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6QQA

Room temperature structure of the fluorescent protein Cerulean recorded after an accumulated dose of 21 kGy

Summary for 6QQA
Entry DOI10.2210/pdb6qqa/pdb
DescriptorGreen fluorescent protein (2 entities in total)
Functional Keywordsfluorescent protein, tryptophan-based chromophore, cerulean, hydrogen atoms, room temperature
Biological sourceAequorea victoria (Jellyfish)
Total number of polymer chains1
Total formula weight26789.24
Authors
Gotthard, G.,Aumonier, S.,Royant, A. (deposition date: 2019-02-18, release date: 2019-06-19, Last modification date: 2024-10-16)
Primary citationGotthard, G.,Aumonier, S.,De Sanctis, D.,Leonard, G.,von Stetten, D.,Royant, A.
Specific radiation damage is a lesser concern at room temperature.
Iucrj, 6:665-680, 2019
Cited by
PubMed Abstract: Carrying out macromolecular crystallography (MX) experiments at cryogenic temperatures significantly slows the rate of global radiation damage, thus facilitating the solution of high-resolution crystal structures of macromolecules. However, cryo-MX experiments suffer from the early onset of so-called specific radiation damage that affects certain amino-acid residues and, in particular, the active sites of many proteins. Here, a series of MX experiments are described which suggest that specific and global radiation damage are much less decoupled at room temperature than they are at cryogenic temperatures. The results reported here demonstrate the interest in reviving the practice of collecting MX diffraction data at room temperature and allow structural biologists to favourably envisage the development of time-resolved MX experiments at synchrotron sources.
PubMed: 31316810
DOI: 10.1107/S205225251900616X
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (1.66 Å)
Structure validation

238268

数据于2025-07-02公开中

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