RSMA_ALKMQ
ID RSMA_ALKMQ Reviewed; 287 AA.
AC A6TJK9;
DT 05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-AUG-2007, sequence version 1.
DT 03-AUG-2022, entry version 85.
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=Amet_0138;
OS Alkaliphilus metalliredigens (strain QYMF).
OC Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC Alkaliphilus.
OX NCBI_TaxID=293826;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=QYMF;
RX PubMed=27811105; DOI=10.1128/genomea.01226-16;
RA Hwang C., 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 Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F.,
RA Land M.L., Hauser L., Kyrpides N., Mikhailova N., Ye Q., Zhou J.,
RA Richardson P., Fields M.W.;
RT "Complete genome sequence of Alkaliphilus metalliredigens strain QYMF, an
RT alkaliphilic and metal-reducing bacterium isolated from borax-contaminated
RT leachate ponds.";
RL Genome Announc. 4:0-0(2016).
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; CP000724; ABR46377.1; -; Genomic_DNA.
DR RefSeq; WP_011971286.1; NC_009633.1.
DR AlphaFoldDB; A6TJK9; -.
DR SMR; A6TJK9; -.
DR STRING; 293826.Amet_0138; -.
DR EnsemblBacteria; ABR46377; ABR46377; Amet_0138.
DR KEGG; amt:Amet_0138; -.
DR eggNOG; COG0030; Bacteria.
DR HOGENOM; CLU_041220_0_0_9; -.
DR OMA; KEEEPYF; -.
DR OrthoDB; 2030110at2; -.
DR Proteomes; UP000001572; 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..287
FT /note="Ribosomal RNA small subunit methyltransferase A"
FT /id="PRO_1000061277"
FT BINDING 28
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT BINDING 30
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT BINDING 55
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT BINDING 76
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT BINDING 101
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
FT BINDING 125
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00607"
SQ SEQUENCE 287 AA; 32212 MW; 83346BA66D7A0662 CRC64;
MDKIVSPSKT KAIVEKYKFR FSKSLGQNFL IDQNILEDIV DGADIQPDDC VIEIGPGIGT
LTQFIAEKAH KVVAIEIDRN LIPILKHTLA DYQNVEVINQ DVLKVDLHQL IADKFEGKPV
KVIANLPYYV TTPIVMRFLE EKVPVDSLVI MIQKEVAVRM QAGPGTKDYG ALSIAVQYYC
NPEILLKVPP SVFIPQPKVE SIVIKLQVYP EPKVKVERDD LMFALVKDAF GKRRKTLLNA
LSSGLLQLSK EIVRESLEAA NIDENRRGET LTIEEYATLT KEVAARQ
