ID   RSMH_OPITP              Reviewed;         306 AA.
AC   B1ZU25;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, 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=Oter_2626;
OS   Opitutus terrae (strain DSM 11246 / JCM 15787 / PB90-1).
OC   Bacteria; Verrucomicrobia; Opitutae; Opitutales; Opitutaceae; Opitutus.
OX   NCBI_TaxID=452637;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 11246 / JCM 15787 / PB90-1;
RX   PubMed=21398538; DOI=10.1128/jb.00228-11;
RA   van Passel M.W., Kant R., Palva A., Copeland A., Lucas S., Lapidus A.,
RA   Glavina del Rio T., Pitluck S., Goltsman E., Clum A., Sun H., Schmutz J.,
RA   Larimer F.W., Land M.L., Hauser L., Kyrpides N., Mikhailova N.,
RA   Richardson P.P., Janssen P.H., de Vos W.M., Smidt H.;
RT   "Genome sequence of the verrucomicrobium Opitutus terrae PB90-1, an
RT   abundant inhabitant of rice paddy soil ecosystems.";
RL   J. Bacteriol. 193:2367-2368(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; CP001032; ACB75907.1; -; Genomic_DNA.
DR   AlphaFoldDB; B1ZU25; -.
DR   SMR; B1ZU25; -.
DR   STRING; 452637.Oter_2626; -.
DR   EnsemblBacteria; ACB75907; ACB75907; Oter_2626.
DR   KEGG; ote:Oter_2626; -.
DR   eggNOG; COG0275; Bacteria.
DR   HOGENOM; CLU_038422_3_0_0; -.
DR   OMA; NPAKRTF; -.
DR   Proteomes; UP000007013; 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..306
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000387016"
FT   REGION          280..306
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         33..35
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         79
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         96
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"
SQ   SEQUENCE   306 AA;  33675 MW;  1BAD8D011C60004B CRC64;
     MTPGHQPVLL REVLGFLAPR ARGRYLDCTF GGGGHTRALL EAAAEVRVVA LDRDPAAQPR
     AAALRETFGE RFEFIDRDFG RLAELPHEGF DGVLFDFGVS SFQLDETERG FSFRHDAPAD
     MRMDPRSGVP ASQWLETATE EMLVRAIRDF GEEQHWRRIV RAIRDARGTG ALARTASLAE
     LIAAAIPACD RHAAKIHPAT RAFQGVRIAV NDEIGAIERA LPAAFAKLAP GGVLCVISFH
     SLEDRPAKQF FRRMCGQPES AADATPQDLR VKLADPLTRR PVTPADDELA ANPRSRSAKL
     RALRRL