Score: 1.00 |
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| Title: Comparative analysis of RNA editing sites in higher plant chloroplasts .
| | Journal: J Mol .
Evol Citation: V : 53 ( 4-5 ) P : 327-32 Year: Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub11675592 Accession (PMID): 11675592 | | Abstract: Transcripts of land plant chloroplast genomes undergo C-to-U RNA editing .
Systematic search disclosed 31 editing sites in tobacco , 27 in maize , and 21 in rice .
Based on these identified sites , potential editing sites have been predicted in the transcripts from four angiosperm chloroplast genomes which have been completely sequenced .
Most RNA editing events occur in internal codons , which result in amino-acid substitutions .
The initiation codon AUG was found to be created from ACG by RNA editing in the transcripts from rpl2 , psbL , and ndhD genes .
Comparison of editing patterns raises a possibility that many editing sites were acquired in the evolution of angiosperms .
| Matching Sentences:
[ Sen. 5, subscore: 1.00 ]: The initiation codon AUG was found to be created from ACG by RNA editing in the transcripts from rpl2 , psbL , and ndhD genes .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
Score: 2.00 |
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| Title: The role of RNA editing in conservation of start codons in chloroplast genomes .
| | Journal: Gene Citation: V : 146 ( 2 ) P : 177-82 Year: 1994 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub8076816 Accession (PMID): 8076816 | | Abstract: Open reading frames ( ORFs ) , encoded by the plastid genomes of tobacco , liverwort , rice and maize were aligned with a view to studying the conservation of translational start and stop codons created by RNA editing of homologous genes .
It became evident that most of the homologous ORFs have conserved translation start and stop signals at the gene level .
However , some of the ORFs show differences with respect to extensions of their 3 and 5 terminal regions .
For example , the proposed N-termini of the ndhD-encoded peptides from different plant species are very variable in length and amino-acid composition .
Sequence analysis of ndhD and the corresponding cDNA shows that editing of an ACG triplet in tobacco , spinach and snapdragon leads to the creation of an AUG codon , corresponding to the start codon in other species .
Conservation of translational start codons of plastome-encoded genes can , therefore , be achieved by editing of transcripts , and the definition of plastome-encoded ORFs must take potential editing events into consideration .
| Matching Sentences:
[ Sen. 4, subscore: 1.00 ]: For example , the proposed N-termini of the ndhD-encoded peptides from different plant species are very variable in length and amino-acid composition .
[ Sen. 5, subscore: 1.00 ]: Sequence analysis of ndhD and the corresponding cDNA shows that editing of an ACG triplet in tobacco , spinach and snapdragon leads to the creation of an AUG codon , corresponding to the start codon in other species .
| | Supplemental links/files: reference in endnote online text related articles pubmed citation | |
