Protein: tRNA 2-selenouridine synthase (EC 2.9.1.3) (Selenophosphate-dependent tRNA 2-selenouridine synthase) (P33667)
Organism: Escherichia coli (strain K12)
Function: Involved in the post-transcriptional modification of the uridine at the wobble position (U34) of tRNA(Lys), tRNA(Glu) and tRNA(Gln). Catalyzes the conversion of 2-thiouridine (S2U-RNA) to 2-selenouridine (Se2U-RNA). Acts in a two-step process involving geranylation of 2-thiouridine (S2U) to S-geranyl-2-thiouridine (geS2U) and subsequent selenation of the latter derivative to 2-selenouridine (Se2U) in the tRNA chain.
Sequence: MQERHTEQDYRALLIADTPIIDVRAPIEFEHGAMPAAINLPLMNNDERAAVGTCYKQQGSDAALALGHKLVAGEIRQQRMDAWRAACLQNPQGILCCARGGQRSHIVQSWLHAAGIDYPLVEGGYKALRQTAIQATIELAQKPIVLIGGCTGSGKTLLVQQQPNGVDLEGLARHRGSAFGRTLQPQLSQASFENLLAAEMLKTDARQNLRLWVLEDESRMIGSNHLPECLRERMTQAAIAVVEDPFEIRLERLNEEYFLRMHHDFTHAYGDEQGWQEYCEYLHHGLSAIKRRLGLQRYNELAARLDAALTTQLTTGSTDGHLAWLVPLLEEYYDPMYRYQLEKKAEKVVFRGEWAEVAEWVKAR
InterPro domains: - IPR017582: tRNA 2-selenouridine synthase (family) [1-364]
- IPR036873: Rhodanese-like domain superfamily (homologous_superfamily) [5-134]
- IPR001763: Rhodanese-like domain (domain) [4-137]
Interaction partners: - Selenide, water dikinase
- Protein nucleotidyltransferase SelO
- Selenocysteine-specific elongation factor
- L-seryl-tRNA
- tRNA 5-methylaminomethyl-2-thiouridine biosynthesis bifunctional protein MnmC
- Uncharacterized protein YqeB
- Uncharacterized protein YqeC
- tRNA-specific 2-thiouridylase MnmA
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016740 (transferase activity), GO:0016782 (transferase activity, transferring sulphur-containing groups), GO:0016783 (sulfurtransferase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0050896 (response to stimulus), GO:0009987 (cellular process), GO:0009628 (response to abiotic stimulus), GO:0009058 (biosynthetic process), GO:0044237 (cellular metabolic process), GO:0042221 (response to chemical), GO:0044281 (small molecule metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:0051716 (cellular response to stimulus), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:1901360 (organic cyclic compound metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:1901576 (organic substance biosynthetic process), GO:0006139 (nucleobase-containing compound metabolic process), GO:0009314 (response to radiation), GO:0046483 (heterocycle metabolic process), GO:0055086 (nucleobase-containing small molecule metabolic process), GO:0019637 (organophosphate metabolic process), GO:0044249 (cellular biosynthetic process), GO:0006725 (cellular aromatic compound metabolic process), GO:0034641 (cellular nitrogen compound metabolic process), GO:1901135 (carbohydrate derivative metabolic process), GO:0006793 (phosphorus metabolic process), GO:1901566 (organonitrogen compound biosynthetic process), GO:0009416 (response to light stimulus), GO:1901362 (organic cyclic compound biosynthetic process), GO:0006753 (nucleoside phosphate metabolic process), GO:0019438 (aromatic compound biosynthetic process), GO:0019693 (ribose phosphate metabolic process), GO:0018130 (heterocycle biosynthetic process), GO:0090407 (organophosphate biosynthetic process), GO:0044271 (cellular nitrogen compound biosynthetic process), GO:0006796 (phosphate-containing compound metabolic process), GO:0072521 (purine-containing compound metabolic process), GO:1901137 (carbohydrate derivative biosynthetic process), GO:0034654 (nucleobase-containing compound biosynthetic process), GO:0009259 (ribonucleotide metabolic process), GO:0009117 (nucleotide metabolic process), GO:0046390 (ribose phosphate biosynthetic process), GO:0009411 (response to UV), GO:0006163 (purine nucleotide metabolic process), GO:0072522 (purine-containing compound biosynthetic process), GO:1901293 (nucleoside phosphate biosynthetic process), GO:0009126 (purine nucleoside monophosphate metabolic process), GO:0009124 (nucleoside monophosphate biosynthetic process), GO:0009165 (nucleotide biosynthetic process), GO:0006164 (purine nucleotide biosynthetic process), GO:0009150 (purine ribonucleotide metabolic process), GO:0009260 (ribonucleotide biosynthetic process), GO:0009161 (ribonucleoside monophosphate metabolic process), GO:0009152 (purine ribonucleotide biosynthetic process), GO:0009156 (ribonucleoside monophosphate biosynthetic process), GO:0009167 (purine ribonucleoside monophosphate metabolic process), GO:0009127 (purine nucleoside monophosphate biosynthetic process), GO:0046033 (AMP metabolic process), GO:0006167 (AMP biosynthetic process), GO:0009168 (purine ribonucleoside monophosphate biosynthetic process)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005737 (cytoplasm), GO:0005829 (cytosol), GO:0005622 (intracellular anatomical structure)