Leucine zipper as a fine tuner for the DNA binding; Revisited with molecular dynamics simulation of the Fos-Jun bZIP complex

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作者
Choi, YH
Yang, CH
Kim, HW
Jung, S
机构
[1] Konkuk Univ, Dept Microbial Engn, Kwangjin Ku, Seoul 143701, South Korea
[2] Seoul Natl Univ, Dept Chem, Seoul 151742, South Korea
[3] Yonsei Univ, Wonju Coll Med, Dept Biochem, Wonju 220701, South Korea
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O6 [化学];
学科分类号
0703 ;
摘要
Leucine zipper dynamically tunes the degree of bifurcation of the DNA binding segments in the basic region of the Foe-Jun bZIP complex. Molecular dynamics simulation indicated that site-specific mutagenesis of conserved leucine residues inside the leucine zipper domain caused the change of dynamic behavior of the basic region, and efficient DNA binding occurs only within a certain range of distance between the two DNA binding segments in the basic region. Distribution of alpha-helices in the hinge region is also suggested to influence the bifurcation of the DNA binding segments.
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页码:1319 / 1322
页数:4
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