Pressure-Enhanced Enzymes Application Notes

Pressure-Enhanced Enzymes Application Notes

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Introduction
Pressure Cycling Technology (PCT) has been proven to accelerate enzymatic protein digestion. The positive effect of PCT on trypsin digestion is well established [1-4] for improved sequence coverage, higher recovery and significantly reduced digestion times. Not only has PCT been shown to accelerate and improve digestion in solution, but it can also accelerate in-gel trypsin digestion [4, 5]. Additionally, the enhancing effect of PCT on the activity of several other enzymes, including Proteinase K, PNGase F, chymotrypsin and lysozyme has been reported [6-10].

Introduction
Pressure Cycling Technology (PCT) has been proven to accelerate enzymatic protein digestion. The positive effect of PCT on trypsin digestion has been demonstrated by several laboratories [1, 2, 3] who have reported improved sequence coverage, higher recovery and significantly reduced digestion times when the trypsin reactions were carried out under pressure. Not only has PCT been shown to accelerate and improve digestion in solution, but it can also accelerate in-gel trypsin digestion [4, 5]. Additionally, the enhancing effect of PCT on the activity of several other enzymes, including Proteinase K, PNGase F, Lys-C and lysozyme has been reported [6, 7, 8, 9].

Introduction
Pressure cycling technology (PCT) has been proven to accelerate enzymatic protein digestion. For example, the effect of PCT on trypsin digestion has been demonstrated by several laboratories. They report that digestion times can be reduced from hours to minutes [1, 2]. Not only has PCT been shown to accelerate and improve protein digestion in solution, but it also can accelerate the digestion by trypsin of proteins in polyacrylamide gel slices [3]. Additionally, the enhancing effect of PCT on the activity of several other enzymes, including Proteinase K, PNGase F, and Lys-C, has been reported [4, 5, 6].

Introduction
The positive effect of Pressure Cycling Technology (PCT) on trypsin digestion is well established [1-6], and has been shown to result in improved sequence coverage, higher recovery and significantly reduced digestion times. Additionally, the enhancing effect of PCT on the activity of several other enzymes, including Lys-C, Proteinase K, PNGase F, chymotrypsin and lysozyme has been reported [7-13].

Introduction
Pressure Cycling Technology (PCT) has been proven to accelerate enzymatic protein digestion. The positive effect of PCT on trypsin digestion is well established for improved sequence coverage, higher recovery and significantly reduced digestion times [1-5]. Additionally, the enhancing effects of PCT on the activity of other enzymes, including Proteinase K, PNGase F, Glu-C, Lys-C, and lysozyme have been reported [6-12].