ID   RSMH_BARHE              Reviewed;         346 AA.
AC   Q6G2P7;
DT   11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2004, 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=BH11320;
OS   Bartonella henselae (strain ATCC 49882 / DSM 28221 / Houston 1)
OS   (Rochalimaea henselae).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bartonellaceae; Bartonella.
OX   NCBI_TaxID=283166;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49882 / DSM 28221 / Houston 1;
RX   PubMed=15210978; DOI=10.1073/pnas.0305659101;
RA   Alsmark U.C.M., Frank A.C., Karlberg E.O., Legault B.-A., Ardell D.H.,
RA   Canbaeck B., Eriksson A.-S., Naeslund A.K., Handley S.A., Huvet M.,
RA   La Scola B., Holmberg M., Andersson S.G.E.;
RT   "The louse-borne human pathogen Bartonella quintana is a genomic derivative
RT   of the zoonotic agent Bartonella henselae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9716-9721(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; BX897699; CAF27917.1; -; Genomic_DNA.
DR   RefSeq; WP_011180980.1; NZ_LRIJ02000001.1.
DR   AlphaFoldDB; Q6G2P7; -.
DR   SMR; Q6G2P7; -.
DR   STRING; 283166.BH11320; -.
DR   PaxDb; Q6G2P7; -.
DR   PRIDE; Q6G2P7; -.
DR   EnsemblBacteria; CAF27917; CAF27917; BH11320.
DR   KEGG; bhe:BH11320; -.
DR   eggNOG; COG0275; Bacteria.
DR   OMA; NPAKRTF; -.
DR   Proteomes; UP000000421; 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; rRNA processing; S-adenosyl-L-methionine;
KW   Transferase.
FT   CHAIN           1..346
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000108580"
FT   BINDING         53..55
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         70
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         97
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         114
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         121
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
SQ   SEQUENCE   346 AA;  38656 MW;  F008CBE2882DF8D3 CRC64;
     MAIDLKKHKS RRIILTKQGK RTERHIPVLL QPVLAGLIPL VGAKVIDGTF GAGGYTRALL
     NAGAQVIALD RDPHAIREGQ SLVDEFFPRL RLVQGNFSQL DCVVEEKVDA VILDIGVSSM
     QLDEAERGFS FQKDGPLDMR MAQTGFTAAD VVNRLKSDEL ARIFKILGEE RYARRIARMI
     EKRRCVQPFL RTGDLAHAIE VLVGRKSGER IHPATRVFQA LRIYVNDEIG ELARGLFAAE
     RVLKPGGRLG VVSFHSLEDR MVKRFFSARS GESVRSRYLP EIEMAPATFF PLFKGGITAN
     KEELERNPRS RSARLRIGVR TEAECLFADM KLFGLAKIAS FEGGKK