Catalytic mechanism 촉매 메커니즘 (한글번역)
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- 2011.04.25
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- 2011.04
- 3페이지/ MS 워드
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This is a research paper which is about a Catalylic mechanism research : How Catalysis occurs...
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Catalytic mechanism (serine protease)
The main player in the catalytic mechanism in the chymotrypsin and subtillisin clan enzymes mentioned above is the catalytic triad. The triad is located in the active site of the enzyme, where catalysis occurs, and is preserved in all serine protease enzymes. The triad is a coordinated structure consisting of three essential amino acids: histidine (His 57), serine (Ser 195) (hence the name "serine protease") and aspartic acid (Asp 102). Located very near one another near the heart of the enzyme, these three key amino acids each play an essential role in the cleaving ability of the proteases.
In the event of catalysis, an ordered mechanism occurs in which several intermediates are generated. The catalysis of the peptide cleavage can be seen as a ping-pong catalysis, in which a substrate binds (in this case, the polypeptide being cleaved), a product is released (the N-terminus "half" of the peptide),
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