共查询到20条相似文献,搜索用时 659 毫秒
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A quantitative assay for Xenopus 5S RNA gene transcription in vitro 总被引:37,自引:0,他引:37
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J S Hanas D J Hazuda D F Bogenhagen F Y Wu C W Wu 《The Journal of biological chemistry》1983,258(23):14120-14125
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J Andersen 《FEBS letters》1987,217(2):197-202
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Oocyte and somatic 5S ribosomal RNA and 5S RNA encoding genes in Xenopus tropicalis. 总被引:2,自引:2,他引:0
W Nietfeld M Digweed H Mentzel W Meyerhof M K?ster W Kn?chel V A Erdmann T Pieler 《Nucleic acids research》1988,16(18):8803-8815
We have investigated the structure of oocyte and somatic 5S ribosomal RNA and of 5S RNA encoding genes in Xenopus tropicalis. The sequences of the two 5S RNA families differ in four positions, but only one of these substitutions, a C to U transition in position 79 within the internal control region of the corresponding 5S RNA encoding genes, is a distinguishing characteristic of all Xenopus somatic and oocyte 5S RNAs characterized to date, including those from Xenopus laevis and Xenopus borealis. 5S RNA genes in Xenopus tropicalis are organized in clusters of multiple repeats of a 264 base pair unit; the structural and functional organization of the Xenopus tropicalis oocyte 5S gene is similar to the somatic but distinct from the oocyte 5S DNA in Xenopus laevis and Xenopus borealis. A comparative sequence analysis reveals the presence of a strictly conserved pentamer motif AAAGT in the 5'-flanking region of Xenopus 5S genes which we demonstrate in a separate communication to serve as a binding signal for an upstream stimulatory factor. 相似文献
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Analysis of RNA polymerase III transcription complexes by gel filtration 总被引:35,自引:0,他引:35
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Differential transcription of Xenopus oocyte and somatic-type 5 S genes in a Xenopus oocyte extract 总被引:10,自引:0,他引:10
L Millstein P Eversole-Cire J Blanco J M Gottesfeld 《The Journal of biological chemistry》1987,262(35):17100-17110
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B S Shastry 《Progress in biophysics and molecular biology》1991,56(2):135-144
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Xenopus transcription factor A promotes DNA reassociation 总被引:4,自引:0,他引:4
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