ID A0A2T1E3L5_9CYAN Unreviewed; 488 AA.
AC A0A2T1E3L5;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 27-MAR-2024, entry version 24.
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 ORFNames=C7B82_16650 {ECO:0000313|EMBL:PSB27327.1};
OS Stenomitos frigidus ULC18.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Leptolyngbyales; Leptolyngbyaceae;
OC Stenomitos.
OX NCBI_TaxID=2107698 {ECO:0000313|EMBL:PSB27327.1, ECO:0000313|Proteomes:UP000239576};
RN [1] {ECO:0000313|Proteomes:UP000239576}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ULC18 {ECO:0000313|Proteomes:UP000239576};
RA Moore K., Momper L.;
RL Submitted (FEB-2018) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:PSB27327.1, ECO:0000313|Proteomes:UP000239576}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ULC18 {ECO:0000313|EMBL:PSB27327.1,
RC ECO:0000313|Proteomes:UP000239576};
RA Moore K.R., Magnabosco C., Momper L., Gold D.A., Bosak T., Fournier G.P.;
RT "The ancient ancestry and fast evolution of plastids.";
RL Submitted (MAR-2018) 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|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:PSB27327.1}.
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DR EMBL; PVWK01000095; PSB27327.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2T1E3L5; -.
DR OrthoDB; 9810297at2; -.
DR Proteomes; UP000239576; 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; IPR049560; MeTrfase_RsmB-F_NOP2_cat.
DR InterPro; IPR001678; MeTrfase_RsmB-F_NOP2_dom.
DR InterPro; IPR011023; Nop2p.
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; TIGR00446; nop2p; 1.
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; 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:UP000239576};
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 214..488
FT /note="SAM-dependent MTase RsmB/NOP-type"
FT /evidence="ECO:0000259|PROSITE:PS51686"
FT REGION 134..159
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 134..151
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 426
FT /note="Nucleophile"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 305..311
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 329
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 356
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
FT BINDING 373
FT /ligand="S-adenosyl-L-methionine"
FT /ligand_id="ChEBI:CHEBI:59789"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU01023"
SQ SEQUENCE 488 AA; 53930 MW; 2E6BCFF68C0FE674 CRC64;
MSQNPRQLAF LALRSVHRGA FADVALDKTL RQATLTSLLD RRLLTELVYG SVRRQRTLDA
LIDQLAKKPA QQQPADLRAI LHLGLYQLRY LNQIPASAAV NTTVDLAKQN GFSGLTGFVN
GLLRQYIRLT EDSRESGIRS PESEEREAGG NAVDSAGEAA GNNVKQTVVS HTIDPLSFIL
YPSPADRLGV LHSYPDWMVK VWLEQLGLEA TEQLCQWMNQ PPHIDIRVNT LRASVETVEE
AMQGAGIAVS RVAHLPAALR LPNASGSIQQ LPGFAEGWWI VQDSSAQLVG YLLDPQPKEV
VVDACAAPGG KTMHIAELMH DRGTVWACDR AASRLKKLQQ NVDRLGLHSI QLCEGDSRNL
PQFIGQGDRV LVDAPCSGLG TLHRHADARW RQTPETVQQL TQLQAELLEQ AALWVKPDGI
LVYATCTLHP AENEAIVQGF LQRHTDWAIE PPQANSPPAA FATDEGWLKV WSHQHDMDGF
FMARLKKR
//
