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A0A1Y0LAY0 · A0A1Y0LAY0_TATCI

Function

function

Specifically methylates position 2 of adenine 2503 in 23S rRNA and position 2 of adenine 37 in tRNAs. m2A2503 modification seems to play a crucial role in the proofreading step occurring at the peptidyl transferase center and thus would serve to optimize ribosomal fidelity.

Miscellaneous

Reaction proceeds by a ping-pong mechanism involving intermediate methylation of a conserved cysteine residue.

Catalytic activity

Cofactor

[4Fe-4S] cluster (UniProtKB | Rhea| CHEBI:49883 )

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
IDPosition(s)Description
Active site109Proton acceptor
Binding site129[4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet
Binding site133[4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet
Binding site136[4Fe-4S] cluster (UniProtKB | ChEBI); 4Fe-4S-S-AdoMet
Binding site183-184S-adenosyl-L-methionine (UniProtKB | ChEBI)
Binding site215S-adenosyl-L-methionine (UniProtKB | ChEBI)
Binding site237-239S-adenosyl-L-methionine (UniProtKB | ChEBI)
Binding site316S-adenosyl-L-methionine (UniProtKB | ChEBI)
Active site359S-methylcysteine intermediate

GO annotations

AspectTerm
Cellular Componentcytoplasm
Molecular Function4 iron, 4 sulfur cluster binding
Molecular Functionmetal ion binding
Molecular FunctionrRNA (adenine(2503)-C2-)-methyltransferase activity
Molecular FunctionrRNA binding
Molecular FunctiontRNA (adenine(37)-C2)-methyltransferase activity
Molecular FunctiontRNA binding
Biological ProcessrRNA base methylation
Biological ProcesstRNA methylation

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    Dual-specificity RNA methyltransferase RlmN
  • EC number
  • Alternative names
    • 23S rRNA (adenine(2503)-C(2))-methyltransferase
    • 23S rRNA m2A2503 methyltransferase
    • Ribosomal RNA large subunit methyltransferase N
    • tRNA (adenine(37)-C(2))-methyltransferase
    • tRNA m2A37 methyltransferase

Gene names

    • Name
      rlmN
    • ORF names
      A7K98_14835

Organism names

Accessions

  • Primary accession
    A0A1Y0LAY0

Proteomes

Subcellular Location

Keywords

PTM/Processing

Features

Showing features for disulfide bond.

TypeIDPosition(s)Description
Disulfide bond122↔359(transient)

Keywords

Family & Domains

Features

Showing features for domain.

TypeIDPosition(s)Description
Domain115-354Radical SAM core

Sequence similarities

Belongs to the radical SAM superfamily. RlmN family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    388
  • Mass (Da)
    43,148
  • Last updated
    2017-08-30 v1
  • MD5 Checksum
    8D2D969E652DE9B43697330644C56AF3
MSEPAATPVSVTPVAASPKAKINLLDLNRQQMREFFLQLGEKPFRADQVMKWIYHYCSDDFEQMTDINKVLRQKLSQVAEIRAPEVAEEMRSSDGTIKWAIRVGDQLVETVYIPENDRATLCVSSQVGCALECKFCSTAQQGFNRNLRVSEIIGQVWRAAKIIGAAKVTGQRPITNVVMMGMGEPLLNLNNVVPAMEIMLDDFGFGLSKRRVTLSTSGVVPALDKLGDMIDVALAISLHAPNDALRDDIVPINKKYNIETFLQSVKRYMEKSNANQGRVTVEYVLLDHVNDSTDHAHQLAEVLKNTPCKINLIPWNPFPGAPYGRSSNSRVDRFSKVLMDYGFTTIVRKTRGDDIDAACGQLAGDVIDRTKRTMRKKAAGEEISVKAV

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP015579
EMBL· GenBank· DDBJ
ARU94915.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
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