ID   RSMI_RICPR              Reviewed;         280 AA.
AC   Q9ZCJ3;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   25-MAY-2022, entry version 97.
DE   RecName: Full=Ribosomal RNA small subunit methyltransferase I {ECO:0000255|HAMAP-Rule:MF_01877};
DE            EC=2.1.1.198 {ECO:0000255|HAMAP-Rule:MF_01877};
DE   AltName: Full=16S rRNA 2'-O-ribose C1402 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01877};
DE   AltName: Full=rRNA (cytidine-2'-O-)-methyltransferase RsmI {ECO:0000255|HAMAP-Rule:MF_01877};
GN   Name=rsmI {ECO:0000255|HAMAP-Rule:MF_01877}; OrderedLocusNames=RP747;
OS   Rickettsia prowazekii (strain Madrid E).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; typhus group.
OX   NCBI_TaxID=272947;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Madrid E;
RX   PubMed=9823893; DOI=10.1038/24094;
RA   Andersson S.G.E., Zomorodipour A., Andersson J.O., Sicheritz-Ponten T.,
RA   Alsmark U.C.M., Podowski R.M., Naeslund A.K., Eriksson A.-S., Winkler H.H.,
RA   Kurland C.G.;
RT   "The genome sequence of Rickettsia prowazekii and the origin of
RT   mitochondria.";
RL   Nature 396:133-140(1998).
CC   -!- FUNCTION: Catalyzes the 2'-O-methylation of the ribose of cytidine 1402
CC       (C1402) in 16S rRNA. {ECO:0000255|HAMAP-Rule:MF_01877}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cytidine(1402) in 16S rRNA + S-adenosyl-L-methionine = 2'-O-
CC         methylcytidine(1402) in 16S rRNA + H(+) + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:42924, Rhea:RHEA-COMP:10285, Rhea:RHEA-COMP:10286,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74495, ChEBI:CHEBI:82748; EC=2.1.1.198;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01877};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01877}.
CC   -!- SIMILARITY: Belongs to the methyltransferase superfamily. RsmI family.
CC       {ECO:0000255|HAMAP-Rule:MF_01877}.
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DR   EMBL; AJ235273; CAA15175.1; -; Genomic_DNA.
DR   PIR; G71634; G71634.
DR   RefSeq; NP_221099.1; NC_000963.1.
DR   RefSeq; WP_004597008.1; NC_000963.1.
DR   AlphaFoldDB; Q9ZCJ3; -.
DR   SMR; Q9ZCJ3; -.
DR   STRING; 272947.RP747; -.
DR   EnsemblBacteria; CAA15175; CAA15175; CAA15175.
DR   GeneID; 57569869; -.
DR   KEGG; rpr:RP747; -.
DR   PATRIC; fig|272947.5.peg.781; -.
DR   eggNOG; COG0313; Bacteria.
DR   HOGENOM; CLU_044779_3_0_5; -.
DR   OMA; RTMVFFE; -.
DR   Proteomes; UP000002480; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0070677; F:rRNA (cytosine-2'-O-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000453; P:enzyme-directed rRNA 2'-O-methylation; IEA:UniProtKB-UniRule.
DR   CDD; cd11648; RsmI; 1.
DR   Gene3D; 3.30.950.10; -; 1.
DR   Gene3D; 3.40.1010.10; -; 1.
DR   HAMAP; MF_01877; 16SrRNA_methyltr_I; 1.
DR   InterPro; IPR000878; 4pyrrol_Mease.
DR   InterPro; IPR035996; 4pyrrol_Methylase_sf.
DR   InterPro; IPR014777; 4pyrrole_Mease_sub1.
DR   InterPro; IPR014776; 4pyrrole_Mease_sub2.
DR   InterPro; IPR008189; rRNA_ssu_MeTfrase_I.
DR   InterPro; IPR018063; SAM_MeTrfase_RsmI_CS.
DR   PANTHER; PTHR46111; PTHR46111; 1.
DR   Pfam; PF00590; TP_methylase; 1.
DR   PIRSF; PIRSF005917; MTase_YraL; 1.
DR   SUPFAM; SSF53790; SSF53790; 1.
DR   TIGRFAMs; TIGR00096; TIGR00096; 1.
DR   PROSITE; PS01296; RSMI; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..280
FT                   /note="Ribosomal RNA small subunit methyltransferase I"
FT                   /id="PRO_0000211953"
SQ   SEQUENCE   280 AA;  31844 MW;  65C1E8FE6F723787 CRC64;
     MILKSGLYIV STPIGNFEDI TLRAISTLKN SDIILCEDTR ISQKLLAKHY IHTKLQIYND
     HSDYKDREYI ISLIKAGNVV SLISDAGTPL ISDPGYKLVR DLRNLNYYIE VVPGVSSPIT
     ALTLSSLPTD RFLFSGFLPK TIESKKKIFA ELVNLKATLI FFDTASRLIN TLLLAKEIFG
     NREICVAREL TKIYQETKTG DIDEIIEFYK NNILKGEIVL LISGNVQVQN KQINLEKFIE
     FCLSKNLSSK TIIELAYDKF KDVYSKKEIY SVVHKKKFTA