Structure and-function of bovine pancreatic deoxyribonuclease I

被引:17
作者
Chen, Wei-Jung
Liao, Ta-Hsiu
机构
[1] Natl Ilan Univ, Coll Bioresources, Inst Biotechnol, Ilan 260, Taiwan
[2] Natl Taiwan Univ, Coll Med, Inst Biochem & Mol Biol, Ilan 260, Taiwan
关键词
deoxyribonuclease; calcium; disulfide; protein folding; chemical modification; site-directed mutagenesis; enzyme mechanism;
D O I
10.2174/092986606776819475
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Bovine pancreatic deoxyribonuclehse I (bpDNase), the first DNase discovered, is the best characterized among various types of DNase, A catalytic mechanism has been suggested based on the X-ray structure of the bpDNase-octamer complex. In this review, we will focus on three aspects: 1) the distinctive functions of the two structural calcium atoms; 2) the biological functions of the two disulfides; and 3) the involvement of the N- and C-terminal fragments in the enzyme folding for activity.
引用
收藏
页码:447 / 453
页数:7
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