The crystal structure of a K+ complex of valinomycin.
The crystal structure of a K+ complex of valinomycin.
复制标题
缬氨霉素 K 复合物的晶体结构。
作者：
K. Neupert;M. Dobler
环十二缩酚肽抗生素缬氨霉素的KI 3/KI 5复合物在空间群C2221中结晶，a = 13.34，B = 24.65，c = 46.96 A。晶体结构研究表明，K+以六个羰基氧原子配位，形成八面体结构。大环骨架采用非晶体学S6对称性。酰胺氮原子和羰基氧原子组成的六个氢键在分子周围形成一个带。
A KI3/KI5 complex of the cyclododecadepsipeptide antibiotic valinomycin crystallizes in the space group C2221, a = 13.34, b = 24.65, c = 46.96 A. The crystal structure investigation shows that K+ is coordinated octahedrally by six carbonyl oxygen atoms. The macrocyclic ring skeleton adopts non-crystallographic S6 symmetry. Six hydrogen bonds involving amide nitrogen atoms and carbonyl oxygen atoms form a belt around the molecule.