ID A0A4Q1JU49_9GAMM Unreviewed; 430 AA.
AC A0A4Q1JU49;
DT 31-JUL-2019, integrated into UniProtKB/TrEMBL.
DT 31-JUL-2019, sequence version 1.
DT 27-MAR-2024, entry version 16.
DE RecName: Full=16S rRNA (cytosine(967)-C(5))-methyltransferase {ECO:0000256|ARBA:ARBA00012140};
DE EC=2.1.1.176 {ECO:0000256|ARBA:ARBA00012140};
DE AltName: Full=16S rRNA m5C967 methyltransferase {ECO:0000256|ARBA:ARBA00030399};
DE AltName: Full=rRNA (cytosine-C(5)-)-methyltransferase RsmB {ECO:0000256|ARBA:ARBA00031088};
GN Name=rsmB {ECO:0000313|EMBL:RXR01988.1};
GN ORFNames=EPA99_15095 {ECO:0000313|EMBL:RXR01988.1};
OS Pseudoxanthomonas composti.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Pseudoxanthomonas.
OX NCBI_TaxID=2137479 {ECO:0000313|EMBL:RXR01988.1, ECO:0000313|Proteomes:UP000289784};
RN [1] {ECO:0000313|EMBL:RXR01988.1, ECO:0000313|Proteomes:UP000289784}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GSS15 {ECO:0000313|EMBL:RXR01988.1,
RC ECO:0000313|Proteomes:UP000289784};
RA Yang G.;
RT "Pseudoxanthomonas composti sp. nov., isolated from compost.";
RL Submitted (JAN-2019) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Specifically methylates the cytosine at position 967 (m5C967)
CC of 16S rRNA. {ECO:0000256|ARBA:ARBA00002724}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=cytidine(967) in 16S rRNA + S-adenosyl-L-methionine = 5-
CC methylcytidine(967) in 16S rRNA + H(+) + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:42748, Rhea:RHEA-COMP:10219, Rhea:RHEA-COMP:10220,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC ChEBI:CHEBI:74483, ChEBI:CHEBI:82748; EC=2.1.1.176;
CC Evidence={ECO:0000256|ARBA:ARBA00000588};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496}.
CC -!- SIMILARITY: Belongs to the class I-like SAM-binding methyltransferase
CC superfamily. RsmB/NOP family. {ECO:0000256|ARBA:ARBA00007494,
CC ECO:0000256|PROSITE-ProRule:PRU01023}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:RXR01988.1}.
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DR EMBL; SAWZ01000009; RXR01988.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A4Q1JU49; -.
DR OrthoDB; 9810297at2; -.
DR Proteomes; UP000289784; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008649; F:rRNA methyltransferase activity; IEA:InterPro.
DR GO; GO:0006355; P:regulation of DNA-templated transcription; IEA:InterPro.
DR CDD; cd02440; AdoMet_MTases; 1.
DR Gene3D; 1.10.940.10; NusB-like; 1.
DR Gene3D; 3.40.50.150; Vaccinia Virus protein VP39; 1.
DR InterPro; IPR018314; Fmu/NOL1/Nop2p_CS.
DR InterPro; IPR049560; MeTrfase_RsmB-F_NOP2_cat.
DR InterPro; IPR001678; MeTrfase_RsmB-F_NOP2_dom.
DR InterPro; IPR035926; NusB-like_sf.
DR InterPro; IPR006027; NusB_RsmB_TIM44.
DR InterPro; IPR023267; RCMT.
DR InterPro; IPR004573; rRNA_ssu_MeTfrase_B.
DR InterPro; IPR029063; SAM-dependent_MTases_sf.
DR NCBIfam; TIGR00563; rsmB; 1.
DR PANTHER; PTHR22807:SF61; NOL1_NOP2_SUN FAMILY PROTEIN _ ANTITERMINATION NUSB DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR22807; NOP2 YEAST -RELATED NOL1/NOP2/FMU SUN DOMAIN-CONTAINING; 1.
DR Pfam; PF01189; Methyltr_RsmB-F; 1.
DR Pfam; PF01029; NusB; 1.
DR PRINTS; PR02008; RCMTFAMILY.
DR SUPFAM; SSF48013; NusB-like; 1.
DR SUPFAM; SSF53335; S-adenosyl-L-methionine-dependent methyltransferases; 1.
DR PROSITE; PS01153; NOL1_NOP2_SUN; 1.
DR PROSITE; PS51686; SAM_MT_RSMB_NOP; 1.
PE 3: Inferred from homology;
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|PROSITE-
KW ProRule:PRU01023}; Reference proteome {ECO:0000313|Proteomes:UP000289784};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|PROSITE-
KW ProRule:PRU01023};
KW S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691,
KW ECO:0000256|PROSITE-ProRule:PRU01023};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PROSITE-
KW ProRule:PRU01023}.
FT DOMAIN 160..429
FT /note="SAM-dependent MTase RsmB/NOP-type"
FT /evidence="ECO:0000259|PROSITE:PS51686"
FT ACT_SITE 371
FT /note="Nucleophile"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 250..256
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 273
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 299
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 318
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
SQ SEQUENCE 430 AA; 45872 MW; 4610F0C0B198D16A CRC64;
MSPSGVAPRV QATRVLAAVL HRGRSLKAEL ASALPALDDP RDRALTEAIC FSALRARARF
DAALRRWMPK PPGKHDAELH ALLLGGLAQL QALELPAHAA LSATVEAARA LGKPHQAGLV
NALLRRAQRE GVAEVDASLA WPQWLRQRVT RDWPDQAHDI FAASLAPAPL WLRVNRARVS
RADYLAQLQA AGIQAEAHAV LAEAIGLQAS VPVASLPGFA QGLVSVQDGS AQQVADAVAP
AAHARVLDAC AAPGGKSAHL LERDPSLQLL ALDIDPRRLA RVRETLARVG ARAQVVAGDA
GEPAAWWDGA PFDAVLLDAP CSATGIVRRQ PDVLIHRREQ DLSQLTLTQA RLLDAAWAML
KPGGTLVYTT CSILKDENAR QIDGFLARQP QAQVLPLDQA YGHASGAGRQ RLPGEDGMDG
FFYARLRKAG
//
