Implementation of the riding hydrogen model in CCTBX to support the next generation of X-ray and neutron joint refinement in Phenix.
Implementation of the riding hydrogen model in CCTBX to support the next generation of X-ray and neutron joint refinement in Phenix.
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DOI:
10.1016/bs.mie.2020.01.007
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发表时间:
2020
影响因子:
--
通讯作者:
Adams PD
中科院分区:
文献类型:
--
作者:
Liebschner D;Afonine PV;Urzhumtsev AG;Adams PD
A fundamental prerequisite for implementing new procedures of atomic model refinement against neutron diffraction data is the efficient handling of hydrogen atoms. The riding hydrogen model, which constrains hydrogen atom parameters to those of the non-hydrogen atoms, is a plausible parameterization for refinements. This work describes the implementation of the riding hydrogen model in the Computational Crystallography Toolbox and in Phenix. Riding hydrogen atoms can be found in several different configurations that are characterized by specific geometries. For each configuration, the hydrogen atom parameterization and the expressions for the gradients of refinement target function with respect to non-hydrogen parameters are described.
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DOI:
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发表时间:
2009-06
影响因子:
2.2
作者:
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Methods in molecular biology (Clifton, N.J.)
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影响因子:
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