Steiner T, Schreurs A M, Kanters J A, Kroon J
Institut für Kristallographie, Freie Universität Berlin, Takustrasse 6, D-14195 Berlin, Germany.
Acta Crystallogr D Biol Crystallogr. 1998 Jan 1;54(Pt 1):25-31. doi: 10.1107/s0907444997007981.
The crystal structure of Tyr-Tyr-Phe dihydrate contains a hydrogen bond formed between a water molecule and the Phe side chain. The geometry is centered with a distance of 3.26 A between the water O atom and the aromatic centroid. In a database study on hydrated peptides, four related examples are found which exhibit a wide variability of hydrogen-bond geometries. The intermolecular surroundings of the water molecules are inspected, showing that they are typically involved in complex networks of conventional and non-conventional hydrogen bonds. Possible relevance for protein hydration is given.
酪氨酸 - 酪氨酸 - 苯丙氨酸二水合物的晶体结构包含一个水分子与苯丙氨酸侧链之间形成的氢键。其几何结构以水分子的氧原子与芳香环质心之间3.26埃的距离为中心。在一项关于水合肽的数据库研究中，发现了四个相关实例，它们呈现出氢键几何结构的广泛变异性。对水分子的分子间环境进行了检查，结果表明它们通常参与常规和非常规氢键的复杂网络。给出了其与蛋白质水合作用的可能相关性。
