ID   RSMH_LIMRD              Reviewed;         318 AA.
AC   A5VJ28;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-2007, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=Ribosomal RNA small subunit methyltransferase H {ECO:0000255|HAMAP-Rule:MF_01007};
DE            EC=2.1.1.199 {ECO:0000255|HAMAP-Rule:MF_01007};
DE   AltName: Full=16S rRNA m(4)C1402 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01007};
DE   AltName: Full=rRNA (cytosine-N(4)-)-methyltransferase RsmH {ECO:0000255|HAMAP-Rule:MF_01007};
GN   Name=rsmH {ECO:0000255|HAMAP-Rule:MF_01007}; Synonyms=mraW;
GN   OrderedLocusNames=Lreu_0585;
OS   Limosilactobacillus reuteri (strain DSM 20016) (Lactobacillus reuteri).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Limosilactobacillus.
OX   NCBI_TaxID=557436;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 20016;
RX   PubMed=21379339; DOI=10.1371/journal.pgen.1001314;
RA   Frese S.A., Benson A.K., Tannock G.W., Loach D.M., Kim J., Zhang M.,
RA   Oh P.L., Heng N.C., Patil P.B., Juge N., Mackenzie D.A., Pearson B.M.,
RA   Lapidus A., Dalin E., Tice H., Goltsman E., Land M., Hauser L., Ivanova N.,
RA   Kyrpides N.C., Walter J.;
RT   "The evolution of host specialization in the vertebrate gut symbiont
RT   Lactobacillus reuteri.";
RL   PLoS Genet. 7:E1001314-E1001314(2011).
CC   -!- FUNCTION: Specifically methylates the N4 position of cytidine in
CC       position 1402 (C1402) of 16S rRNA. {ECO:0000255|HAMAP-Rule:MF_01007}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cytidine(1402) in 16S rRNA + S-adenosyl-L-methionine = H(+) +
CC         N(4)-methylcytidine(1402) in 16S rRNA + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:42928, Rhea:RHEA-COMP:10286, Rhea:RHEA-COMP:10287,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74506, ChEBI:CHEBI:82748; EC=2.1.1.199;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01007};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01007}.
CC   -!- SIMILARITY: Belongs to the methyltransferase superfamily. RsmH family.
CC       {ECO:0000255|HAMAP-Rule:MF_01007}.
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DR   EMBL; CP000705; ABQ82852.1; -; Genomic_DNA.
DR   RefSeq; WP_003668328.1; NZ_AZDD01000002.1.
DR   AlphaFoldDB; A5VJ28; -.
DR   SMR; A5VJ28; -.
DR   STRING; 557436.Lreu_0585; -.
DR   EnsemblBacteria; ABQ82852; ABQ82852; Lreu_0585.
DR   GeneID; 66470738; -.
DR   KEGG; lre:Lreu_0585; -.
DR   PATRIC; fig|557436.17.peg.657; -.
DR   eggNOG; COG0275; Bacteria.
DR   HOGENOM; CLU_038422_2_0_9; -.
DR   OMA; NPAKRTF; -.
DR   Proteomes; UP000001991; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0071424; F:rRNA (cytosine-N4-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0070475; P:rRNA base methylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.150.170; -; 1.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_01007; 16SrRNA_methyltr_H; 1.
DR   InterPro; IPR002903; RsmH.
DR   InterPro; IPR023397; SAM-dep_MeTrfase_MraW_recog.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   PANTHER; PTHR11265; PTHR11265; 1.
DR   Pfam; PF01795; Methyltransf_5; 1.
DR   PIRSF; PIRSF004486; MraW; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   SUPFAM; SSF81799; SSF81799; 1.
DR   TIGRFAMs; TIGR00006; TIGR00006; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..318
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000386947"
FT   BINDING         34..36
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         53
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         82
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         103
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         110
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
SQ   SEQUENCE   318 AA;  35667 MW;  3904259E0D4185D7 CRC64;
     MAEFKHVTVL LKEAVAGLNV QPTGTYVDAT LGGGGHTQAI LQQLVDGHLY SFDQDQTAID
     YNKEHLKTAI EQQKLTLVED NFRNLKAELN SYNVKHVNGI LYDLGVSSPQ FDDAKRGFSY
     QHDAPLDMRM NQEQKLSAME VVNEWPYERL VKILYRYGEE KFAKSIARKI EQRRKVAPIK
     TTFELVDVIK EGIPAAARRH GGHPAKKSFQ AIRIAVNDEL GALEESLEQA LDLLDVGGRI
     SVITFQSLED RLVKTMFREK TSLSGDVPQG LPVIPAGMEP NFKLINKKPI VASDEELAAN
     HRAHSAKLRI IEKIREGK