Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography
Time-resolved macromolecular crystallography unifies structure determination with chemical kinetics, since the structures of transient states and chemical and kinetic mechanisms can be determined simultaneously from the same data. To start a reaction in an enzyme, typically, an initially inactive su...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/167276 |
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| _version_ | 1832554483712786432 |
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| author | Marius Schmidt |
| author_facet | Marius Schmidt |
| author_sort | Marius Schmidt |
| collection | DOAJ |
| description | Time-resolved macromolecular crystallography unifies structure determination with chemical kinetics, since the structures of transient states and chemical and kinetic mechanisms can be determined simultaneously from the same data. To start a reaction in an enzyme, typically, an initially inactive substrate present in the crystal is activated. This has particular disadvantages that are circumvented when active substrate is directly provided by diffusion. However, then it is prohibitive to use macroscopic crystals because diffusion times become too long. With small micro- and nanocrystals diffusion times are adequately short for most enzymes and the reaction can be swiftly initiated. We demonstrate here that a time-resolved crystallographic experiment becomes feasible by mixing substrate with enzyme nanocrystals which are subsequently injected into the X-ray beam of a pulsed X-ray source. |
| format | Article |
| id | doaj-art-289a93e8d95b423c8ce72bf6838b461b |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-289a93e8d95b423c8ce72bf6838b461b2025-02-03T05:51:17ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242013-01-01201310.1155/2013/167276167276Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular CrystallographyMarius Schmidt0Physics Department, University of Wisconsin-Milwaukee, WI, USATime-resolved macromolecular crystallography unifies structure determination with chemical kinetics, since the structures of transient states and chemical and kinetic mechanisms can be determined simultaneously from the same data. To start a reaction in an enzyme, typically, an initially inactive substrate present in the crystal is activated. This has particular disadvantages that are circumvented when active substrate is directly provided by diffusion. However, then it is prohibitive to use macroscopic crystals because diffusion times become too long. With small micro- and nanocrystals diffusion times are adequately short for most enzymes and the reaction can be swiftly initiated. We demonstrate here that a time-resolved crystallographic experiment becomes feasible by mixing substrate with enzyme nanocrystals which are subsequently injected into the X-ray beam of a pulsed X-ray source.http://dx.doi.org/10.1155/2013/167276 |
| spellingShingle | Marius Schmidt Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography Advances in Condensed Matter Physics |
| title | Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography |
| title_full | Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography |
| title_fullStr | Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography |
| title_full_unstemmed | Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography |
| title_short | Mix and Inject: Reaction Initiation by Diffusion for Time-Resolved Macromolecular Crystallography |
| title_sort | mix and inject reaction initiation by diffusion for time resolved macromolecular crystallography |
| url | http://dx.doi.org/10.1155/2013/167276 |
| work_keys_str_mv | AT mariusschmidt mixandinjectreactioninitiationbydiffusionfortimeresolvedmacromolecularcrystallography |