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Q7N709 (RLMN_PHOLL) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 70. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Dual-specificity RNA methyltransferase RlmN

EC=2.1.1.-
EC=2.1.1.192
Alternative name(s):
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
Ordered Locus Names:plu1373
OrganismPhotorhabdus luminescens subsp. laumondii (strain TT01) [Complete proteome] [HAMAP]
Taxonomic identifier243265 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaePhotorhabdus

Protein attributes

Sequence length392 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

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 By similarity. HAMAP-Rule MF_01849

Catalytic activity

2 S-adenosyl-L-methionine + adenine(2503) in 23S rRNA = S-adenosyl-L-homocysteine + L-methionine + 5'-deoxyadenosine + 2-methyladenine(2503) in 23S rRNA. HAMAP-Rule MF_01849

2 S-adenosyl-L-methionine + adenine37 in tRNA = S-adenosyl-L-homocysteine + L-methionine + 5'-deoxyadenosine + 2-methyladenine37 in tRNA. HAMAP-Rule MF_01849

Cofactor

Binds 1 4Fe-4S cluster. The cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine By similarity.

Subcellular location

Cytoplasm Potential HAMAP-Rule MF_01849.

Miscellaneous

Reaction proceeds by a ping-pong mechanism involving intermediate methylation of a conserved cysteine residue By similarity. HAMAP-Rule MF_01849

Sequence similarities

Belongs to the radical SAM superfamily. RlmN family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 392392Dual-specificity RNA methyltransferase RlmN HAMAP-Rule MF_01849
PRO_0000350307

Regions

Region187 – 1882S-adenosyl-L-methionine binding By similarity
Region241 – 2433S-adenosyl-L-methionine binding By similarity

Sites

Active site1131Proton acceptor Potential
Active site3631S-methylcysteine intermediate By similarity
Metal binding1331Iron-sulfur (4Fe-4S-S-AdoMet) By similarity
Metal binding1371Iron-sulfur (4Fe-4S-S-AdoMet) By similarity
Metal binding1401Iron-sulfur (4Fe-4S-S-AdoMet) By similarity
Binding site2191S-adenosyl-L-methionine By similarity
Binding site3201S-adenosyl-L-methionine; via amide nitrogen and carbonyl oxygen By similarity

Amino acid modifications

Disulfide bond126 ↔ 363(transient) By similarity

Sequences

Sequence LengthMass (Da)Tools
Q7N709 [UniParc].

Last modified December 15, 2003. Version 1.
Checksum: 518BFC5DD9E8D908

FASTA39243,893
        10         20         30         40         50         60 
MSQPNTAAQF AASVVSETPE KKGGKINLLD LNRKQMRQFF IDMGEKPFRA DQVMKWIYHY 

        70         80         90        100        110        120 
CYDDFEQMTD INKILRAKLQ QVAEIRAPEV AEEQRSADGT IKWAITVGDQ QVETVYIPED 

       130        140        150        160        170        180 
DRATLCVSSQ VGCALECKFC STAQQGFNRN LRVSEIIGQV WRAAKIIGSL KSSGRRPITN 

       190        200        210        220        230        240 
VVMMGMGEPL LNLNNVVPAM EIMMDDFGFG LSKRRVTLST SGVVPALDKL GDMIDVALAI 

       250        260        270        280        290        300 
SLHAPTDDVR DDIVPINRKY NIEQFLAGVR RYLTKSNANQ GRVTVEYVML DHINDSVEQA 

       310        320        330        340        350        360 
HQLAECLKET PSKINLIPWN PFPGAPYGRS SNSRIDRFAK VLMEYGFTTI VRKTRGDDID 

       370        380        390 
AACGQLAGDV IDRTKRTLKK RQAGEPIQIR SV 

« Hide

References

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
BX571863 Genomic DNA. Translation: CAE13666.1.
RefSeqNP_928673.1. NC_005126.1.

3D structure databases

ProteinModelPortalQ7N709.
ModBaseSearch...

Protein-protein interaction databases

STRING243265.plu1373.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaCAE13666; CAE13666; plu1373.
GeneID2801351.
KEGGplu:plu1373.
PATRIC20506525. VBIPhoLum48522_1521.

Organism-specific databases

GenoListplu1373.
CMRSearch...

Phylogenomic databases

eggNOGCOG0820.
HOGENOMHOG000217992.
KOK06941.
OMAIYHFGVS.
ProtClustDBPRK11194.

Family and domain databases

Gene3D3.20.20.70. 1 hit.
HAMAPMF_01849. RNA_methyltr_RlmN.
InterProIPR013785. Aldolase_TIM.
IPR006638. Elp3/MiaB/NifB.
IPR004383. rRNA_lsu_MTrfase_RlmN.
IPR007197. rSAM.
[Graphical view]
PfamPF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFPIRSF006004. CHP00048. 1 hit.
SMARTSM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsTIGR00048. TIGR00048. 1 hit.
ProtoNetSearch...

Entry information

Entry nameRLMN_PHOLL
AccessionPrimary (citable) accession number: Q7N709
Entry history
Integrated into UniProtKB/Swiss-Prot: September 2, 2008
Last sequence update: December 15, 2003
Last modified: May 1, 2013
This is version 70 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families