Analysis of slip systems in protein crystals with a triclinic form using a phenomenological macro-bond method
| Autor: | Masaru Tachibana, Marina Abe, Kenichi Kojima, Chika Shigemoto, Ryo Suzuki |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Quantitative Biology::Biomolecules
Crystallographic point group Materials science Thermodynamics General Chemistry Triclinic crystal system Physics::Classical Physics Condensed Matter Physics Surface energy Physics::Geophysics Physics::Fluid Dynamics Indentation General Materials Science Dislocation Protein crystallization Burgers vector Macromolecule |
| Zdroj: | CrystEngComm. 23:3753-3760 |
| ISSN: | 1466-8033 |
| Popis: | Slip systems in triclinic hen egg-white lysozyme (Tri-HEWL) crystals, which are typical protein crystals, were identified by an indentation method. Eleven kinds of slip systems are clearly observed. These slip systems are determined by surface energy estimation using phenomenological macro-bond methods. Based on the analysis of the slip systems, it can be suggested that the active slip systems are controlled by not the Burgers vector but the slip plane with lower surface energy for crystals with complex macromolecules and lower crystallographic symmetry such as Tri-HEWL crystals. This mechanism to decide active slip systems is unique compared with the conventional crystals such as FCC metals and covalent materials. It is expected to establish a more comprehensive dislocation theory including macromolecular crystals. |
| Databáze: | OpenAIRE |
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