AcTEV™ Protease
AcTEV™ Protease
Invitrogen™

AcTEV™ Protease

AcTEV™ Protease specifically recognizes a seven amino acid sequence (Glu-Asn-Leu-Tyr-Phe-Gln-Gly, cleaving between Gln and Gly), making it useful for removingRead more
Catalog NumberQuantity
125750151000 U
1257502310,000 U
Catalog number 12575015
Price (JPY)
55,600
Each
Contact Us ›
Quantity:
1000 U
AcTEV™ Protease specifically recognizes a seven amino acid sequence (Glu-Asn-Leu-Tyr-Phe-Gln-Gly, cleaving between Gln and Gly), making it useful for removing affinity tags from fusion proteins. 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. AcTEV™ Protease features:

• Highly specific cleavage activity
• Enhanced enzyme stability for prolonged protease activity (see figure)
• Activity over a broad temperature (+4°C to 30°C) and pH (6.0 to 8.5) range
• Six-histidine sequence to facilitate its removal from the digested protein sample
• Greater than 85% single-band purity with no nonspecific protease contamination

Applications
Incubation with AcTEV™ Protease releases the protein of interest from the fusion tag. This is an effective way to remove solubility, secretion, detection, and purification tags from recombinant proteins.

Enzyme specifications
Purified from E. coli expressing the AcTEV™ Protease gene.

Unit definition
One unit of AcTEV™ Protease cleaves 85% of a 3 μg control substrate in 1 hr at 30°C.

Unit reaction conditions
50 mM Tris-HCl (pH 8.0), 0.5 mM EDTA, 1 mM DTT, 3 μg control substrate, and 1 unit enzyme in 30 μL for 1 hr at 30°C. AcTEV™ Protease is functionally tested for the absence of any nonspecific protease activity.
For Research Use Only. Not for use in diagnostic procedures.
Specifications
Compatible BufferTEV Buffer
Product TypeProtease
Quantity1000 U
Shipping ConditionDry Ice
Concentration1,000 Units
EnzymeTEV Protease
Optimal Reaction Temperature+4°C to +30°C
Product LineAcTEV
Unit SizeEach
Contents & Storage
AcTEV™ Protease is supplied with a vial of 20X TEV buffer [1 M Tris-HCl (pH 8.0), 10 mM EDTA] and a vial of 100 mM DTT.

Store at -20° C. Guaranteed stable for 1 year when properly stored.

Frequently asked questions (FAQs)

Why does AcTEV Protease require DTT?

A final concentration of 1 mM DTT is required for the AcTEV protease reaction. The DTT serves as a stabilizer of secondary structure, i.e., it ensures that the enzyme does not undergo oxidation. If you are unable to use DTT due to a column purification after digestion, you can leave it out and still see a successful AcTEV digestion, however we recommend using it.

No rigorous quantitative data for activity in the absence of DTT and EDTA has been collected in-house. Incubations using reaction buffer +/-DTT and +/- EDTA; have been performed, but the products were analyzed only at t=0 and t=2 hr at 30 degrees C. No difference in the amount of product generated +/-DTT or +/-EDTA was noticed, but it is possible that the detailed kinetics in a time course reaction may be a little different.

What is the cleavage recognition site for AcTEV Protease?

The recognition site for AcTEV Protease is ENLYFQS/G

Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

What products do you offer for enzymatic cleavage of fusion tags from recombinant proteins?

We offer the following products:

-AcTEV Protease (Cat. Nos. 12575015, 12575023)
-EKMax Enterokinase (Cat. Nos. E18001, E18002)
-SUMO Protease (Cat. No. 12588018)


Find additional tips, troubleshooting help, and resources within our Protein Purification and Isolation Support Center.

Citations & References (6)

Citations & References
Abstract
Structure and function of an irreversible agonist-ß(2) adrenoceptor complex.
Authors:Rosenbaum DM, Zhang C, Lyons JA, Holl R, Aragao D, Arlow DH, Rasmussen SG, Choi HJ, Devree BT, Sunahara RK, Chae PS, Gellman SH, Dror RO, Shaw DE, Weis WI, Caffrey M, Gmeiner P, Kobilka BK,
Journal:Nature
PubMed ID:21228876
'G-protein-coupled receptors (GPCRs) are eukaryotic integral membrane proteins that modulate biological function by initiating cellular signalling in response to chemically diverse agonists. Despite recent progress in the structural biology of GPCRs, the molecular basis for agonist binding and allosteric modulation of these proteins is poorly understood. Structural knowledge of agonist-bound ... More
Quantitative reactivity profiling predicts functional cysteines in proteomes.
Authors:Weerapana E, Wang C, Simon GM, Richter F, Khare S, Dillon MB, Bachovchin DA, Mowen K, Baker D, Cravatt BF,
Journal:Nature
PubMed ID:21085121
'Cysteine is the most intrinsically nucleophilic amino acid in proteins, where its reactivity is tuned to perform diverse biochemical functions. The absence of a consensus sequence that defines functional cysteines in proteins has hindered their discovery and characterization. Here we describe a proteomics method to profile quantitatively the intrinsic reactivity ... More
Widespread bidirectional promoters are the major source of cryptic transcripts in yeast.
Authors:Neil H, Malabat C, d'Aubenton-Carafa Y, Xu Z, Steinmetz LM, Jacquier A,
Journal:Nature
PubMed ID:19169244
'Pervasive and hidden transcription is widespread in eukaryotes, but its global level, the mechanisms from which it originates and its functional significance are unclear. Cryptic unstable transcripts (CUTs) were recently described as a principal class of RNA polymerase II transcripts in Saccharomyces cerevisiae. These transcripts are targeted for degradation immediately ... More
Non-muscle myosin IIA is a functional entry receptor for herpes simplex virus-1.
Authors:Arii J, Goto H, Suenaga T, Oyama M, Kozuka-Hata H, Imai T, Minowa A, Akashi H, Arase H, Kawaoka Y, Kawaguchi Y,
Journal:Nature
PubMed ID:20944748
Herpes simplex virus-1 (HSV-1), the prototype of the a-herpesvirus family, causes life-long infections in humans. Although generally associated with various mucocutaneous diseases, HSV-1 is also involved in lethal encephalitis. HSV-1 entry into host cells requires cellular receptors for both envelope glycoproteins B (gB) and D (gD). However, the gB receptors ... More
Hexameric assembly of the proteasomal ATPases is templated through their C termini.
Authors:Park S, Roelofs J, Kim W, Robert J, Schmidt M, Gygi SP, Finley D,
Journal:Nature
PubMed ID:19412160
Substrates of the proteasome are recognized and unfolded by the regulatory particle, and then translocated into the core particle (CP) to be degraded. A hetero-hexameric ATPase ring, containing subunits Rpt1-6, is situated within the base subassembly of the regulatory particle. The ATPase ring sits atop the CP, with the Rpt ... More