PMID:11871663 - Revision history

imported>Wikientrybot: change PMID template to TableEdit version

2013-09-15T04:17:03Z

change PMID template to TableEdit version

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	'''~~No author listed~~''' (2002) RNase E plays an essential role in the maturation of Escherichia coli tRNA precursors. ''RNA'' '''8''':97-109		'''Li, Z and Deutscher, MP''' (2002) RNase E plays an essential role in the maturation of Escherichia coli tRNA precursors. ''RNA'' '''8''':97-109
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	!align=left \|Abstract		!align=left \|Abstract

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2013-09-01T18:09:23Z

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imported>Wikientrybot: change PMID template to TableEdit version

2013-09-01T18:09:23Z

change PMID template to TableEdit version

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	~~<span style~~ = '~~font-size: large~~'> '~~''Li, Z and Deutscher, MP~~''' (2002) RNase E plays an essential role in the maturation of Escherichia coli tRNA precursors.''RNA'' '''8''':97-109</~~span>~~		\|-
			!align=left \|Citation
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			'''No author listed''' (2002) RNase E plays an essential role in the maturation of Escherichia coli tRNA precursors. ''RNA'' '''8''':97-109
			\|-
			!align=left \|Abstract
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			Conversion of tRNA precursors to their mature forms requires the action of both endo- and exoribonucleases. Although studies over many years identified the endoribonuclease, RNase P, and several exoribonucleases as the enzymes responsible for generating the mature 5' and 3' termini, respectively, of Escherichia coli tRNAs, relatively little is known about how tRNAs are separated from long multimeric or multifunction transcripts, or from long leader and trailer sequences. To examine this question, the tRNA products that accumulate in mutant strains devoid of multiple exoribonucleases plus one or several endoribonucleases were analyzed by northern analysis. We find that the multifunction tyrT transcript, which contains two tRNA(Tyr)1 sequences separated by a 209-nt spacer region plus a downstream mRNA, is cleaved at three sites in the spacer region by the endoribonuclease, RNase E. When both RNase E and RNase P are absent, a product containing both tRNAs accumulates. Two multimeric tRNA transcripts, those for tRNA Arg-His-Leu-Pro and tRNA Gly-Cys-Leu also require RNase E for maturation. For the former transcript, products with long 3' extensions on tRNA(Arg), tRNA(His), and tRNA(Pro), as well as the primary transcript, accumulate in the absence of RNase E. For the latter transcript, RNase E cleaves downstream of each tRNA. Little processing of either multimeric transcript occurs in the absence of both RNase E and RNase P. These data indicate that RNase E is a major contributor to the initial processing of E. coli tRNA transcripts, providing substrates for final maturation by RNase P and the 3' exoribonucleases. Based on this new information, a detailed model for tRNA maturation is proposed.
			\|-
			!align=left \|Links
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			[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11871663 PubMed] [http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1370232 PMC1370232]

	~~{\|{{Prettytable}} align = 'center' width= '70%'~~
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	\|~~{{TableHeadingColor}}~~ \|~~'''Abstract'''~~ \|~~\| Conversion of tRNA precursors to their mature forms requires the action of both endo- and exoribonucleases. Although studies over many years identified the endoribonuclease~~, ~~RNase P, and several exoribonucleases as the enzymes responsible for generating the mature 5' and 3' termini, respectively, of~~ Escherichia coli ~~tRNAs~~, ~~relatively little is known about how tRNAs are separated from long multimeric or multifunction transcripts, or from long leader and trailer sequences. To examine this question~~, the tRNA products that accumulate in mutant strains devoid of multiple exoribonucleases plus one or several endoribonucleases were analyzed by northern analysis. We find that the multifunction tyrT transcript, which contains two tRNA(Tyr)1 sequences separated by a 209-~~nt spacer region plus a downstream mRNA~~, ~~is cleaved at three sites in the spacer region by the endoribonuclease~~, ~~RNase E. When both RNase E and RNase P are absent~~, ~~a product containing both tRNAs accumulates. Two multimeric tRNA transcripts~~, ~~those for tRNA Arg-His-Leu-Pro and tRNA Gly-Cys-Leu also require RNase E for maturation. For the former transcript~~, ~~products with long 3' extensions on tRNA(Arg)~~, tRNA(His), and tRNA(Pro), as well as the primary transcript, accumulate in the absence of RNase E. For the latter transcript, RNase E cleaves downstream of each tRNA. Little processing of either multimeric transcript occurs in the absence of both RNase E and RNase P~~. These data indicate that RNase E is a major contributor to the initial processing of E. coli tRNA transcripts~~, ~~providing substrates for final maturation by RNase P and the 3' exoribonucleases. Based on this new information, a detailed model for tRNA maturation is proposed.~~		!align=left \|Keywords
	~~</noinclude>~~		\|\|
	\|-		Blotting, Northern; DNA Primers/genetics; Endoribonucleases/deficiency; Endoribonucleases/genetics; Endoribonucleases/metabolism; Escherichia coli/enzymology; Escherichia coli/genetics; Escherichia coli Proteins; Models, Genetic; RNA Precursors/chemistry; RNA Precursors/genetics; RNA Precursors/metabolism; RNA Processing, Post-Transcriptional; RNA, Bacterial/chemistry; RNA, Bacterial/genetics; RNA, Bacterial/metabolism; RNA, Catalytic/metabolism; RNA, Transfer, Tyr/genetics; Ribonuclease P; Transcription, Genetic
	\|{{~~TableHeadingColor~~}} ~~nowrap \|'''Links''' \|\| [http~~:~~//www~~.~~ncbi~~.~~nlm.nih.gov/entrez/query.fcgi?cmd~~=~~Retrieve~~&db=~~pubmed~~&~~dopt~~=~~Abstract~~&~~list_uids~~=~~11871663 PubMed~~]
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	==Significance {{HelpIcon\|Help:Literature}} ==		==Significance {{HelpIcon\|Help:Literature}} ==
	{{LitSignificance}}		{{LitSignificance}}

