Familial hypertrophic cardiomyopathy related E180G mutation increases flexibility of human cardiac α-tropomyosin.
Familial hypertrophic cardiomyopathy related E180G mutation increases flexibility of human cardiac α-tropomyosin.
复制标题
家族性肥厚性心肌病相关的E180G突变增加了人类心脏α-胶质素的柔韧性。
DOI:
10.1016/j.febslet.2012.08.005
复制
发表时间:
2012-09-21
期刊:
影响因子:
3.5
通讯作者:
Chase PB
中科院分区:
文献类型:
--
作者:
Loong CK;Zhou HX;Chase PB
α-tropomyosin (αTm) is central to Ca2+-regulation of cardiac muscle contraction. The familial hypertrophic cardiomyopathy mutation αTm E180G enhances Ca2+-sensitivity in functional assays. To investigate the molecular basis, we imaged single molecules of human cardiac αTm E180G by direct probe atomic force microscopy. Analyses of tangent angles along molecular contours yielded persistence length corresponding to ~35% increase in flexibility compared to wild-type. Increased flexibility of the mutant was confirmed by fitting end-to-end length distributions to the worm-like chain model. This marked increase in flexibility can significantly impact systolic and possibly diastolic phases of cardiac contraction, ultimately leading to hypertrophy.
登录
查看更多内容
影响因子:
4
作者:
Loong CK;Badr MA;Chase PB
通讯作者:
Chase PB
DOI:
10.1016/j.bbrc.2011.01.112
发表时间:
2011-03-04
影响因子:
3.1
作者:
Mathur, Mohit C.;Chase, P. Bryant;Chalovich, Joseph M.
通讯作者:
Chalovich, Joseph M.
影响因子:
3.8
作者:
Chase, PB;Macpherson, JM;Daniel, TL
通讯作者:
Daniel, TL
DOI:
10.1111/j.1432-1033.2004.04351.x
发表时间:
2004-10-01
期刊:
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子:
--
作者:
Hilario, E;da Silva, SLF;Bertolini, MC
通讯作者:
Bertolini, MC
影响因子:
3.4
作者:
Daniel, TL;Trimble, AC;Chase, PB
通讯作者:
Chase, PB