQG.
The optimal cleavage temperature is 30 °C, though conditions such as enzyme amount, incubation time, and temperature may require optimization for different substrates. TEV protease includes an N-terminal 6×His tag, allowing for convenient removal after digestion via Ni²⁺ affinity chromatography.
The recombinant enzyme consists of 231 amino acids, has a molecular mass of approximately 28.4 kDa, and is fully biologically active following purification.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1000 U | $136 | 7-10 days | 7-10 days | |
| 10000 U | $560 | 7-10 days | 7-10 days |
| Biological Activity | 10 IU/μl. Unit Definition: One unit of TEV protease cleaves
> 85% of 3 μg of control substrate in 1 hour at pH 8.0 at 30°C. |
| Description | Tobacco Etch Virus (TEV) protease is a highly site-specific cysteine protease commonly used to remove affinity tags from fusion proteins. It recognizes the sequence Glu-Asn-Leu-Tyr-Phe-Gln↓Gly/Ser (ENLYFQ↓G/S), with cleavage occurring between the Gln and Gly or Ser residue. The most frequently used recognition site is ENLYFQG.
The optimal cleavage temperature is 30 °C, though conditions such as enzyme amount, incubation time, and temperature may require optimization for different substrates. TEV protease includes an N-terminal 6×His tag, allowing for convenient removal after digestion via Ni²⁺ affinity chromatography.
The recombinant enzyme consists of 231 amino acids, has a molecular mass of approximately 28.4 kDa, and is fully biologically active following purification. |
| Tag | His |
| Synonyms | TEV,rTEV,P1 protease |
| Protein Purity | > 95% as determined by SDS-PAGE |
| Molecular Weight | 28.4 kDa (Reducing conditions) |
| Formulation | Sterile liquid solution contains 50mM Tris, 5mM DTT, 50% glycerol, pH7.5. |
| Stability & Storage | Recombinant Tobacco Etch Virus Protease (rTEV) remains stable up to 1 year at -20°C from date of receipt. Please avoid freeze-thaw cycles. |
| Shipping | Shipping with blue ice. |
| Research Background | Tobacco Etch Virus (TEV) protease is a highly site-specific cysteine protease commonly used to remove affinity tags from fusion proteins. It recognizes the sequence Glu-Asn-Leu-Tyr-Phe-Gln↓Gly/Ser (ENLYFQ↓G/S), with cleavage occurring between the Gln and Gly or Ser residue. The most frequently used recognition site is ENLYFQG.
The optimal cleavage temperature is 30 °C, though conditions such as enzyme amount, incubation time, and temperature may require optimization for different substrates. |
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