ID   RSMH_MYCSS              Reviewed;         370 AA.
AC   Q1B6W3;
DT   03-NOV-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-SEP-2014, sequence version 2.
DT   03-AUG-2022, entry version 100.
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=Mmcs_3264;
OS   Mycobacterium sp. (strain MCS).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; unclassified Mycobacterium.
OX   NCBI_TaxID=164756;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MCS;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Martinez M., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Kim E., Miller C.D., Hughes J.E., Anderson A.J., Sims R.C., Richardson P.;
RT   "Complete sequence of chromosome of Mycobacterium sp. MCS.";
RL   Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases.
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABG09371.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP000384; ABG09371.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q1B6W3; -.
DR   SMR; Q1B6W3; -.
DR   KEGG; mmc:Mmcs_3264; -.
DR   HOGENOM; CLU_038422_0_0_11; -.
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..370
FT                   /note="Ribosomal RNA small subunit methyltransferase H"
FT                   /id="PRO_0000386994"
FT   REGION          332..370
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        335..350
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         85..87
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         104
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         131
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         152
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
FT   BINDING         159
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01007"
SQ   SEQUENCE   370 AA;  39946 MW;  54DEBD36C0C028A0 CRC64;
     MKLCATSSEP ARAAWPLSEP ALAYFPDARS ASDRDLAAGA YSPGVAMEHI PVLLDRCVEL
     LTPALTRRNP DGRGAVLVDA TLGAGGHAHR FLSDLPGLHL IGLDRDPQAL QIAGERLAPF
     GDRVSLVRTR YDGIDDALAQ TGVAEVSGFL FDLGVSSMQL DRTERGFSYS ADAPLDMRMD
     SDAPLTAADV VNTFAEKDIT RILREFGEER FAARIAKHIV RRRPLNTTGE LVELLYDAIP
     APARRTGGHP AKRTFQALRI AVNSELDSLR AAVPAALAAL ETGGRIVVMA YQSLEDRIVK
     TEFAAATASR TPPGLPVELP GHEPEFVALT RGAERATPEE IERNPRSAPV RLRALEKVAG
     RPTTARRDAR