Different Chromatin Structures along the Spacers Flanking Active and Inactive Xenopus rRNA Genes

Visualization of Nucleolar Genes

1969 • 865 citations

Two different chromatin structures coexist in ribosomal RNA genes throughout the cell cycle

1989 • 391 citations

TRANSCRIPTION OF CLONED EUKARYOTIC RIBOSOMAL RNA GENES

1986 • 333 citations

Enhancers and ribosomal gene spacers

1984 • 238 citations

Enhancer-like properties of the 60/81 bp elements in the ribosomal gene spacer of Xenopus laevis

1984 • 209 citations

News from the nucleolus: rRNA gene expression

1991 • 181 citations

Cross-Linking of DNA in Situ as a Probe for Chromatin Structure

1976 • 175 citations

rRNA synthesis in the nucleolus

1990 • 164 citations

Characterization of three sites of RNA 3$prime; end formation in the Xenopus ribosomal gene spacer

1986 • 155 citations

Cross-linking of DNA with trimethylpsoralen is a probe for chromatin structure

1977 • 143 citations

The Xenopus ribosomal gene enhancers bind an essential polymerase I transcription factor, xUBF.

1989 • 130 citations

Restriction analysis of the nontranscribed spacers of Xenopus laevis ribosomal DNA

1977 • 129 citations

Psoralen-crosslinking of DNA as a probe for the structure of active nucleolar chromatin

1984 • 120 citations

Quantitative determination of rDNA transcription units in vertebrate cells

1991 • 118 citations

xUBF and Rib 1 are both required for formation of a stable polymerase I promoter complex in X. laevis.

1991 • 101 citations

Drug-induced dispersal of transcribed rRNA genes and transcriptional products: immunolocalization and silver staining of different nucleolar components in rat cells treated with 5,6-dichloro-beta-D-ribofuranosylbenzimidazole.

1984 • 94 citations

Structure of the active nucleolar chromatin of Xenopus laevis oocytes

1982 • 89 citations

Regulatory elements of the generic ribosomal gene

1989 • 85 citations

Genomic transcriptional activity and the structure of chromatin

1976 • 73 citations

Sites of topoisomerase I action on X. laevis ribosomal chromatin: Transcriptionally active rDNA has an ∼200 bp repeating structure

1988 • 69 citations

Ribosomal Genes of Xenopus laevis : Evidence of Nucleosomes in Transcriptionally Active Chromatin

1976 • 68 citations

DNAase I sensitivity and methylation of active versus inactive rRNA genes in Xenopus species hybrids

1982 • 56 citations

The ribosomal spacer inXenopus laevisis transcribed as part of the primary ribosomal RNA

1986 • 55 citations

Template-engaged and free RNA polymerases during Xenopus erythroid cell maturation

1978 • 47 citations

The Xenopus ribosomal DNA 60- and 81-base-pair repeats are position-dependent enhancers that function at the establishment of the preinitiation complex: analysis in vivo and in an enhancer-responsive in vitro system.

1989 • 45 citations

A DNA-binding protein is required for termination of transcription by RNA polymerase I in Xenopus laevis.

1990 • 44 citations

A mosaicism in the higher order structure of Xenopus oocyte nucleolar chromatin prior to and during ribosomal gene transcription

1981 • 42 citations

A transcription factor, TFIS, interacts with both the promoter and enhancer of the Xenopus rRNA genes.

1989 • 42 citations

Structure of the extrachromosomal ribosomal RNA chromatin of Physarum polycephalum

1987 • 40 citations

DNasel-hypersensitive sites at promoter-like sequences in the spacer ofXenopus laevisandXenopus borealisribosomal DNA

1983 • 32 citations

Psoralen-crosslinking of soluble and of H1-depleted soluble rat liver chromatin

1984 • 32 citations

A point mutation uncouples RNA 3'-end formation and termination during ribosomal gene transcription in Xenopus laevis.

1990 • 30 citations

The enhancers and promoters of theXenopus laevis; ribosomal spacer are associated with histones upon active transcription of the ribosomal genes

1990 • 28 citations

Characterization of ribosomal RNA synthesis in a gene dosage mutant: the relationship of topoisomerase I and chromatin structure to transcriptional activity.

1987 • 25 citations

Structural organization of spacer chromatin between transcribed ribosomal RNA genes in amphibian oocytes.

1980 • 24 citations

New procedure using a psoralen derivative for analysis of nucleosome associated DNA sequences in chromatin of living cells

1982 • 23 citations

Heat shock stabilizes highly unstable transcripts of the Xenopus ribosomal gene spacer.

1987 • 23 citations

Analysis of the psoralen-crosslinking pattern in chromatin DNA by exonuclease digestion

1988 • 20 citations

A structural concept for nucleoli of Dictyostelium discoideum deduced from dissociation studies

1984 • 19 citations

DNA sequences for typical ribosomal gene spacers from Xenopus laevis and Xenopus borealis

1987 • 19 citations

A cell-free assay system for the analysis of changes in RNA synthesis during the development of Xenopus laevis

1979 • 18 citations

Compact structure of ribosomal chromatin inXenopus laevis

1984 • 13 citations

Faithful in vivo transcription termination of Xenopus laevis rDNA

1991 • 12 citations

Processing and termination of RNA polymerase I transcripts

1987 • 10 citations

The DNase I sensitivity of Xenopus laevis genes transcribed by RNA polymerase III

1982 • 10 citations

Functional difference between the sites of ribosomal 40S precursor 3′ end formation inXenopus laevisandXenopus borealis

1990 • 10 citations

The use of Psoralen-Photocrosslinking for the Analysis of the Chromatin Structure during Transcription

1989 • 5 citations