Alternating polarity in rRNA genes
Spread nucleolar material from A . exigua exhibits an unusual arrangement of rDNA cistrons. The cistrons form head-to-head “diamond-shaped” doublets with a short spacer separating the members of the doublet. Single cistrons are usually terminal and arranged tail-to-tail with the adjacent doublet, su...
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| Veröffentlicht in: | Cell biology international reports 1978, Vol.2 (1), p.41-50 |
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| creator | Berger, S. Zellmer, D.M. Kloppstech, K. Richter, G. Dillard, W.L. Schweiger, H.G. |
| description | Spread nucleolar material from
A
.
exigua
exhibits an unusual arrangement of rDNA cistrons. The cistrons form head-to-head “diamond-shaped” doublets with a short spacer separating the members of the doublet. Single cistrons are usually terminal and arranged tail-to-tail with the adjacent doublet, suggesting the possibility of a repeating unit with a tail-to-tail, “bow-tie” doublet configuration in which the cistrons (average length: 1.44 μm) could be explained by an extraordinary shrinking of the DNA strand during transcription. This suggestion is supported by the estimation of the molecular mass of an early, or the primary, transcription product (2.2 × 10
6). |
| doi_str_mv | 10.1016/0309-1651(78)90083-8 |
| format | Article |
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exigua
exhibits an unusual arrangement of rDNA cistrons. The cistrons form head-to-head “diamond-shaped” doublets with a short spacer separating the members of the doublet. Single cistrons are usually terminal and arranged tail-to-tail with the adjacent doublet, suggesting the possibility of a repeating unit with a tail-to-tail, “bow-tie” doublet configuration in which the cistrons (average length: 1.44 μm) could be explained by an extraordinary shrinking of the DNA strand during transcription. This suggestion is supported by the estimation of the molecular mass of an early, or the primary, transcription product (2.2 × 10
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A
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exigua
exhibits an unusual arrangement of rDNA cistrons. The cistrons form head-to-head “diamond-shaped” doublets with a short spacer separating the members of the doublet. Single cistrons are usually terminal and arranged tail-to-tail with the adjacent doublet, suggesting the possibility of a repeating unit with a tail-to-tail, “bow-tie” doublet configuration in which the cistrons (average length: 1.44 μm) could be explained by an extraordinary shrinking of the DNA strand during transcription. This suggestion is supported by the estimation of the molecular mass of an early, or the primary, transcription product (2.2 × 10
6).</description><subject>Acetabularia - analysis</subject><subject>Acetabularia - genetics</subject><subject>Chlorophyta - genetics</subject><subject>DNA - analysis</subject><subject>Genes</subject><subject>RNA, Ribosomal - genetics</subject><subject>Transcription, Genetic</subject><issn>0309-1651</issn><issn>1878-240X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1978</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9UMtKAzEUDeKrVv-gi8GF6GI0mWTy2BRK8QVFQRTchTRzUyLTmZpMhf69qVO6lLu4r3MOnIPQiOBbggm_wxSrnPCSXAt5ozCWNJcHaECkkHnB8OchGuwhp-gsxi-cdlqqE3TMKeaEDdDlpO4gNKbzzSJbtbUJvttkvsnC28skW0AD8RwdOVNHuNj1Ifp4uH-fPuWz18fn6WSW20KQLi8LAZUTc0rt3JGKEquc4qIEzgrnZBrTwRQAthSYKMYFF8wxho0VpFKODtFVr7sK7fcaYqeXPlqoa9NAu45a0lRc8gRkPdCGNsYATq-CX5qw0QTrbTJ6a1tvbWsh9V8yiT1Eo53-er6Eak_qo0jvcf-G5PHHQ9DRemgsVD6A7XTV-v_1fwEgZHB8</recordid><startdate>1978</startdate><enddate>1978</enddate><creator>Berger, S.</creator><creator>Zellmer, D.M.</creator><creator>Kloppstech, K.</creator><creator>Richter, G.</creator><creator>Dillard, W.L.</creator><creator>Schweiger, H.G.</creator><general>Elsevier B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>1978</creationdate><title>Alternating polarity in rRNA genes</title><author>Berger, S. ; Zellmer, D.M. ; Kloppstech, K. ; Richter, G. ; Dillard, W.L. ; Schweiger, H.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c271t-527edf7b33cbf1d31c9f9675e642ff8967c9fa2eec57019467674f440ac71d9f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1978</creationdate><topic>Acetabularia - analysis</topic><topic>Acetabularia - genetics</topic><topic>Chlorophyta - genetics</topic><topic>DNA - analysis</topic><topic>Genes</topic><topic>RNA, Ribosomal - genetics</topic><topic>Transcription, Genetic</topic><toplevel>online_resources</toplevel><creatorcontrib>Berger, S.</creatorcontrib><creatorcontrib>Zellmer, D.M.</creatorcontrib><creatorcontrib>Kloppstech, K.</creatorcontrib><creatorcontrib>Richter, G.</creatorcontrib><creatorcontrib>Dillard, W.L.</creatorcontrib><creatorcontrib>Schweiger, H.G.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Cell biology international reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Berger, S.</au><au>Zellmer, D.M.</au><au>Kloppstech, K.</au><au>Richter, G.</au><au>Dillard, W.L.</au><au>Schweiger, H.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Alternating polarity in rRNA genes</atitle><jtitle>Cell biology international reports</jtitle><addtitle>Cell Biol Int Rep</addtitle><date>1978</date><risdate>1978</risdate><volume>2</volume><issue>1</issue><spage>41</spage><epage>50</epage><pages>41-50</pages><issn>0309-1651</issn><eissn>1878-240X</eissn><abstract>Spread nucleolar material from
A
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exigua
exhibits an unusual arrangement of rDNA cistrons. The cistrons form head-to-head “diamond-shaped” doublets with a short spacer separating the members of the doublet. Single cistrons are usually terminal and arranged tail-to-tail with the adjacent doublet, suggesting the possibility of a repeating unit with a tail-to-tail, “bow-tie” doublet configuration in which the cistrons (average length: 1.44 μm) could be explained by an extraordinary shrinking of the DNA strand during transcription. This suggestion is supported by the estimation of the molecular mass of an early, or the primary, transcription product (2.2 × 10
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| ispartof | Cell biology international reports, 1978, Vol.2 (1), p.41-50 |
| issn | 0309-1651 1878-240X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_83838686 |
| source | MEDLINE; Alma/SFX Local Collection |
| subjects | Acetabularia - analysis Acetabularia - genetics Chlorophyta - genetics DNA - analysis Genes RNA, Ribosomal - genetics Transcription, Genetic |
| title | Alternating polarity in rRNA genes |
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