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>Crystallization and preliminary X-ray analysis of SNR 141--An N-terminal fragment of staphylococcal nuclease R
Crystallization and preliminary X-ray analysis of SNR 141--An N-terminal fragment of staphylococcal nuclease R
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摘要
STAPHYLOCOCCAL nuclease(SNase A,EC 3.1.4.7),which hydrolyzes the phosphodiesterbond of DNA and RNA,and releases 3’-phosphate mononucleotides and dinucleotides,con-sists of 149 amino acid residues(MW=16 807)without sulfhydryl and disulfide groups.SNase A was originally derived from Staphylococcus aureus.Later the gene of the enzyme wascloned and inserted into several expression systems.Its crystal structure was detected
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