ID A0A0M3TBI0_9ACTN Unreviewed; 297 AA.
AC A0A0M3TBI0;
DT 09-DEC-2015, integrated into UniProtKB/TrEMBL.
DT 09-DEC-2015, sequence version 1.
DT 27-MAR-2024, entry version 38.
DE RecName: Full=Ribosomal RNA small subunit methyltransferase A {ECO:0000256|HAMAP-Rule:MF_00607};
DE EC=2.1.1.182 {ECO:0000256|HAMAP-Rule:MF_00607};
DE AltName: Full=16S rRNA (adenine(1518)-N(6)/adenine(1519)-N(6))-dimethyltransferase {ECO:0000256|HAMAP-Rule:MF_00607};
DE AltName: Full=16S rRNA dimethyladenosine transferase {ECO:0000256|HAMAP-Rule:MF_00607};
DE AltName: Full=16S rRNA dimethylase {ECO:0000256|HAMAP-Rule:MF_00607};
DE AltName: Full=S-adenosylmethionine-6-N', N'-adenosyl(rRNA) dimethyltransferase {ECO:0000256|HAMAP-Rule:MF_00607};
GN Name=ksgA {ECO:0000256|HAMAP-Rule:MF_00607,
GN ECO:0000313|EMBL:VHO00032.1};
GN Synonyms=rsmA {ECO:0000256|HAMAP-Rule:MF_00607};
GN ORFNames=AL705_02080 {ECO:0000313|EMBL:ALE18674.1}, LC603019_00431
GN {ECO:0000313|EMBL:VHO00032.1};
OS Lawsonella clevelandensis.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Lawsonellaceae;
OC Lawsonella.
OX NCBI_TaxID=1528099 {ECO:0000313|EMBL:ALE18674.1, ECO:0000313|Proteomes:UP000068137};
RN [1] {ECO:0000313|EMBL:ALE18674.1, ECO:0000313|Proteomes:UP000068137}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=X1698 {ECO:0000313|EMBL:ALE18674.1,
RC ECO:0000313|Proteomes:UP000068137};
RX PubMed=26659691;
RA Nicholson A.C., Bell M., Humrighouse B.W., McQuiston J.R.;
RT "Complete Genome Sequences for Two Strains of a Novel Fastidious, Partially
RT Acid-Fast, Gram-Positive Corynebacterineae Bacterium, Derived from Human
RT Clinical Samples.";
RL Genome Announc. 3:e01462-15(2015).
RN [2] {ECO:0000313|EMBL:ALE18674.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=X1698 {ECO:0000313|EMBL:ALE18674.1};
RX PubMed=27130323; DOI=10.1099/ijsem.0.001122;
RA Bell M.E., Bernard K.A., Harrington S.M., Patel N.B., Tucker T.A.,
RA Metcalfe M.G., McQuiston J.R.;
RT "Lawsonella clevelandensis gen. nov., sp. nov., a new member of the
RT suborder Corynebacterineae isolated from human abscesses.";
RL Int. J. Syst. Evol. Microbiol. 66:2929-2935(2016).
RN [3] {ECO:0000313|EMBL:VHO00032.1, ECO:0000313|Proteomes:UP000324288}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=USB-603019 {ECO:0000313|EMBL:VHO00032.1};
RA Seth-Smith MB H., Seth-Smith H.;
RL Submitted (APR-2019) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-Rule:MF_00607};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|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:0000256|HAMAP-Rule:MF_00607}.
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DR EMBL; CP012390; ALE18674.1; -; Genomic_DNA.
DR EMBL; LR584267; VHO00032.1; -; Genomic_DNA.
DR RefSeq; WP_053961603.1; NZ_LR584267.1.
DR AlphaFoldDB; A0A0M3TBI0; -.
DR STRING; 1528099.AL705_02080; -.
DR GeneID; 84894420; -.
DR KEGG; cbq:AL705_02080; -.
DR PATRIC; fig|1528099.3.peg.428; -.
DR OrthoDB; 9814755at2; -.
DR Proteomes; UP000068137; Chromosome.
DR Proteomes; UP000324288; Chromosome 1.
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-UniRule.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 1.10.8.100; Ribosomal RNA adenine dimethylase-like, domain 2; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 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 NCBIfam; TIGR00755; ksgA; 1.
DR PANTHER; PTHR11727; DIMETHYLADENOSINE TRANSFERASE; 1.
DR PANTHER; PTHR11727:SF7; DIMETHYLADENOSINE TRANSFERASE-RELATED; 1.
DR Pfam; PF00398; RrnaAD; 1.
DR SMART; SM00650; rADc; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR PROSITE; PS01131; RRNA_A_DIMETH; 1.
DR PROSITE; PS51689; SAM_RNA_A_N6_MT; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00607};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_00607}; Reference proteome {ECO:0000313|Proteomes:UP000068137};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_00607};
KW rRNA processing {ECO:0000256|ARBA:ARBA00022552, ECO:0000256|HAMAP-
KW Rule:MF_00607};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW Rule:MF_00607};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00607}.
FT DOMAIN 41..218
FT /note="Ribosomal RNA adenine methylase transferase N-
FT terminal"
FT /evidence="ECO:0000259|SMART:SM00650"
FT BINDING 34
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
FT BINDING 36
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
FT BINDING 61
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
FT BINDING 82
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
FT BINDING 110
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
FT BINDING 133
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00607,
FT ECO:0000256|PROSITE-ProRule:PRU01026"
SQ SEQUENCE 297 AA; 31065 MW; 32ABD7E25A25ED1C CRC64;
MAASTSTVSL LTAPEIRALA DELGIRPTKT LGQNFVIDPN TVRRIVAAAH LAPGDTVLEI
GPGLGSLTLA LAEAGAQVTA VEIDPTLAVK LPTTFATHAP DSSLRVITKD AMQVTAEEIL
AAGHPAPTAL VANLPYNVAV PVLLHMLEIL PSLRTTLVMV QAEVADRLAA EPGSRIYGVP
SVKASFYGEV ARAGAIGRTV FWPAPNVDSG LVRISAFTPE NAPWDPYDES LHDAVWAVTD
AAFAQRRKTL RAALKKWAGS GEAATAALAA AGIDPTLRGE RLTTADYVHL AQHAGLQ
//
