selenium donor protein; In prokaryotes, the incorporation of selenocysteine as the 21st amino ...
11-304
3.59e-90
selenium donor protein; In prokaryotes, the incorporation of selenocysteine as the 21st amino acid, encoded by TGA, requires several elements: SelC is the tRNA itself, SelD acts as a donor of reduced selenium, SelA modifies a serine residue on SelC into selenocysteine, and SelB is a selenocysteine-specific translation elongation factor. 3-prime or 5-prime non-coding elements of mRNA have been found as probable structures for directing selenocysteine incorporation. This model describes SelD, known as selenophosphate synthetase, selenium donor protein, and selenide,water dikinase. SelD provides reduced selenium for the selenium transferase SelA. This protein itself contains selenocysteine in many species; any sequence scoring well but not aligning to the beginning of the model is likely to have a selenocysteine residue incorrectly interpreted as a stop codon upstream of the given sequence. The SelD protein also provides selenophosphate for the enzyme tRNA 2-selenouridine synthase, which catalyzes a tRNA base modification. It also contributes to selenium incorporation by selenium-dependent molybdenum hydroxylases (SDMH), in genomes with the marker TIGR03309. All genomes with SelD should make selenocysteine, selenouridine, SDMH, or some combination.
Pssm-ID: 273100 [Multi-domain] Cd Length: 301 Bit Score: 272.06 E-value: 3.59e-90
Selenophosphate synthetase (SelD) catalyzes the conversion of selenium to selenophosphate ...
12-324
1.86e-75
Selenophosphate synthetase (SelD) catalyzes the conversion of selenium to selenophosphate which is required by a number of bacterial, archaeal and eukaryotic organisms for synthesis of Secys-tRNA, the precursor of selenocysteine in selenoenzymes. The N-terminal domain of SelD is related to the ATP-binding domains of hydrogen expression/formation protein HypE, the AIR synthases, and FGAM synthase and is thought to bind ATP.
Pssm-ID: 100031 [Multi-domain] Cd Length: 287 Bit Score: 233.95 E-value: 1.86e-75
AIR synthase related protein, N-terminal domain; This family includes Hydrogen expression ...
61-146
3.28e-11
AIR synthase related protein, N-terminal domain; This family includes Hydrogen expression/formation protein HypE, AIR synthases EC:6.3.3.1, FGAM synthase EC:6.3.5.3 and selenide, water dikinase EC:2.7.9.3. The N-terminal domain of AIR synthase forms the dimer interface of the protein, and is suggested as a putative ATP binding domain.
Pssm-ID: 459859 [Multi-domain] Cd Length: 104 Bit Score: 59.38 E-value: 3.28e-11
selenium donor protein; In prokaryotes, the incorporation of selenocysteine as the 21st amino ...
11-304
3.59e-90
selenium donor protein; In prokaryotes, the incorporation of selenocysteine as the 21st amino acid, encoded by TGA, requires several elements: SelC is the tRNA itself, SelD acts as a donor of reduced selenium, SelA modifies a serine residue on SelC into selenocysteine, and SelB is a selenocysteine-specific translation elongation factor. 3-prime or 5-prime non-coding elements of mRNA have been found as probable structures for directing selenocysteine incorporation. This model describes SelD, known as selenophosphate synthetase, selenium donor protein, and selenide,water dikinase. SelD provides reduced selenium for the selenium transferase SelA. This protein itself contains selenocysteine in many species; any sequence scoring well but not aligning to the beginning of the model is likely to have a selenocysteine residue incorrectly interpreted as a stop codon upstream of the given sequence. The SelD protein also provides selenophosphate for the enzyme tRNA 2-selenouridine synthase, which catalyzes a tRNA base modification. It also contributes to selenium incorporation by selenium-dependent molybdenum hydroxylases (SDMH), in genomes with the marker TIGR03309. All genomes with SelD should make selenocysteine, selenouridine, SDMH, or some combination.
Pssm-ID: 273100 [Multi-domain] Cd Length: 301 Bit Score: 272.06 E-value: 3.59e-90
Selenophosphate synthetase (SelD) catalyzes the conversion of selenium to selenophosphate ...
12-324
1.86e-75
Selenophosphate synthetase (SelD) catalyzes the conversion of selenium to selenophosphate which is required by a number of bacterial, archaeal and eukaryotic organisms for synthesis of Secys-tRNA, the precursor of selenocysteine in selenoenzymes. The N-terminal domain of SelD is related to the ATP-binding domains of hydrogen expression/formation protein HypE, the AIR synthases, and FGAM synthase and is thought to bind ATP.
