A0A388TKE2 · A0A388TKE2_9BACT
- ProteinProbable dual-specificity RNA methyltransferase RlmN
- GenerlmN
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids336 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs.
Miscellaneous
Reaction proceeds by a ping-pong mechanism involving intermediate methylation of a conserved cysteine residue.
Catalytic activity
- adenosine2503 in 23S rRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2-methyladenosine2503 in 23S rRNA + 5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-adenosyl-L-homocysteine
RHEA-COMP:10152 CHEBI:74411 Position: 2503+ 2 RHEA-COMP:10001 + 2 CHEBI:59789 = RHEA-COMP:10282 CHEBI:74497 Position: 2503+ CHEBI:17319 + CHEBI:57844 + 2 RHEA-COMP:10000 + CHEBI:57856
Cofactor
Note: Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine.
Features
Showing features for active site, binding site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Active site | 88 | Proton acceptor | |||
Binding site | 108 | [4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet | |||
Binding site | 112 | [4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet | |||
Binding site | 115 | [4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet | |||
Binding site | 155-156 | S-adenosyl-L-methionine (UniProtKB | ChEBI) | |||
Binding site | 187 | S-adenosyl-L-methionine (UniProtKB | ChEBI) | |||
Binding site | 210-212 | S-adenosyl-L-methionine (UniProtKB | ChEBI) | |||
Binding site | 286 | S-adenosyl-L-methionine (UniProtKB | ChEBI) | |||
Active site | 329 | S-methylcysteine intermediate | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | 4 iron, 4 sulfur cluster binding | |
Molecular Function | metal ion binding | |
Molecular Function | rRNA (adenine(2503)-C2-)-methyltransferase activity | |
Molecular Function | rRNA binding | |
Molecular Function | tRNA (adenine(37)-C2)-methyltransferase activity | |
Molecular Function | tRNA binding | |
Biological Process | rRNA base methylation | |
Biological Process | tRNA methylation |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameProbable dual-specificity RNA methyltransferase RlmN
- EC number
- Alternative names
Gene names
Organism names
- Taxonomic lineageBacteria > Candidatus Margulisiibacteriota > Candidatus Termititenacia > Candidatus Termititenacales > Candidatus Termititenacaceae > Candidatus Termititenax
Accessions
- Primary accessionA0A388TKE2
Proteomes
Subcellular Location
PTM/Processing
Keywords
- PTM
Structure
Sequence
- Sequence statusComplete
- Length336
- Mass (Da)38,034
- Last updated2018-12-05 v1
- MD5 Checksum1B926E80A61359627633539A1FC4C1DF
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
BGZP01000003 EMBL· GenBank· DDBJ | GBR77522.1 EMBL· GenBank· DDBJ | Genomic DNA |