Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis
We have sequenced the region of the Acanthamoeba castellanii ribosomal RNA transcription unit which encodes the mature small subunit ribosomal RNA (SSU rRNA). It, like the SSU rRNA coding regions of Euglena gracilis and kinetoplastids, is approx. 30% larger than those reported from other eukaryotes....
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| Veröffentlicht in: | Gene 1986, Vol.44 (1), p.63-70 |
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| container_title | Gene |
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| creator | Gunderson, John H. Sogin, Mitchell L. |
| description | We have sequenced the region of the
Acanthamoeba castellanii ribosomal RNA transcription unit which encodes the mature small subunit ribosomal RNA (SSU rRNA). It, like the SSU rRNA coding regions of
Euglena gracilis and kinetoplastids, is approx. 30% larger than those reported from other eukaryotes. The extra nucleotides are present in highly variable regions of the rRNA genes. Direct sequence analysis of the corresponding variable regions in the rRNA of
A. castellanii and
E. gracilis demonstrates that the extra nucleotides are present in the mature rRNA; no post-transcriptional modification of the rRNAs occurs to reduce them to a size more typical of eukaryotes. The extra elements present in the rRNAs of these two organisms are not homologous; they have independent evolutionary origins. |
| doi_str_mv | 10.1016/0378-1119(86)90043-0 |
| format | Article |
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Acanthamoeba castellanii ribosomal RNA transcription unit which encodes the mature small subunit ribosomal RNA (SSU rRNA). It, like the SSU rRNA coding regions of
Euglena gracilis and kinetoplastids, is approx. 30% larger than those reported from other eukaryotes. The extra nucleotides are present in highly variable regions of the rRNA genes. Direct sequence analysis of the corresponding variable regions in the rRNA of
A. castellanii and
E. gracilis demonstrates that the extra nucleotides are present in the mature rRNA; no post-transcriptional modification of the rRNAs occurs to reduce them to a size more typical of eukaryotes. The extra elements present in the rRNAs of these two organisms are not homologous; they have independent evolutionary origins.</description><identifier>ISSN: 0378-1119</identifier><identifier>EISSN: 1879-0038</identifier><identifier>DOI: 10.1016/0378-1119(86)90043-0</identifier><identifier>PMID: 3095190</identifier><identifier>CODEN: GENED6</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Acanthamoeba castellanii ; Amoeba - genetics ; Animals ; Base Sequence ; Biological and medical sciences ; Cell structures and functions ; Euglena gracilis ; Euglena gracilis - genetics ; Fundamental and applied biological sciences. Psychology ; introns ; Macromolecular Substances ; Molecular and cellular biology ; Nucleic Acid Conformation ; nucleotide sequencing ; protozoa ; Recombinant DNA ; Ribosome ; RNA Processing, Post-Transcriptional ; RNA, Ribosomal - genetics ; secondary structure</subject><ispartof>Gene, 1986, Vol.44 (1), p.63-70</ispartof><rights>1986</rights><rights>1987 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-10a7aac544bd0a259808be6efb73ce5c4982c0f03d35bfba14f336bceeff1513</citedby><cites>FETCH-LOGICAL-c398t-10a7aac544bd0a259808be6efb73ce5c4982c0f03d35bfba14f336bceeff1513</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0378-1119(86)90043-0$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=8114672$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/3095190$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Gunderson, John H.</creatorcontrib><creatorcontrib>Sogin, Mitchell L.</creatorcontrib><title>Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis</title><title>Gene</title><addtitle>Gene</addtitle><description>We have sequenced the region of the
Acanthamoeba castellanii ribosomal RNA transcription unit which encodes the mature small subunit ribosomal RNA (SSU rRNA). It, like the SSU rRNA coding regions of
Euglena gracilis and kinetoplastids, is approx. 30% larger than those reported from other eukaryotes. The extra nucleotides are present in highly variable regions of the rRNA genes. Direct sequence analysis of the corresponding variable regions in the rRNA of
A. castellanii and
