New functions for DNA modifications by TET-JBP.
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abstract
TET and JBP proteins catalyze the oxidation of methylated C bases in the mammalian genome and of the methyl group of T bases in kinetoplastid genomes, respectively. A recent study in Nature Structural & Molecular Biology suggests a new function of 5-methylcytosine oxidation in regulating RNA polymerase II elongation rate that is reminiscent of that of base J in transcription termination in Leishmania.