127.0.0.1: /Volumes/r3/t3/ul/working/touchTables/touch_all_tables.php

2010-06-17T20:00:39Z

/Volumes/r3/t3/ul/working/touchTables/touch_all_tables.php

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	!\|Gene product!!Qualifier!!GO ID!!GO term name!!Evidence Code!!with/from!!Aspect!!Notes!!Status		!\|Gene product!!Qualifier!!GO ID!!GO term name!!Evidence Code!!with/from!!Aspect!!Notes!!Status

127.0.0.1: Update TableEdit tables.

2010-01-09T03:59:16Z

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imported>Wikientrybot: Fix links due to TableEditLinks.php changes.

2009-02-20T00:29:04Z

Fix links due to TableEditLinks.php changes.

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127.0.0.1: Edited by wikibot

2008-04-30T12:29:43Z

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127.0.0.1: Edited by wikibot

2008-04-25T22:17:39Z

Edited by wikibot

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	\|{{TableHeadingColor}} nowrap \|'''Links''' \|\| [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11871663 PubMed]		\|{{TableHeadingColor}} nowrap \|'''Links''' \|\| [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11871663 PubMed]
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	==Significance {{HelpIcon\|Help:Literature}} ==		==Significance {{HelpIcon\|Help:Literature}} ==
	{{LitSignificance}}		{{LitSignificance}}
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	==Annotations {{HelpIcon\|Help:Literature}}==		==Annotations {{HelpIcon\|Help:Literature}}==
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	==EcoliWiki Links {{HelpIcon\|Help:Literature}} ==		==EcoliWiki Links {{HelpIcon\|Help:Literature}} ==

172.16.48.28: New PMID: Page!

2008-02-06T08:36:24Z

New PMID: Page!

New page

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<span style = 'font-size: large'> '''Li, Z and Deutscher, MP''' (2002) RNase E plays an essential role in the maturation of Escherichia coli tRNA precursors.''RNA'' '''8''':97-109</span>

{|{{Prettytable}} align = 'center' width= '70%'
|-
|{{TableHeadingColor}} |'''Abstract''' || Conversion of tRNA precursors to their mature forms requires the action of both endo- and exoribonucleases. Although studies over many years identified the endoribonuclease, RNase P, and several exoribonucleases as the enzymes responsible for generating the mature 5' and 3' termini, respectively, of Escherichia coli tRNAs, relatively little is known about how tRNAs are separated from long multimeric or multifunction transcripts, or from long leader and trailer sequences. To examine this question, the tRNA products that accumulate in mutant strains devoid of multiple exoribonucleases plus one or several endoribonucleases were analyzed by northern analysis. We find that the multifunction tyrT transcript, which contains two tRNA(Tyr)1 sequences separated by a 209-nt spacer region plus a downstream mRNA, is cleaved at three sites in the spacer region by the endoribonuclease, RNase E. When both RNase E and RNase P are absent, a product containing both tRNAs accumulates. Two multimeric tRNA transcripts, those for tRNA Arg-His-Leu-Pro and tRNA Gly-Cys-Leu also require RNase E for maturation. For the former transcript, products with long 3' extensions on tRNA(Arg), tRNA(His), and tRNA(Pro), as well as the primary transcript, accumulate in the absence of RNase E. For the latter transcript, RNase E cleaves downstream of each tRNA. Little processing of either multimeric transcript occurs in the absence of both RNase E and RNase P. These data indicate that RNase E is a major contributor to the initial processing of E. coli tRNA transcripts, providing substrates for final maturation by RNase P and the 3' exoribonucleases. Based on this new information, a detailed model for tRNA maturation is proposed.
</noinclude>
|-
|{{TableHeadingColor}} nowrap |'''Links''' || [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11871663 PubMed]
|}
</protect>
==Significance {{HelpIcon|Help:Literature}} ==
{{LitSignificance}}

== Useful Materials and Methods {{HelpIcon|Help:Literature}}==
{{LitMaterials}}

==Annotations {{HelpIcon|Help:Literature}}==
<protect>

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==EcoliWiki Links {{HelpIcon|Help:Literature}} ==
{{LitLinks}}

==References==
{{RefHelp}}
<references/>