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Protein

Ribosomal RNA small subunit methyltransferase H

Gene

rsmH

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Specifically methylates the N4 position of cytidine in position 1402 (C1402) of 16S rRNA. In vitro, active on the assembled 30S subunit, but not naked 16S rRNA or 70S ribosomes.2 Publications

Catalytic activityi

S-adenosyl-L-methionine + cytosine(1402) in 16S rRNA = S-adenosyl-L-homocysteine + N(4)-methylcytosine(1402) in 16S rRNA.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei55S-adenosyl-L-methionineBy similarity1
Binding sitei79S-adenosyl-L-methionine; via amide nitrogenBy similarity1
Binding sitei101S-adenosyl-L-methionineBy similarity1
Binding sitei108S-adenosyl-L-methionineBy similarity1

GO - Molecular functioni

  • rRNA (cytosine-N4-)-methyltransferase activity Source: EcoCyc

GO - Biological processi

  • rRNA base methylation Source: EcoCyc
Complete GO annotation...

Keywords - Molecular functioni

Methyltransferase, Transferase

Keywords - Biological processi

rRNA processing

Keywords - Ligandi

S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciEcoCyc:EG11085-MONOMER.
ECOL316407:JW0080-MONOMER.
MetaCyc:EG11085-MONOMER.
BRENDAi2.1.1.199. 2026.

Names & Taxonomyi

Protein namesi
Recommended name:
Ribosomal RNA small subunit methyltransferase H (EC:2.1.1.199)
Alternative name(s):
16S rRNA m(4)C1402 methyltransferase
rRNA (cytosine-N(4)-)-methyltransferase RsmH
Gene namesi
Name:rsmH
Synonyms:mraW, yabC
Ordered Locus Names:b0082, JW0080
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG11085. rsmH.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: EcoCyc
  • cytosol Source: EcoCyc
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001086201 – 313Ribosomal RNA small subunit methyltransferase HAdd BLAST313

Proteomic databases

EPDiP60390.
PaxDbiP60390.
PRIDEiP60390.

Interactioni

Protein-protein interaction databases

BioGridi4261639. 12 interactors.
DIPiDIP-35840N.
IntActiP60390. 6 interactors.
STRINGi511145.b0082.

Structurei

Secondary structure

1313
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Turni10 – 12Combined sources3
Helixi13 – 18Combined sources6
Beta strandi26 – 30Combined sources5
Helixi36 – 42Combined sources7
Beta strandi50 – 56Combined sources7
Helixi58 – 64Combined sources7
Beta strandi72 – 77Combined sources6
Helixi79 – 81Combined sources3
Helixi82 – 88Combined sources7
Beta strandi95 – 101Combined sources7
Helixi106 – 110Combined sources5
Helixi112 – 114Combined sources3
Beta strandi118 – 120Combined sources3
Helixi136 – 142Combined sources7
Helixi145 – 156Combined sources12
Helixi161 – 174Combined sources14
Helixi180 – 190Combined sources11
Helixi202 – 213Combined sources12
Helixi215 – 229Combined sources15
Beta strandi230 – 242Combined sources13
Helixi243 – 255Combined sources13
Beta strandi281 – 287Combined sources7
Helixi291 – 296Combined sources6
Helixi298 – 300Combined sources3
Beta strandi304 – 310Combined sources7

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3TKAX-ray2.25A1-313[»]
ProteinModelPortaliP60390.
SMRiP60390.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni35 – 37S-adenosyl-L-methionine bindingBy similarity3

Sequence similaritiesi

Phylogenomic databases

eggNOGiENOG4105CGJ. Bacteria.
COG0275. LUCA.
HOGENOMiHOG000049778.
InParanoidiP60390.
KOiK03438.
OMAiADGCYLD.
PhylomeDBiP60390.

Family and domain databases

Gene3Di1.10.150.170. 1 hit.
3.40.50.150. 2 hits.
HAMAPiMF_01007. 16SrRNA_methyltr_H. 1 hit.
InterProiIPR002903. RsmH.
IPR023397. SAM-dep_MeTrfase_MraW_recog.
IPR029063. SAM-dependent_MTases.
[Graphical view]
PANTHERiPTHR11265. PTHR11265. 1 hit.
PfamiPF01795. Methyltransf_5. 1 hit.
[Graphical view]
PIRSFiPIRSF004486. MraW. 1 hit.
SUPFAMiSSF53335. SSF53335. 2 hits.
SSF81799. SSF81799. 1 hit.
TIGRFAMsiTIGR00006. TIGR00006. 1 hit.

