Developmental regulation of two 5S ribosomal RNA genes.
The developmental regulation of two kinds of Xenopus 5S RNA genes (oocyte and somatic types) can be explained by differences in the stability of protein-protein and protein-DNA interactions in a transcription complex that directs transcription initiation by RNA polymerase III. Dissociation of transcription factors from oocyte 5S RNA genes during development allows them to be repressed by chromatin assembly. In the same cells, somatic 5S RNA genes remain active because their transcription complexes are stable.
Department of Embryology, Carnegie Institution of Washington, Baltimore, MD 21210.
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Wolffe
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Brown
D000818:Animals; D002454:Cell Differentiation; D002843:Chromatin; D004247:DNA / Q000502:physiology; D004261:DNA Replication; D005786:Gene Expression Regulation; D005796:Genes; D009865:Oocytes / Q000166:cytology / Q000648:ultrastructure; D012335:RNA, Ribosomal / Q000235:genetics*; D012341:RNA, Ribosomal, 5S / Q000235:genetics*; D035582:Transcription Factor TFIIIA; D035361:Transcription Factor TFIIIB; D014157:Transcription Factors / Q000235:genetics; D019474:Transcription Factors, TFIII; D014158:Transcription, Genetic; D014982:Xenopus laevis; D000098832:Transcription Factor TFIIIC
D002843:Chromatin; D012335:RNA, Ribosomal; D012341:RNA, Ribosomal, 5S; D035582:Transcription Factor TFIIIA; D035361:Transcription Factor TFIIIB; D014157:Transcription Factors; D019474:Transcription Factors, TFIII; D000098832:Transcription Factor TFIIIC; D004247:DNA