Quintets of uracil and thymine: a novel structure of nucleobase self-assembly studied by electrospray ionization mass spectrometry.
ESI-MS and molecular dynamic calculations reveal that in the presence of K(+), Rb(+) and Cs(+), uracil, thymine and their homologues form self-assembled quintet structures that are stabilized by hydrogen bonding and ion dipole interactions.
Qiu
Bo
B
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
Liu
Jia
J
Qin
Zhen
Z
Wang
Guanbo
G
Luo
Hai
H
D002586:Cesium / Q000737:chemistry; D006860:Hydrogen Bonding; D007477:Ions / Q000737:chemistry; D008672:Metals, Alkali / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D011188:Potassium / Q000737:chemistry; D012413:Rubidium / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013941:Thymine / Q000737:chemistry*; D014498:Uracil / Q000737:chemistry*
D007477:Ions; D008672:Metals, Alkali; D002586:Cesium; D014498:Uracil; D012413:Rubidium; D013941:Thymine; D011188:Potassium