Sequencei

Sequence statusi: Complete.

P60390-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MMENYKHTTV LLDEAVNGLN IRPDGIYIDG TFGRGGHSRL ILSQLGEEGR
60 70 80 90 100
LLAIDRDPQA IAVAKTIDDP RFSIIHGPFS ALGEYVAERD LIGKIDGILL
110 120 130 140 150
DLGVSSPQLD DAERGFSFMR DGPLDMRMDP TRGQSAAEWL QTAEEADIAW
160 170 180 190 200
VLKTYGEERF AKRIARAIVE RNREQPMTRT KELAEVVAAA TPVKDKFKHP
210 220 230 240 250
ATRTFQAVRI WVNSELEEIE QALKSSLNVL APGGRLSIIS FHSLEDRIVK
260 270 280 290 300
RFMRENSRGP QVPAGLPMTE EQLKKLGGRQ LRALGKLMPG EEEVAENPRA
310
RSSVLRIAER TNA
Length:313
Mass (Da):34,878
Last modified:February 16, 2004 - v1
Checksum:i43174C907A36ECC1
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X52063 Genomic DNA. Translation: CAA36283.1.
X55034 Genomic DNA. Translation: CAA38859.1.
U00096 Genomic DNA. Translation: AAC73193.1.
AP009048 Genomic DNA. Translation: BAB96650.1.
K00137 Genomic DNA. No translation available.
PIRiJH0092. QQECFT.
RefSeqiNP_414624.1. NC_000913.3.
WP_000970479.1. NZ_LN832404.1.

Genome annotation databases

EnsemblBacteriaiAAC73193; AAC73193; b0082.
BAB96650; BAB96650; BAB96650.
GeneIDi944806.
KEGGiecj:JW0080.
eco:b0082.
PATRICi32115269. VBIEscCol129921_0086.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X52063 Genomic DNA. Translation: CAA36283.1.
X55034 Genomic DNA. Translation: CAA38859.1.
U00096 Genomic DNA. Translation: AAC73193.1.
AP009048 Genomic DNA. Translation: BAB96650.1.
K00137 Genomic DNA. No translation available.
PIRiJH0092. QQECFT.
RefSeqiNP_414624.1. NC_000913.3.
WP_000970479.1. NZ_LN832404.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3TKAX-ray2.25A1-313[»]
ProteinModelPortaliP60390.
SMRiP60390.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4261639. 12 interactors.
DIPiDIP-35840N.
IntActiP60390. 6 interactors.
STRINGi511145.b0082.

Proteomic databases

EPDiP60390.
PaxDbiP60390.
PRIDEiP60390.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC73193; AAC73193; b0082.
BAB96650; BAB96650; BAB96650.
GeneIDi944806.
KEGGiecj:JW0080.
eco:b0082.
PATRICi32115269. VBIEscCol129921_0086.

Organism-specific databases

EchoBASEiEB1077.
EcoGeneiEG11085. rsmH.

Phylogenomic databases

eggNOGiENOG4105CGJ. Bacteria.
COG0275. LUCA.
HOGENOMiHOG000049778.
InParanoidiP60390.
KOiK03438.
OMAiADGCYLD.
PhylomeDBiP60390.

Enzyme and pathway databases

BioCyciEcoCyc:EG11085-MONOMER.
ECOL316407:JW0080-MONOMER.
MetaCyc:EG11085-MONOMER.
BRENDAi2.1.1.199. 2026.

Miscellaneous databases

PROiP60390.

Family and domain databases

Gene3Di1.10.150.170. 1 hit.
3.40.50.150. 2 hits.
HAMAPiMF_01007. 16SrRNA_methyltr_H. 1 hit.
InterProiIPR002903. RsmH.
IPR023397. SAM-dep_MeTrfase_MraW_recog.
IPR029063. SAM-dependent_MTases.
[Graphical view]
PANTHERiPTHR11265. PTHR11265. 1 hit.
PfamiPF01795. Methyltransf_5. 1 hit.
[Graphical view]
PIRSFiPIRSF004486. MraW. 1 hit.
SUPFAMiSSF53335. SSF53335. 2 hits.
SSF81799. SSF81799. 1 hit.
TIGRFAMsiTIGR00006. TIGR00006. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiRSMH_ECOLI
AccessioniPrimary (citable) accession number: P60390
Secondary accession number(s): P18595
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 16, 2004
Last sequence update: February 16, 2004
Last modified: November 2, 2016
This is version 113 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.