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Field | Value |
---|---|
Namespace | Biological process |
Short description | TRNA 5'-leader removal |
Full defintion | Generation of the mature 5'-end of the tRNA, usually via an endonucleolytic cleavage by RNase P. |
Subterm of |
The relationship of GO:0001682 with other GO terms.
Relationship type | GO terms |
---|---|
Is a | |
Regulates | n.a. |
Part of | n.a. |
Positively regulates | n.a. |
Negatively regulates | n.a. |
A force layout showing the ancestor tree for GO:0001682, and its immediate children. If you wish to explore the tree dynamically, please use the GO Explorer.
This table contains additional metadata associated with the GO entry's definition field.
Field | Value |
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PMID | This is the end: processing, editing and repair at the tRNA 3'-terminus. Biol Chem. 2001 Aug; 382 (8): 1147–56.PMID: 11592395 The generation of a mature tRNA 3'-end is an important step in the processing pathways leading to functional tRNA molecules. While 5'-end processing by RNase P is similar in all organisms, generation of the mature 3'-terminus seems to be more variable and complex. The first step in this reaction is the removal of 3'-trailer sequences. In bacteria, this is a multistep process performed by endo- and exonucleases. In contrast, the majority of eukaryotes generate the mature tRNA 3'-end in a single step reaction, which consists of an endonucleolytic cut at the tRNA terminus. After removal of the 3'-trailer, a terminal CCA triplet has to be added to allow charging of the tRNA with its cognate amino acid. The enzyme catalyzing this reaction is tRNA nucleotidyltransferase, homologs of which have been found in representatives of all three kingdoms. Furthermore, in metazoan mitochondria, some genes encode 3'-terminally truncated tRNAs, which are restored in an editing reaction in order to yield functional tRNAs. Interestingly, this reaction is not restricted to distinct tRNAs, but seems to act on a variety of tRNA molecules and represents therefore a more general tRNA repair mechanism than a specialized editing reaction. In this review, the current knowledge about these crucial reactions is summarized. |
GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .
Transcript | Name | Description | GO terms | GO count |
---|---|---|---|---|
– | Ribonucleases P/MRP protein subunit POP1; TAIR: AT2G47300.2 ribonuclease Ps; Swiss-Prot: sp|Q99575|POP1_HUMAN Ribonucleases P/MRP protein subunit POP1; TrEMBL-Plants: tr|I1MI98|I1MI98_SOYBN Uncharacterized protein; Found in the gene: LotjaGi3g1v0302000 | 3 | ||
– | Ribonucleases P/MRP protein subunit POP1; TAIR: AT2G47300.2 ribonuclease Ps; Swiss-Prot: sp|Q99575|POP1_HUMAN Ribonucleases P/MRP protein subunit POP1; TrEMBL-Plants: tr|V7AJR0|V7AJR0_PHAVU Uncharacterized protein; Found in the gene: LotjaGi4g1v0245400 | 3 | ||
– | Ribonucleases P/MRP protein subunit POP1; TAIR: AT2G47300.2 ribonuclease Ps; Swiss-Prot: sp|Q99575|POP1_HUMAN Ribonucleases P/MRP protein subunit POP1; TrEMBL-Plants: tr|V7AJR0|V7AJR0_PHAVU Uncharacterized protein; Found in the gene: LotjaGi4g1v0245400 | 3 |
A list of co-occurring GO terms within the L. japonicus gene space:
GO term | Namespace | Name | Observations | Saturation (%) |
---|---|---|---|---|
Cellular component | Nucleolar ribonuclease P complex | 1 | 33.33 |