Literature summary for 2.7.7.19 extracted from

Maes, A.; Gracia, C.; Hajnsdorf, E.; Regnier, P.
Search for poly(A) polymerase targets in E. coli reveals its implication in surveillance of Glu tRNA processing and degradation of stable RNAs (2012), Mol. Microbiol., 83, 436-451.

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Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
additional information	Escherichia coli	rRNA fragments and tRNA precursors originating from the internal spacer regions of the rrn operons, in particular, rrnB are abundant poly(A) polymerase targets. Glu tRNA precursors originating from the rrnB and rrnG transcripts exhibit long 3' trailers that are primarily removed by polyribonucleotide nucleotidyltransferase and to a lesser extent by RNase II and poly(A) polymerase. Glu tRNA precursors still harbouring the 5' leader can be degraded by a 3' to 5' quality control pathway involving poly(A) polymerase	?	-	?

Organism

Organism	UniProt	Comment	Textmining
Escherichia coli	-	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
additional information	rRNA fragments and tRNA precursors originating from the internal spacer regions of the rrn operons, in particular, rrnB are abundant poly(A) polymerase targets. Glu tRNA precursors originating from the rrnB and rrnG transcripts exhibit long 3' trailers that are primarily removed by polyribonucleotide nucleotidyltransferase and to a lesser extent by RNase II and poly(A) polymerase. Glu tRNA precursors still harbouring the 5' leader can be degraded by a 3' to 5' quality control pathway involving poly(A) polymerase	Escherichia coli	?	-	?

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Release 2023.1 (January 2023)