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RSMA_CARHZ
ID   RSMA_CARHZ              Reviewed;         291 AA.
AC   Q3A8X5;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Ribosomal RNA small subunit methyltransferase A {ECO:0000255|HAMAP-Rule:MF_00607};
DE            EC=2.1.1.182 {ECO:0000255|HAMAP-Rule:MF_00607};
DE   AltName: Full=16S rRNA (adenine(1518)-N(6)/adenine(1519)-N(6))-dimethyltransferase {ECO:0000255|HAMAP-Rule:MF_00607};
DE   AltName: Full=16S rRNA dimethyladenosine transferase {ECO:0000255|HAMAP-Rule:MF_00607};
DE   AltName: Full=16S rRNA dimethylase {ECO:0000255|HAMAP-Rule:MF_00607};
DE   AltName: Full=S-adenosylmethionine-6-N', N'-adenosyl(rRNA) dimethyltransferase {ECO:0000255|HAMAP-Rule:MF_00607};
GN   Name=rsmA {ECO:0000255|HAMAP-Rule:MF_00607};
GN   Synonyms=ksgA {ECO:0000255|HAMAP-Rule:MF_00607};
GN   OrderedLocusNames=CHY_2616;
OS   Carboxydothermus hydrogenoformans (strain ATCC BAA-161 / DSM 6008 /
OS   Z-2901).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacteraceae; Carboxydothermus.
OX   NCBI_TaxID=246194;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-161 / DSM 6008 / Z-2901;
RX   PubMed=16311624; DOI=10.1371/journal.pgen.0010065;
RA   Wu M., Ren Q., Durkin A.S., Daugherty S.C., Brinkac L.M., Dodson R.J.,
RA   Madupu R., Sullivan S.A., Kolonay J.F., Nelson W.C., Tallon L.J.,
RA   Jones K.M., Ulrich L.E., Gonzalez J.M., Zhulin I.B., Robb F.T., Eisen J.A.;
RT   "Life in hot carbon monoxide: the complete genome sequence of
RT   Carboxydothermus hydrogenoformans Z-2901.";
RL   PLoS Genet. 1:563-574(2005).
CC   -!- FUNCTION: Specifically dimethylates two adjacent adenosines (A1518 and
CC       A1519) in the loop of a conserved hairpin near the 3'-end of 16S rRNA
CC       in the 30S particle. May play a critical role in biogenesis of 30S
CC       subunits. {ECO:0000255|HAMAP-Rule:MF_00607}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(1518)/adenosine(1519) in 16S rRNA + 4 S-adenosyl-L-
CC         methionine = 4 H(+) + N(6)-dimethyladenosine(1518)/N(6)-
CC         dimethyladenosine(1519) in 16S rRNA + 4 S-adenosyl-L-homocysteine;
CC         Xref=Rhea:RHEA:19609, Rhea:RHEA-COMP:10232, Rhea:RHEA-COMP:10233,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74411, ChEBI:CHEBI:74493; EC=2.1.1.182;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00607};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00607}.
CC   -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC       superfamily. rRNA adenine N(6)-methyltransferase family. RsmA
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00607}.
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DR   EMBL; CP000141; ABB14136.1; -; Genomic_DNA.
DR   RefSeq; WP_011345482.1; NC_007503.1.
DR   AlphaFoldDB; Q3A8X5; -.
DR   SMR; Q3A8X5; -.
DR   STRING; 246194.CHY_2616; -.
DR   EnsemblBacteria; ABB14136; ABB14136; CHY_2616.
DR   KEGG; chy:CHY_2616; -.
DR   eggNOG; COG0030; Bacteria.
DR   HOGENOM; CLU_041220_0_0_9; -.
DR   OMA; KEEEPYF; -.
DR   OrthoDB; 2030110at2; -.
DR   Proteomes; UP000002706; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0052908; F:16S rRNA (adenine(1518)-N(6)/adenine(1519)-N(6))-dimethyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.8.100; -; 1.
DR   Gene3D; 3.40.50.150; -; 1.
DR   HAMAP; MF_00607; 16SrRNA_methyltr_A; 1.
DR   InterPro; IPR001737; KsgA/Erm.
DR   InterPro; IPR023165; rRNA_Ade_diMease-like_C.
DR   InterPro; IPR020596; rRNA_Ade_Mease_Trfase_CS.
DR   InterPro; IPR020598; rRNA_Ade_methylase_Trfase_N.
DR   InterPro; IPR011530; rRNA_adenine_dimethylase.
DR   InterPro; IPR029063; SAM-dependent_MTases_sf.
DR   PANTHER; PTHR11727; PTHR11727; 1.
DR   Pfam; PF00398; RrnaAD; 1.
DR   SMART; SM00650; rADc; 1.
DR   SUPFAM; SSF53335; SSF53335; 1.
DR   TIGRFAMs; TIGR00755; ksgA; 1.
DR   PROSITE; PS01131; RRNA_A_DIMETH; 1.
DR   PROSITE; PS51689; SAM_RNA_A_N6_MT; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Reference proteome; RNA-binding;
KW   rRNA processing; S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..291
FT                   /note="Ribosomal RNA small subunit methyltransferase A"
FT                   /id="PRO_0000257268"
FT   BINDING         27
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT   BINDING         29
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT   BINDING         54
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT   BINDING         75
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT   BINDING         100
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT   BINDING         130
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
SQ   SEQUENCE   291 AA;  32351 MW;  EFD4034D60CD548B CRC64;
     MNLWSPTTLK EILARHNLTL SHGLGQHFLT DFGILAKIVE KAEITKDDAV LEIGPGAGVL
     TRLLAQAAKY VVAIEIDKKL LPVLAETTGD LGNVVVVNAD AREINFDRVM AEQTGGEFGF
     EGKPYLIVAN LPYYATSPLI FKVFEEGYKV SSMTLMMQKE VAERITAKPG SKIYGSLSVA
     CQYFSEPRIV LKVPRTVFFP PPEVESAVVR FTLKENSLTS EERLKFFQIV RAAFATRRKT
     IAKSLSGALN LKRNYVEEVL LKVGIKPDLR AEQIPPESFY RLSQEVVGGK W
 
 
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