Literature DB >> 6266918

Extrachromosomal rDNA of Tetrahymena thermophila is not a perfect palindrome.

G B Kiss, R E Pearlman.   

Abstract

We have determined the restriction-endonuclease-cleavage map and the nucleotide sequence of the central 1.4 kb fragment of the macronuclear extrachromosomal rDNA of Tetrahymena thermophila. These data demonstrate that this molecule is not a perfect palindrome, having a 29 bp AT-rich non-palindromic sequence at its center. This observation is important in determining the mechanism by which a single chromosomally integrated rRNA gene in the micronucleus is rearranged and amplified during sexual development to yield multiple copies of extrachromosomal rDNA in the macronucleus.

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Year:  1981        PMID： 6266918     DOI： 10.1016/0378-1119(81)90032-9

Source DB:  PubMed          Journal:  Gene        ISSN： 0378-1119            Impact factor:   3.688


  14 in total

1.  Sequence and structure of the extrachromosomal palindrome encoding the ribosomal RNA genes in Dictyostelium.

Authors:  Richard Sucgang; Guokai Chen; Wen Liu; Ryan Lindsay; Jing Lu; Donna Muzny; Gad Shaulsky; William Loomis; Richard Gibbs; Adam Kuspa
Journal:  Nucleic Acids Res       Date:  2003-05-01       Impact factor: 16.971

2.  Complete sequence of the extrachromosomal rDNA molecule from the ciliate Tetrahymena thermophila strain B1868VII.

Authors:  J Engberg; H Nielsen
Journal:  Nucleic Acids Res       Date:  1990-12-11       Impact factor: 16.971

3.  Conservation of sequences adjacent to the telomeric C4A2 repeats of ciliate macronuclear ribosomal RNA gene molecules.

Authors:  P B Challoner; E H Blackburn
Journal:  Nucleic Acids Res       Date:  1986-08-11       Impact factor: 16.971

4.  A palindromic mutation of the linear killer plasmid k2 of yeast.

Authors:  M Wésolowski-Louvel; H Fukuhara
Journal:  Nucleic Acids Res       Date:  1990-08-25       Impact factor: 16.971

5.  Computer modelling of DNA structures involved in chromosome maintenance.

Authors:  T T Eckdahl; J N Anderson
Journal:  Nucleic Acids Res       Date:  1987-10-26       Impact factor: 16.971

Review 6.  The DNA of ciliated protozoa.

Authors:  D M Prescott
Journal:  Microbiol Rev       Date:  1994-06

7.  Transcribed and non-transcribed regions of Tetrahymena ribosomal gene chromatin have different accessibilities to micrococcal nuclease.

Authors:  T E Palen; T R Cech
Journal:  Nucleic Acids Res       Date:  1983-04-11       Impact factor: 16.971

8.  Strong sequence conservation of a 38 bp region near the center of the extrachromosomal rDNA palindrome in different Tetrahymena species.

Authors:  J Engberg
Journal:  Nucleic Acids Res       Date:  1983-07-25       Impact factor: 16.971

9.  Gene amplification in Tetrahymena thermophila: formation of extrachromosomal palindromic genes coding for rRNA.

Authors:  M C Yao; S G Zhu; C H Yao
Journal:  Mol Cell Biol       Date:  1985-06       Impact factor: 4.272

10.  Accurate processing and amplification of cloned germ line copies of ribosomal DNA injected into developing nuclei of Tetrahymena thermophila.

Authors:  M C Yao; C H Yao
Journal:  Mol Cell Biol       Date:  1989-03       Impact factor: 4.272
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