Using Multiscale Simulations as a Tool to Interpret Equatorial X-ray Fiber Diffraction Patterns from Skeletal Muscle.
Using Multiscale Simulations as a Tool to Interpret Equatorial X-ray Fiber Diffraction Patterns from Skeletal Muscle.
复制标题
使用多尺度模拟作为解释骨骼肌赤道X射线纤维衍射模式的工具。
DOI:
10.3390/ijms24108474
复制
发表时间:
2023-05-09
影响因子:
5.6
通讯作者:
Irving, Thomas
中科院分区:
文献类型:
--
作者:
Prodanovic, Momcilo;Wang, Yiwei;Mijailovich, Srboljub M.;Irving, Thomas
Synchrotron small-angle X-ray diffraction is the method of choice for nm-scale structural studies of striated muscle under physiological conditions and on millisecond time scales. The lack of generally applicable computational tools for modeling X-ray diffraction patterns from intact muscles has been a significant barrier to exploiting the full potential of this technique. Here, we report a novel “forward problem” approach using the spatially explicit computational simulation platform MUSICO to predict equatorial small-angle X-ray diffraction patterns and the force output simultaneously from resting and isometrically contracting rat skeletal muscle that can be compared to experimental data. The simulation generates families of thick–thin filament repeating units, each with their individually predicted occupancies of different populations of active and inactive myosin heads that can be used to generate 2D-projected electron density models based on known Protein Data Bank structures. We show how, by adjusting only a few selected parameters, we can achieve a good correspondence between experimental and predicted X-ray intensities. The developments presented here demonstrate the feasibility of combining X-ray diffraction and spatially explicit modeling to form a powerful hypothesis-generating tool that can be used to motivate experiments that can reveal emergent properties of muscle.
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DOI:
10.1073/pnas.1809540115
发表时间:
2018-08-28
影响因子:
11.1
作者:
Anderson, Robert L.;Trivedi, Darshan V.;Spudich, James A.
通讯作者:
Spudich, James A.
DOI:
10.1073/pnas.0606741103
发表时间:
2006-11-21
影响因子:
11.1
作者:
Blankenfeldt, Wulf;Thoma, Nicolas H.;Schlichting, Ilme
通讯作者:
Schlichting, Ilme
影响因子:
3.4
作者:
Geeves, Michael;Griffiths, Hugh;Smith, David
通讯作者:
Smith, David
DOI:
10.1098/rstb.2004.1566
发表时间:
2004-12-29
期刊:
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
影响因子:
--
作者:
Holmes, KC;Schröder, RR;Houdusse, A
通讯作者:
Houdusse, A
影响因子:
5
作者:
Kreutziger, Kareen L.;Piroddi, Nicoletta;Regnier, Michael
通讯作者:
Regnier, Michael