Dimer,Thymine-Cyclobutane
《英文msh詞典》Dimer,Thymine-Cyclobutane
[入口詞] Dimer,Thymine-Cyclobutane
[主題詞] Pyrimidine Dimers
[英文釋義] Dimers found in DNA chains damaged by ULTRAVIOLET RAYS. They consist of two adjacent PYRIMIDINE NUCLEOTIDES,usually THYMINE nucleotides,in which the pyrimidine residues are covalently joined by a cyclobutane ring. These dimers block DNA REPLICATION.