HAMAP rule MF_02043
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_02043 |
| Accession | MF_02043 |
| Dates | 20-JUL-2015 (Created)
03-SEP-2024 (Last updated, Version 8) |
| Name | DusC_subfam |
| Scope(s) |
Bacteria Pseudomonadota |
| Template(s) | P33371; [ Recover all ] |
| Triggered by |
HAMAP; MF_02043 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | DUSC |
| Protein name | RecName: Full=tRNA-dihydrouridine(16) synthase; EC=1.3.1.-; AltName: Full=U16-specific dihydrouridine synthase; Short=U16-specific Dus; AltName: Full=tRNA-dihydrouridine synthase C; |
| Gene name | Name=dusC; |
Comments
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| FUNCTION | Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified base found in the D-loop of most tRNAs, via the reduction of the C5-C6 double bond in target uridines. Specifically modifies U16 in tRNAs. |
| CATALYTIC ACTIVITY | Reaction=5,6-dihydrouridine(16) in tRNA + NADP(+) = uridine(16) in tRNA + NADPH + H(+); Xref=Rhea:RHEA:53376, Rhea:RHEA-COMP:13543, Rhea:RHEA-COMP:13544, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443; |
| CATALYTIC ACTIVITY | Reaction=5,6-dihydrouridine(16) in tRNA + NAD(+) = uridine(16) in tRNA + NADH + H(+); Xref=Rhea:RHEA:53380, Rhea:RHEA-COMP:13543, Rhea:RHEA-COMP:13544, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443; |
| COFACTOR | Name=FMN; Xref=ChEBI:CHEBI:58210; |
| SIMILARITY | Belongs to the Dus family. DusC subfamily. |
Keywords
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Gene Ontology
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| GO:0010181; Molecular function:FMN binding |
| GO:0000049; Molecular function:tRNA binding |
| GO:0017150; Molecular function:tRNA dihydrouridine synthase activity |
| GO:0002943; Biological process:tRNA dihydrouridine synthesis |
Cross-references
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| PROSITE | PS01136; UPF0034; 1; |
| Pfam | PF01207; Dus; 1; |
| PIRSF | PIRSF006621; Dus; 1; |
Features
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| From: DUSC_ECOLI (P33371) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| BINDING | 7 | 9 | /ligand="FMN" /ligand_id="ChEBI:CHEBI:58210" |
P-M-[EQ] | ||||||||
| BINDING | 200 | 202 | /ligand="FMN" /ligand_id="ChEBI:CHEBI:58210" |
N-G-[ED] | ||||||||
| BINDING | 224 | 225 | /ligand="FMN" /ligand_id="ChEBI:CHEBI:58210" |
[GC]-[RC] | ||||||||
| ACT_SITE | 98 | 98 | /note="Proton donor" | C | ||||||||
| BINDING | 68 | 68 | /ligand="FMN" /ligand_id="ChEBI:CHEBI:58210" |
Q | ||||||||
| BINDING | 139 | 139 | /ligand="FMN" /ligand_id="ChEBI:CHEBI:58210" |
[KR] | ||||||||
| SITE | 35 | 35 | /note="Interacts with tRNA; defines subfamily-specific binding signature" | R | ||||||||
| SITE | 95 | 95 | /note="Interacts with tRNA" | N | ||||||||
| SITE | 176 | 176 | /note="Interacts with tRNA" | Y | ||||||||
| SITE | 272 | 272 | /note="Interacts with tRNA; defines subfamily-specific binding signature" | R | ||||||||
| SITE | 274 | 274 | /note="Interacts with tRNA; defines subfamily-specific binding signature" | K | ||||||||
| SITE | 279 | 279 | /note="Interacts with tRNA" | Y | ||||||||
| SITE | 295 | 295 | /note="Interacts with tRNA; defines subfamily-specific binding signature" | [RK] | ||||||||
Additional information
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| Size range | 290-360 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |