ID   RSMG_NOVAD              Reviewed;         230 AA.
AC   Q2GC39;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-MAR-2006, sequence version 1.
DT   09-APR-2025, entry version 97.
DE   RecName: Full=Ribosomal RNA small subunit methyltransferase G {ECO:0000255|HAMAP-Rule:MF_00074};
DE            EC=2.1.1.170 {ECO:0000255|HAMAP-Rule:MF_00074};
DE   AltName: Full=16S rRNA 7-methylguanosine methyltransferase {ECO:0000255|HAMAP-Rule:MF_00074};
DE            Short=16S rRNA m7G methyltransferase {ECO:0000255|HAMAP-Rule:MF_00074};
GN   Name=rsmG {ECO:0000255|HAMAP-Rule:MF_00074};
GN   OrderedLocusNames=Saro_0135;
OS   Novosphingobium aromaticivorans (strain ATCC 700278 / DSM 12444 / CCUG
OS   56034 / CIP 105152 / NBRC 16084 / F199).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC   Sphingomonadales; Sphingomonadaceae; Novosphingobium.
OX   NCBI_TaxID=279238;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700278 / DSM 12444 / CCUG 56034 / CIP 105152 / NBRC 16084
RC   / F199;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M.,
RA   Vergez L., Schmutz J., Larimer F., Land M., Kyrpides N., Ivanova N.,
RA   Fredrickson J., Balkwill D., Romine M.F., Richardson P.;
RT   "Complete sequence of Novosphingobium aromaticivorans DSM 12444.";
RL   Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Specifically methylates the N7 position of guanine in
CC       position 527 of 16S rRNA. {ECO:0000255|HAMAP-Rule:MF_00074}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=guanosine(527) in 16S rRNA + S-adenosyl-L-methionine = N(7)-
CC         methylguanosine(527) in 16S rRNA + S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:42732, Rhea:RHEA-COMP:10209, Rhea:RHEA-COMP:10210,
CC         ChEBI:CHEBI:57856, ChEBI:CHEBI:59789, ChEBI:CHEBI:74269,
CC         ChEBI:CHEBI:74480; EC=2.1.1.170; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00074};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00074}.
CC   -!- SIMILARITY: Belongs to the methyltransferase superfamily. RNA
CC       methyltransferase RsmG family. {ECO:0000255|HAMAP-Rule:MF_00074}.
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DR   EMBL; CP000248; ABD24584.1; -; Genomic_DNA.
DR   RefSeq; WP_011443798.1; NC_007794.1.
DR   AlphaFoldDB; Q2GC39; -.
DR   SMR; Q2GC39; -.
DR   STRING; 279238.Saro_0135; -.
DR   KEGG; nar:Saro_0135; -.
DR   eggNOG; COG0357; Bacteria.
DR   HOGENOM; CLU_065341_1_1_5; -.
DR   Proteomes; UP000009134; Chromosome.
DR   GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR   GO; GO:0070043; F:rRNA (guanine-N7-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd02440; AdoMet_MTases; 1.
DR   Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR   HAMAP; MF_00074; 16SrRNA_methyltr_G; 1.
DR   InterPro; IPR003682; rRNA_ssu_MeTfrase_G.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   NCBIfam; TIGR00138; rsmG_gidB; 1.
DR   PANTHER; PTHR31760; S-ADENOSYL-L-METHIONINE-DEPENDENT METHYLTRANSFERASES SUPERFAMILY PROTEIN; 1.
DR   PANTHER; PTHR31760:SF0; S-ADENOSYL-L-METHIONINE-DEPENDENT METHYLTRANSFERASES SUPERFAMILY PROTEIN; 1.
DR   Pfam; PF02527; GidB; 1.
DR   SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..230
FT                   /note="Ribosomal RNA small subunit methyltransferase G"
FT                   /id="PRO_0000335387"
FT   BINDING         80
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00074"
FT   BINDING         85
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00074"
FT   BINDING         131..132
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00074"
FT   BINDING         145
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00074"
SQ   SEQUENCE   230 AA;  25305 MW;  E226713AF1608F88 CRC64;
     MTLVTEVEAQ AWLREVLHVD DASMSRLAHL VDLLLAENER QNLVARGTLP HVWVRHIVDS
     AQLLHVSRET SGSGEWLDLG TGAGFPGLVI AAIQSDRPVT LVDSRRLRTE WLQRAADALE
     LSNVRVILSR VEDLESGAYA AISARAFAPL DKLLAISARF STPDTLWLLP KGAGAQHELQ
     MLPESWHHMF HVEQSLTDPA AGIIVGRLLA GKQPAPHVSR QQAPRKGKRT
//