ID   RSMH_ACIAD              Reviewed;         303 AA.
AC   Q6F7D1;
DT   11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 102.
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=ACIAD3368;
OS   Acinetobacter baylyi (strain ATCC 33305 / BD413 / ADP1).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter.
OX   NCBI_TaxID=62977;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33305 / BD413 / ADP1;
RX   PubMed=15514110; DOI=10.1093/nar/gkh910;
RA   Barbe V., Vallenet D., Fonknechten N., Kreimeyer A., Oztas S., Labarre L.,
RA   Cruveiller S., Robert C., Duprat S., Wincker P., Ornston L.N.,
RA   Weissenbach J., Marliere P., Cohen G.N., Medigue C.;
RT   "Unique features revealed by the genome sequence of Acinetobacter sp. ADP1,
RT   a versatile and naturally transformation competent bacterium.";
RL   Nucleic Acids Res. 32:5766-5779(2004).
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; CR543861; CAG70034.1; -; Genomic_DNA.
DR   RefSeq; WP_004923689.1; NC_005966.1.
DR   AlphaFoldDB; Q6F7D1; -.
DR   SMR; Q6F7D1; -.
DR   STRING; 62977.ACIAD3368; -.
DR   EnsemblBacteria; CAG70034; CAG70034; ACIAD3368.
DR   GeneID; 45235562; -.
DR   KEGG; aci:ACIAD3368; -.
DR   eggNOG; COG0275; Bacteria.
DR   HOGENOM; CLU_038422_2_0_6; -.
DR   OMA; NPAKRTF; -.
DR   OrthoDB; 1272633at2; -.
DR   BioCyc; ASP62977:ACIAD_RS15235-MON; -.
DR   Proteomes; UP000000430; 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..303
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000108563"
FT   BINDING         32..34
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         52
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         78
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         99
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         106
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
SQ   SEQUENCE   303 AA;  34201 MW;  9496D9BDC14E2733 CRC64;
     MSHISVLLHE TVDALLANRD TGIYIDGTFG RGGHTRLLLS KLGSDAQVYG FDKDPQALAV
     AHQLEQEDLR FKIIHASFAD IQTELEQRGI TQVEGVMADL GVSSPQLDQA ERGFSFMQDG
     PLDMRMDNSQ GKTAAEWLLS IEEEALANII YQYGEERYSR RIARAIKQAG ALETTAQLAE
     LVKTAHPKWE KHKHPATRTF QAIRIAINKE LEDIEIFLPQ AVTLLKPEGR LAVITFHSLE
     DRLIKQFIQK ESTLPEDSGW GLPQKQVDSR RLKKISRIRA SEEEVKANPR SRSAWLRVAE
     RLV