ID   RSMI_ERYLH              Reviewed;         281 AA.
AC   Q2NAK3;
DT   15-JUN-2010, integrated into UniProtKB/Swiss-Prot.
DT   15-JUN-2010, sequence version 2.
DT   03-AUG-2022, entry version 82.
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=ELI_05980;
OS   Erythrobacter litoralis (strain HTCC2594).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales;
OC   Erythrobacteraceae; Erythrobacter/Porphyrobacter group; Erythrobacter.
OX   NCBI_TaxID=314225;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HTCC2594;
RX   PubMed=19168610; DOI=10.1128/jb.00026-09;
RA   Oh H.M., Giovannoni S.J., Ferriera S., Johnson J., Cho J.C.;
RT   "Complete genome sequence of Erythrobacter litoralis HTCC2594.";
RL   J. Bacteriol. 191:2419-2420(2009).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABC63288.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP000157; ABC63288.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041685125.1; NC_007722.1.
DR   AlphaFoldDB; Q2NAK3; -.
DR   SMR; Q2NAK3; -.
DR   STRING; 314225.ELI_05980; -.
DR   EnsemblBacteria; ABC63288; ABC63288; ELI_05980.
DR   KEGG; eli:ELI_05980; -.
DR   eggNOG; COG0313; Bacteria.
DR   HOGENOM; CLU_044779_2_1_5; -.
DR   OrthoDB; 1059309at2; -.
DR   Proteomes; UP000008808; 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..281
FT                   /note="Ribosomal RNA small subunit methyltransferase I"
FT                   /id="PRO_0000394486"
SQ   SEQUENCE   281 AA;  30397 MW;  34D3C9C2721EC4BC CRC64;
     MQHDHSAEPL SPGLYIVATP IGNLGDITLR AIETLRRCDA VACEDTRMTG KLLKHLGISK
     SLWRYDDHSD AKAREKIVAA ISEKAVALVS DAGTPLISDP GYRLVRDARD ASLPVTTIPG
     ACAAIAGLTL SGLPSDRFLF AGFLPVKDKA RREMLEKLAP VDASLIFYET GPRLLKSLAA
     IDEMLPNREI SVARELTKLH EECRRGMGAG LMAHYQANPP KGEIVLMVGP PPEAAPDDTD
     AELMLREALE TMKPSQAAGH VAKATGLDRK DLYSRALELK T