Pssm-ID: 100031 [Multi-domain] Cd Length: 287 Bit Score: 233.95 E-value: 1.86e-75
AIR synthase related protein, N-terminal domain; This family includes Hydrogen expression ...
61-146
3.28e-11
AIR synthase related protein, N-terminal domain; This family includes Hydrogen expression/formation protein HypE, AIR synthases EC:6.3.3.1, FGAM synthase EC:6.3.5.3 and selenide, water dikinase EC:2.7.9.3. The N-terminal domain of AIR synthase forms the dimer interface of the protein, and is suggested as a putative ATP binding domain.
Pssm-ID: 459859 [Multi-domain] Cd Length: 104 Bit Score: 59.38 E-value: 3.28e-11
AIR synthase (PurM) related protein, subgroup 1 of unknown function. The family of PurM ...
24-324
2.68e-10
AIR synthase (PurM) related protein, subgroup 1 of unknown function. The family of PurM related proteins includes Hydrogen expression/formation protein HypE, AIR synthases, FGAM synthase and Selenophosphate synthetase (SelD). They all contain two conserved domains and seem to dimerize. The N-terminal domain forms the dimer interface and is a putative ATP binding domain.
Pssm-ID: 100037 [Multi-domain] Cd Length: 298 Bit Score: 60.30 E-value: 2.68e-10
AIR synthase related protein, C-terminal domain; This family includes Hydrogen expression ...
172-334
3.46e-10
AIR synthase related protein, C-terminal domain; This family includes Hydrogen expression/formation protein HypE, AIR synthases EC:6.3.3.1, FGAM synthase EC:6.3.5.3 and selenide, water dikinase EC:2.7.9.3. The function of the C-terminal domain of AIR synthase is unclear, but the cleft formed between N and C domains is postulated as a sulphate binding site.
Pssm-ID: 460684 [Multi-domain] Cd Length: 152 Bit Score: 57.74 E-value: 3.46e-10
AIR (aminoimidazole ribonucleotide) synthase related protein. This family includes Hydrogen ...
64-323
7.47e-10
AIR (aminoimidazole ribonucleotide) synthase related protein. This family includes Hydrogen expression/formation protein HypE, AIR synthases, FGAM (formylglycinamidine ribonucleotide) synthase and Selenophosphate synthetase (SelD). The N-terminal domain of AIR synthase forms the dimer interface of the protein, and is suggested as a putative ATP binding domain.
Pssm-ID: 100027 [Multi-domain] Cd Length: 222 Bit Score: 58.18 E-value: 7.47e-10
ThiL (Thiamine-monophosphate kinase) plays a dual role in de novo biosynthesis and in salvage ...
37-325
7.63e-08
ThiL (Thiamine-monophosphate kinase) plays a dual role in de novo biosynthesis and in salvage of exogenous thiamine. Thiamine salvage occurs in two steps, with thiamine kinase catalyzing the formation of thiamine phosphate, and ThiL catalyzing the conversion of this intermediate to thiamine pyrophosphate. The N-terminal domain of ThiL binds ATP and is related to the ATP-binding domains of hydrogen expression/formation protein HypE, the AIR synthases, FGAM synthase and selenophosphate synthetase (SelD).
Pssm-ID: 100030 [Multi-domain] Cd Length: 291 Bit Score: 52.94 E-value: 7.63e-08
Phosphoribosylformylglycinamidine (FGAM) synthase, synthetase domain [Nucleotide transport and ...
258-333
1.77e-06
Phosphoribosylformylglycinamidine (FGAM) synthase, synthetase domain [Nucleotide transport and metabolism]; Phosphoribosylformylglycinamidine (FGAM) synthase, synthetase domain is part of the Pathway/BioSystem: Purine biosynthesis
Pssm-ID: 439816 [Multi-domain] Cd Length: 747 Bit Score: 49.66 E-value: 1.77e-06
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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Functional characterization of the conserved domain architecture found on the query.
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This image shows a graphical summary of conserved domains identified on the query sequence.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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click on the bars or triangles to view your query sequence embedded in a multiple sequence alignment of the proteins used to develop the corresponding domain model.
The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
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To view your query sequence embedded in that multiple sequence alignment, click on the colored bars in the Graphical Summary portion of the search results page,
or click on the triangles, if present, that represent functional sites (conserved features)
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Concise Display shows only the best scoring domain model, in each hit category listed below except non-specific hits, for each region on the query sequence.
(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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(labeled illustration) Four types of hits can be shown, as available,
for each region on the query sequence:
specific hits meet or exceed a domain-specific e-value threshold
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and represent a very high confidence that the query sequence belongs to the same protein family as the sequences use to create the domain model
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the domain superfamily to which the specific and non-specific hits belong
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