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Pressure-induced structural changes in wet vitamin B12
被引:21
|作者:
Fabbiani, Francesca P. A.
[1
]
Buth, Gernot
[2
]
Dittrich, Birger
[3
]
Sowa, Heidrun
[1
]
机构:
[1] Univ Gottingen, Abt Kristallog, GZG, D-37077 Gottingen, Germany
[2] Karlsruhe Inst Technol, Inst Synchrotronstrahlung ISS, D-76344 Eggenstein Leopoldshafen, Germany
[3] Univ Gottingen, Inst Anorgan Chem, D-37077 Gottingen, Germany
来源:
关键词:
CRYSTAL-STRUCTURE;
STRUCTURE VALIDATION;
CORRIN RING;
PROTEIN;
CRYSTALLOGRAPHY;
B-12;
DENATURATION;
REFINEMENT;
DEPENDENCE;
MODEL;
D O I:
10.1039/c003378b
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
The effects of pressure on the structure of cyanocobalamin (vitamin B12) have been investigated by compressing a single crystal grown from water together with its mother liquor to 1.0 GPa. The structure of a crystal grown from water in situ in a capillary has also been re-determined at room temperature and pressure. A conformational rearrangement of selected amide side chains, reduced displacement parameters and remarkable solvent ordering have been observed at high pressure.
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页码:2541 / 2550
页数:10
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