Term Information

Accession
GO:0002143
Name
tRNA wobble position uridine thiolation
Ontology
biological_process
Synonyms
tRNA wobble uridine thiolation, wobble position s2U biosynthesis
Alternate IDs
None
Definition
The process in which a uridine residue at position 34 in the anticodon of a tRNA is post-transcriptionally thiolated at the C2 position. This process involves transfer of a sulfur from cysteine to position C2 by several steps. Source: PMID:16871210
Comment
In E. coli, the first step of the reaction is reductive elimination of sulfur from L-cysteine by IscS cysteine desulfurase to form an enzyme-bound cysteine-persulfide intermediate. Then, five essential gene products, TusA, TusB, TusC, TusD and TusE, mediate a sulfur relay that delivers the terminal sulfur of persulfide from IscS to MnmA12. The last protein, MnmA catalyzes the transfer of the sulfur from IscS to an ATP activated U34 of the tRNA.
History
See term history for GO:0002143 at QuickGO
Subset
None
Feedback
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Parents of tRNA wobble position uridine thiolation (GO:0002143)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
tRNA wobble position uridine thiolation [is_a relation] is_a  tRNA thio-modification (GO:0034227)
tRNA wobble position uridine thiolation [is_a relation] is_a  tRNA wobble uridine modification (GO:0002098)
Children of tRNA wobble position uridine thiolation (GO:0002143)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
mitochondrial tRNA wobble position uridine thiolation (GO:1990799) [is_a relation] is_a  tRNA wobble position uridine thiolation
None.