嘧啶二聚体 pyrimidine dimer,通常是指环丁烷型嘧啶二聚体。通过紫外线照射,DNA或RNA上相邻的嘧啶以共价键相互结合形成的结构,为紫外线的生物学作用为主要原因。通过光解酶的催化作用,吸收光后再恢复为单体。 News
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The dimer units are arranged in a nearly orthogonally tilted structure to form a zig-zag lattice. This structure is called a κ-type structure and various superconductors with relatively high Tc have this structure. Since one electron is removed from two BETS molecules, namely one dimer, to ...