ID   RLMM_STRMK              Reviewed;         355 AA.
AC   B2FPH5;
DT   24-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Ribosomal RNA large subunit methyltransferase M {ECO:0000255|HAMAP-Rule:MF_01551};
DE            EC=2.1.1.186 {ECO:0000255|HAMAP-Rule:MF_01551};
DE   AltName: Full=23S rRNA (cytidine2498-2'-O)-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01551};
DE   AltName: Full=23S rRNA 2'-O-ribose methyltransferase RlmM {ECO:0000255|HAMAP-Rule:MF_01551};
GN   Name=rlmM {ECO:0000255|HAMAP-Rule:MF_01551}; OrderedLocusNames=Smlt0828;
OS   Stenotrophomonas maltophilia (strain K279a).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Stenotrophomonas; Stenotrophomonas maltophilia group.
OX   NCBI_TaxID=522373;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K279a;
RX   PubMed=18419807; DOI=10.1186/gb-2008-9-4-r74;
RA   Crossman L.C., Gould V.C., Dow J.M., Vernikos G.S., Okazaki A.,
RA   Sebaihia M., Saunders D., Arrowsmith C., Carver T., Peters N., Adlem E.,
RA   Kerhornou A., Lord A., Murphy L., Seeger K., Squares R., Rutter S.,
RA   Quail M.A., Rajandream M.A., Harris D., Churcher C., Bentley S.D.,
RA   Parkhill J., Thomson N.R., Avison M.B.;
RT   "The complete genome, comparative and functional analysis of
RT   Stenotrophomonas maltophilia reveals an organism heavily shielded by drug
RT   resistance determinants.";
RL   Genome Biol. 9:R74.1-R74.13(2008).
CC   -!- FUNCTION: Catalyzes the 2'-O-methylation at nucleotide C2498 in 23S
CC       rRNA. {ECO:0000255|HAMAP-Rule:MF_01551}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=cytidine(2498) in 23S rRNA + S-adenosyl-L-methionine = 2'-O-
CC         methylcytidine(2498) in 23S rRNA + H(+) + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:42788, Rhea:RHEA-COMP:10244, Rhea:RHEA-COMP:10245,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74495, ChEBI:CHEBI:82748; EC=2.1.1.186;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01551};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01551}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01551}.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. RNA methyltransferase RlmE family. RlmM subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01551}.
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DR   EMBL; AM743169; CAQ44404.1; -; Genomic_DNA.
DR   RefSeq; WP_012479201.1; NC_010943.1.
DR   AlphaFoldDB; B2FPH5; -.
DR   SMR; B2FPH5; -.
DR   STRING; 522373.Smlt0828; -.
DR   EnsemblBacteria; CAQ44404; CAQ44404; Smlt0828.
DR   KEGG; sml:Smlt0828; -.
DR   PATRIC; fig|522373.3.peg.797; -.
DR   eggNOG; COG2933; Bacteria.
DR   HOGENOM; CLU_043780_0_0_6; -.
DR   OMA; PVDWMVC; -.
DR   OrthoDB; 902245at2; -.
DR   Proteomes; UP000008840; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0008757; F:S-adenosylmethionine-dependent methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR   GO; GO:0006364; P:rRNA processing; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_01551; 23SrRNA_methyltr_M; 1.
DR   InterPro; IPR040739; RlmM_FDX.
DR   InterPro; IPR002877; RNA_MeTrfase_FtsJ_dom.
DR   InterPro; IPR011224; rRNA_MeTrfase_M.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   Pfam; PF01728; FtsJ; 1.
DR   Pfam; PF18125; RlmM_FDX; 1.
DR   PIRSF; PIRSF028774; UCP028774; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..355
FT                   /note="Ribosomal RNA large subunit methyltransferase M"
FT                   /id="PRO_0000388987"
FT   ACT_SITE        308
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
FT   BINDING         191
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
FT   BINDING         224..227
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
FT   BINDING         243
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
FT   BINDING         263
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
FT   BINDING         279
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01551"
SQ   SEQUENCE   355 AA;  39846 MW;  15E2A5C643A51CEF CRC64;
     MAPVTDTGIG LLCLCRQGFE PELAGELQFR AGEAGFAGYA RTQRNDGYVL FMCDEAAALA
     PRLRWRELIF ARQKLVVLAE LPQLDPADRI TPMLDVLADA PRFGDLWVEH PDSDAGKPLS
     GLARAFGNAL RPALRKAGKL TDKPNNRLPR LHVVFVDGTH AFVCVADPAD SAPWALGIPR
     LKLLPEAPSR SALKLDEALL TLLMPEEREA LAKPGMRAAD LGAAPGGWTW VLTRQHMHVL
     SIDNGPLRQH VLDTGLVEHL RADGFHWHPE QPLDWMVCDM VEQPRRVAER MATWFREGWC
     RHAIFNLKLP MKKRWDETRL CLDLFQDQAG KPLVVRAKQL YHDREEITVL ASPLR