title: Dictyostelium ribosomal RNA is processed during transcription.
abstract: Electron microscopy of transcriptionally active Dictyostelium ribosomal RNA genes reveals that ribosomal RNA processing occurs during transcription: each transcription unit is composed of two tandem ribonuclear protein matrices. This is the first example among eucaryotes of simultaneous transcription and processing of rRNA.
mesh_terms: D004023:Dictyostelium / Q000235:genetics* / Q000378:metabolism; D008854:Microscopy, Electron; D009694:Nucleic Acid Precursors / Q000378:metabolism*; D012335:RNA, Ribosomal / Q000096:biosynthesis* / Q000235:genetics; D012261:Ribonucleoproteins / Q000378:metabolism; D014158:Transcription, Genetic
chemical_list: D009694:Nucleic Acid Precursors; D012335:RNA, Ribosomal; D012261:Ribonucleoproteins