Figure 1
The human rDNA promoter region. (a) Genotyping of rDNA promoter region. The sequence of the rDNA promoter as shown was identical for all prostate cancer tissues and normal tissues, as well as all the cell lines. In this map, primer sequences for genotyping are indicated by the underlined regions and the primer sequences for bisulfite sequencing are indicated as dotted underlines. CpG dinucleotides are boxed with the location marked relative to the transcription start site (arrow). Discrepancies with the published DNA sequence (U13369) are marked. Nucleotides that show base substitutions as compared with the reference U13369 seqeunce are illustrated with dots above the DNA sequence. Deletions (generally a single base), relative to the reference sequence, are marked by a ‘v ‘between nucleotides. (b) Schematic representation of a single human rDNA repeat. The approximate positions relative to the transcription start site are indicated (DNA base number in kb). (c) Vertical lines indicate locations of CpG dinucleotides on the 45S rRNA promoter relative to the transcription start site, indicated with the dashed curved arrow, with primer pairs used for bisulfite mapping marked by inward pointing arrows.
