Theoretical study of substitution effect of the hydrogen bond stability of 9-methylguanine derivatives and 1-methylcytosine.
The substitution effect on hydrogen bond stability of the Watson-Crick type base pair between 1-methylcytosine (C) and substitution-introduced 9-methylguanine derivatives (Gx) was studied by an ab initio molecular orbital theory. Introduction of an electron-withdrawing group on the 8-position or on the exo-cyclic amino moiety enforced the base pair stability.
Kawahara
Shun-ichi
S
National Institute of Advanced Industrial Science and Technology (AIST), National Food Research Institute, Biological Function Division, Molecular Function Laboratory, Tsukuba, Ibaraki, Japan.
Sekine
Mitsuo
M
Taira
Kazunari
K
Kobayashi
Hideyuki
H
Uchimaru
Tadafumi
T
D003596:Cytosine / Q000031:analogs & derivatives* / Q000737:chemistry*; D006147:Guanine / Q000031:analogs & derivatives* / Q000737:chemistry*; D006860:Hydrogen Bonding; D013816:Thermodynamics
C031532:1-methylcytosine; C116701:9-methylguanine; D006147:Guanine; D003596:Cytosine