Journal
ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS
Volume 64, Issue -, Pages 378-381Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S1744309108008294
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A preliminary neutron crystallographic study of the sweet protein thaumatin is presented. Large hydrogenated crystals were prepared in deuterated crystallization buffer using the gel-acupuncture method. Data were collected to a resolution of 2 A on the LADI-III diffractometer at the Institut Laue Langevin ( ILL). The results demonstrate the feasibility of a full neutron crystallographic analysis of this structure aimed at providing relevant information on the location of H atoms, the distribution of charge on the protein surface and localized water in the structure. This information will be of interest for understanding the specificity of thaumatin-receptor interactions and will contribute to further understanding of the molecular mechanisms underlying the perception of taste.
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