Cargando…
Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase
Until recently, the occurrence of conformational entropy in protein crystal contacts was considered to be a very unlikely event. A study based on the most accurately refined protein structures demonstrated that side-chain conformational entropy and static disorder might be common in protein crystal...
Autores principales: | , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5947717/ https://www.ncbi.nlm.nih.gov/pubmed/29765602 http://dx.doi.org/10.1107/S2052252517017833 |
_version_ | 1783322425934479360 |
---|---|
author | Dimova, Margarita Devedjiev, Yancho D. |
author_facet | Dimova, Margarita Devedjiev, Yancho D. |
author_sort | Dimova, Margarita |
collection | PubMed |
description | Until recently, the occurrence of conformational entropy in protein crystal contacts was considered to be a very unlikely event. A study based on the most accurately refined protein structures demonstrated that side-chain conformational entropy and static disorder might be common in protein crystal lattices. The present investigation uses structures refined using ensemble refinement to show that although paradoxical, conformational entropy is likely to be the major factor in the emergence and integrity of the protein condensed phase. This study reveals that the role of shape entropy and local entropic forces expands beyond the onset of crystallization. For the first time, the complete pattern of intermolecular interactions by protein atoms in crystal lattices is presented, which shows that van der Waals interactions dominate in crystal formation. |
format | Online Article Text |
id | pubmed-5947717 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-59477172018-05-15 Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase Dimova, Margarita Devedjiev, Yancho D. IUCrJ Research Papers Until recently, the occurrence of conformational entropy in protein crystal contacts was considered to be a very unlikely event. A study based on the most accurately refined protein structures demonstrated that side-chain conformational entropy and static disorder might be common in protein crystal lattices. The present investigation uses structures refined using ensemble refinement to show that although paradoxical, conformational entropy is likely to be the major factor in the emergence and integrity of the protein condensed phase. This study reveals that the role of shape entropy and local entropic forces expands beyond the onset of crystallization. For the first time, the complete pattern of intermolecular interactions by protein atoms in crystal lattices is presented, which shows that van der Waals interactions dominate in crystal formation. International Union of Crystallography 2018-01-10 /pmc/articles/PMC5947717/ /pubmed/29765602 http://dx.doi.org/10.1107/S2052252517017833 Text en © Margarita Dimova et al. 2018 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/ |
spellingShingle | Research Papers Dimova, Margarita Devedjiev, Yancho D. Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title | Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title_full | Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title_fullStr | Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title_full_unstemmed | Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title_short | Protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
title_sort | protein crystal lattices are dynamic assemblies: the role of conformational entropy in the protein condensed phase |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5947717/ https://www.ncbi.nlm.nih.gov/pubmed/29765602 http://dx.doi.org/10.1107/S2052252517017833 |
work_keys_str_mv | AT dimovamargarita proteincrystallatticesaredynamicassembliestheroleofconformationalentropyintheproteincondensedphase AT devedjievyanchod proteincrystallatticesaredynamicassembliestheroleofconformationalentropyintheproteincondensedphase |