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Q|R: quantum-based refinement.


ABSTRACT: Quantum-based refinement utilizes chemical restraints derived from quantum-chemical methods instead of the standard parameterized library-based restraints used in refinement packages. The motivation is twofold: firstly, the restraints have the potential to be more accurate, and secondly, the restraints can be more easily applied to new molecules such as drugs or novel cofactors. Here, a new project called Q|R aimed at developing quantum-based refinement of biomacromolecules is under active development by researchers at Shanghai University together with PHENIX developers. The central focus of this long-term project is to develop software that is built on top of open-source components. A development version of Q|R was used to compare quantum-based refinements with standard refinement using a small model system.

SUBMITTER: Zheng M 

PROVIDER: S-EPMC5331472 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Q|R: quantum-based refinement.

Zheng Min M   Reimers Jeffrey R JR   Waller Mark P MP   Afonine Pavel V PV  

Acta crystallographica. Section D, Structural biology 20170101 Pt 1


Quantum-based refinement utilizes chemical restraints derived from quantum-chemical methods instead of the standard parameterized library-based restraints used in refinement packages. The motivation is twofold: firstly, the restraints have the potential to be more accurate, and secondly, the restraints can be more easily applied to new molecules such as drugs or novel cofactors. Here, a new project called Q|R aimed at developing quantum-based refinement of biomacromolecules is under active devel  ...[more]

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