ID   RSMH_STRU0              Reviewed;         316 AA.
AC   B9DV78;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 77.
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=SUB1421;
OS   Streptococcus uberis (strain ATCC BAA-854 / 0140J).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=218495;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-854 / 0140J;
RX   PubMed=19175920; DOI=10.1186/1471-2164-10-54;
RA   Ward P.N., Holden M.T.G., Leigh J.A., Lennard N., Bignell A., Barron A.,
RA   Clark L., Quail M.A., Woodward J., Barrell B.G., Egan S.A., Field T.R.,
RA   Maskell D., Kehoe M., Dowson C.G., Chanter N., Whatmore A.M., Bentley S.D.,
RA   Parkhill J.;
RT   "Evidence for niche adaptation in the genome of the bovine pathogen
RT   Streptococcus uberis.";
RL   BMC Genomics 10:54-54(2009).
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; AM946015; CAR43080.1; -; Genomic_DNA.
DR   RefSeq; WP_015911741.1; NC_012004.1.
DR   AlphaFoldDB; B9DV78; -.
DR   SMR; B9DV78; -.
DR   STRING; 218495.SUB1421; -.
DR   EnsemblBacteria; CAR43080; CAR43080; SUB1421.
DR   KEGG; sub:SUB1421; -.
DR   eggNOG; COG0275; Bacteria.
DR   HOGENOM; CLU_038422_2_0_9; -.
DR   OMA; NPAKRTF; -.
DR   OrthoDB; 1272633at2; -.
DR   Proteomes; UP000000449; 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..316
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000387171"
FT   BINDING         35..37
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         55
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         84
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         105
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         112
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
SQ   SEQUENCE   316 AA;  35746 MW;  11C35A5468B8BEDF CRC64;
     MTKEFHHITV LLHETVDMLD IKPDGIYVDA TLGGAGHSSY LLSKLNDNGH LYCFDQDQKA
     IDNAQVFLKS YVDRGMVTFI KANFRHLKSE LNALGVTEID GILYDLGVSS PQLDERERGF
     SYKQDAPLDM RMDSDAALTA YHVVNDYPFQ DLVRIFFKYG EDKFSKQIAR KIEQARAIKP
     IETTAELAEI IKSAKPAKEL KKKGHPAKQI FQAIRIEVND ELGAADESIQ EAMTMLALNG
     RISVITFHSL EDRLTKQLFK EASTVDVPKG IPFIPEDMQP KFELVTRKPI LPSQEELLAN
     NRAHSAKLRV ARKVRM