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Báo cáo khoa học: Classification of ATP-dependent proteases Lon and comparison of the active sites of their proteolytic domains

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:0

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ATP-dependent Lon proteases belong to the superfamily of AAA + proteins. Until recently, the identity of the residues involved in their proteolytic active sites was not elucidated. However, the putative catalytic Ser–Lys dyad was recently suggested through sequence comparison of more than 100 Lon proteases from various sources. The presence of the catalytic dyadwas experimentally confirmedby site-directed mutagenesis of theEscherichia coliLon protease and by determination of the crystal structure of its proteolytic domain. Furthermore, this extensive sequence analysis allowed the definition of two subfamilies of Lon proteases, LonA and LonB, based on the consensus sequences in the active sites of their proteolytic domains. ...

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Nội dung Text: Báo cáo khoa học: Classification of ATP-dependent proteases Lon and comparison of the active sites of their proteolytic domains

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