E. gracilis demonstrates that the extra nucleotides are present in the mature rRNA; no post-transcriptional modification of the rRNAs occurs to reduce them to a size more typical of eukaryotes. The extra elements present in the rRNAs of these two organisms are not homologous; they have independent evolutionary origins.</description><subject>Acanthamoeba castellanii</subject><subject>Amoeba - genetics</subject><subject>Animals</subject><subject>Base Sequence</subject><subject>Biological and medical sciences</subject><subject>Cell structures and functions</subject><subject>Euglena gracilis</subject><subject>Euglena gracilis - genetics</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>introns</subject><subject>Macromolecular Substances</subject><subject>Molecular and cellular biology</subject><subject>Nucleic Acid Conformation</subject><subject>nucleotide sequencing</subject><subject>protozoa</subject><subject>Recombinant DNA</subject><subject>Ribosome</subject><subject>RNA Processing, Post-Transcriptional</subject><subject>RNA, Ribosomal - genetics</subject><subject>secondary structure</subject><issn>0378-1119</issn><issn>1879-0038</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1986</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkUGLFDEQhYMo6zj6DxRyEHEPrUkn6U57EIZlV4VBQfYeqtOVmWh3ek3SC_vvzewMc9S6FFR9VTzeI-Q1Zx84481HJlpdcc6797q57BiTomJPyIrrtqsYE_opWZ2R5-RFSr9YKaXqC3IhWKd4x1bkYYthl_f0HqKH7OdAfaC4_Ib4MGdvafz5fZM-0TTBONK09Evw-TikLs4TzXukd7GgKSe6sRDyHqYZe6AWUsZxhOA9hTDQ62U3YgC6i2D96NNL8szBmPDVqa_J7c317dXXavvjy7erzbayotO54gxaAKuk7AcGteo00z026PpWWFRWdrq2zDExCNW7Hrh0QjS9RXSOKy7W5N3xbVH5Z8GUzeSTfRSG85JM23ImJW_-C3KpWl03qoDyCNo4pxTRmbvop2KY4cwckjEH283BdqMb85hMGa3Jm9P_pZ9wOB-doij7t6c9JAujixCsT2dMcy6bti7Y5yOGxbN7j9Ek6zFYHHxEm80w-3_r-AvAIquv</recordid><startdate>1986</startdate><enddate>1986</enddate><creator>Gunderson, John H.</creator><creator>Sogin, Mitchell L.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><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>7TM</scope><scope>8FD</scope><scope>FR3</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>1986</creationdate><title>Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis</title><author>Gunderson, John H. ; Sogin, Mitchell L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-10a7aac544bd0a259808be6efb73ce5c4982c0f03d35bfba14f336bceeff1513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1986</creationdate><topic>Acanthamoeba castellanii</topic><topic>Amoeba - genetics</topic><topic>Animals</topic><topic>Base Sequence</topic><topic>Biological and medical sciences</topic><topic>Cell structures and functions</topic><topic>Euglena gracilis</topic><topic>Euglena gracilis - genetics</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>introns</topic><topic>Macromolecular Substances</topic><topic>Molecular and cellular biology</topic><topic>Nucleic Acid Conformation</topic><topic>nucleotide sequencing</topic><topic>protozoa</topic><topic>Recombinant DNA</topic><topic>Ribosome</topic><topic>RNA Processing, Post-Transcriptional</topic><topic>RNA, Ribosomal - genetics</topic><topic>secondary structure</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gunderson, John H.</creatorcontrib><creatorcontrib>Sogin, Mitchell L.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Nucleic Acids Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Gene</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gunderson, John H.</au><au>Sogin, Mitchell L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis</atitle><jtitle>Gene</jtitle><addtitle>Gene</addtitle><date>1986</date><risdate>1986</risdate><volume>44</volume><issue>1</issue><spage>63</spage><epage>70</epage><pages>63-70</pages><issn>0378-1119</issn><eissn>1879-0038</eissn><coden>GENED6</coden><abstract>We have sequenced the region of the
Acanthamoeba castellanii ribosomal RNA transcription unit which encodes the mature small subunit ribosomal RNA (SSU rRNA). It, like the SSU rRNA coding regions of
Euglena gracilis and kinetoplastids, is approx. 30% larger than those reported from other eukaryotes. The extra nucleotides are present in highly variable regions of the rRNA genes. Direct sequence analysis of the corresponding variable regions in the rRNA of
A. castellanii and
E. gracilis demonstrates that the extra nucleotides are present in the mature rRNA; no post-transcriptional modification of the rRNAs occurs to reduce them to a size more typical of eukaryotes. The extra elements present in the rRNAs of these two organisms are not homologous; they have independent evolutionary origins.</abstract><cop>Lausanne</cop><cop>Amsterdam</cop><cop>New York, NY</cop><pub>Elsevier B.V</pub><pmid>3095190</pmid><doi>10.1016/0378-1119(86)90043-0</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0378-1119 |
| ispartof | Gene, 1986, Vol.44 (1), p.63-70 |
| issn | 0378-1119 1879-0038 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_77104416 |
| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Acanthamoeba castellanii Amoeba - genetics Animals Base Sequence Biological and medical sciences Cell structures and functions Euglena gracilis Euglena gracilis - genetics Fundamental and applied biological sciences. Psychology introns Macromolecular Substances Molecular and cellular biology Nucleic Acid Conformation nucleotide sequencing protozoa Recombinant DNA Ribosome RNA Processing, Post-Transcriptional RNA, Ribosomal - genetics secondary structure |
| title | Length variation in eukaryotic rRNAs: small subunit rRNAs from the protists Acanthamoeba castellanii and Euglena gracilis |
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