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RLMN_FINM2
ID   RLMN_FINM2              Reviewed;         349 AA.
AC   B0S143;
DT   02-SEP-2008, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=Probable dual-specificity RNA methyltransferase RlmN {ECO:0000255|HAMAP-Rule:MF_01849};
DE            EC=2.1.1.192 {ECO:0000255|HAMAP-Rule:MF_01849};
DE   AltName: Full=23S rRNA (adenine(2503)-C(2))-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01849};
DE   AltName: Full=23S rRNA m2A2503 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01849};
DE   AltName: Full=Ribosomal RNA large subunit methyltransferase N {ECO:0000255|HAMAP-Rule:MF_01849};
DE   AltName: Full=tRNA (adenine(37)-C(2))-methyltransferase {ECO:0000255|HAMAP-Rule:MF_01849};
DE   AltName: Full=tRNA m2A37 methyltransferase {ECO:0000255|HAMAP-Rule:MF_01849};
GN   Name=rlmN {ECO:0000255|HAMAP-Rule:MF_01849}; OrderedLocusNames=FMG_0665;
OS   Finegoldia magna (strain ATCC 29328 / DSM 20472 / WAL 2508)
OS   (Peptostreptococcus magnus).
OC   Bacteria; Firmicutes; Tissierellia; Tissierellales; Peptoniphilaceae;
OC   Finegoldia.
OX   NCBI_TaxID=334413;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29328 / DSM 20472 / WAL 2508;
RX   PubMed=18263572; DOI=10.1093/dnares/dsm030;
RA   Goto T., Yamashita A., Hirakawa H., Matsutani M., Todo K., Ohshima K.,
RA   Toh H., Miyamoto K., Kuhara S., Hattori M., Shimizu T., Akimoto S.;
RT   "Complete genome sequence of Finegoldia magna, an anaerobic opportunistic
RT   pathogen.";
RL   DNA Res. 15:39-47(2008).
CC   -!- FUNCTION: Specifically methylates position 2 of adenine 2503 in 23S
CC       rRNA and position 2 of adenine 37 in tRNAs. {ECO:0000255|HAMAP-
CC       Rule:MF_01849}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(2503) in 23S rRNA + 2 reduced [2Fe-2S]-[ferredoxin]
CC         + 2 S-adenosyl-L-methionine = 2-methyladenosine(2503) in 23S rRNA +
CC         5'-deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] +
CC         S-adenosyl-L-homocysteine; Xref=Rhea:RHEA:42916, Rhea:RHEA-
CC         COMP:10000, Rhea:RHEA-COMP:10001, Rhea:RHEA-COMP:10152, Rhea:RHEA-
CC         COMP:10282, ChEBI:CHEBI:17319, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738,
CC         ChEBI:CHEBI:57844, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74411, ChEBI:CHEBI:74497; EC=2.1.1.192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01849};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(37) in tRNA + 2 reduced [2Fe-2S]-[ferredoxin] + 2 S-
CC         adenosyl-L-methionine = 2-methyladenosine(37) in tRNA + 5'-
CC         deoxyadenosine + L-methionine + 2 oxidized [2Fe-2S]-[ferredoxin] + S-
CC         adenosyl-L-homocysteine; Xref=Rhea:RHEA:43332, Rhea:RHEA-COMP:10000,
CC         Rhea:RHEA-COMP:10001, Rhea:RHEA-COMP:10162, Rhea:RHEA-COMP:10485,
CC         ChEBI:CHEBI:17319, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738,
CC         ChEBI:CHEBI:57844, ChEBI:CHEBI:57856, ChEBI:CHEBI:59789,
CC         ChEBI:CHEBI:74411, ChEBI:CHEBI:74497; EC=2.1.1.192;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01849};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01849};
CC       Note=Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3
CC       cysteines and an exchangeable S-adenosyl-L-methionine.
CC       {ECO:0000255|HAMAP-Rule:MF_01849};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01849}.
CC   -!- MISCELLANEOUS: Reaction proceeds by a ping-pong mechanism involving
CC       intermediate methylation of a conserved cysteine residue.
CC       {ECO:0000255|HAMAP-Rule:MF_01849}.
CC   -!- SIMILARITY: Belongs to the radical SAM superfamily. RlmN family.
CC       {ECO:0000255|HAMAP-Rule:MF_01849}.
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DR   EMBL; AP008971; BAG08083.1; -; Genomic_DNA.
DR   RefSeq; WP_012290554.1; NC_010376.1.
DR   AlphaFoldDB; B0S143; -.
DR   SMR; B0S143; -.
DR   STRING; 334413.FMG_0665; -.
DR   EnsemblBacteria; BAG08083; BAG08083; FMG_0665.
DR   KEGG; fma:FMG_0665; -.
DR   eggNOG; COG0820; Bacteria.
DR   HOGENOM; CLU_029101_0_1_9; -.
DR   OMA; KVVFMGM; -.
DR   OrthoDB; 1111428at2; -.
DR   Proteomes; UP000001319; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0070040; F:rRNA (adenine-C2-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0002935; F:tRNA (adenine-C2-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0070475; P:rRNA base methylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01849; RNA_methyltr_RlmN; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR040072; Methyltransferase_A.
DR   InterPro; IPR027492; RNA_MTrfase_RlmN.
DR   InterPro; IPR004383; rRNA_lsu_MTrfase_RlmN/Cfr.
DR   InterPro; IPR007197; rSAM.
DR   PANTHER; PTHR30544; PTHR30544; 1.
DR   Pfam; PF04055; Radical_SAM; 1.
DR   PIRSF; PIRSF006004; CHP00048; 1.
DR   SFLD; SFLDF00275; adenosine_C2_methyltransferase; 1.
DR   TIGRFAMs; TIGR00048; rRNA_mod_RlmN; 1.
DR   PROSITE; PS51918; RADICAL_SAM; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Cytoplasm; Disulfide bond; Iron; Iron-sulfur; Metal-binding;
KW   Methyltransferase; Reference proteome; rRNA processing;
KW   S-adenosyl-L-methionine; Transferase; tRNA processing.
FT   CHAIN           1..349
FT                   /note="Probable dual-specificity RNA methyltransferase
FT                   RlmN"
FT                   /id="PRO_0000350176"
FT   DOMAIN          100..324
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT   ACT_SITE        94
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   ACT_SITE        335
FT                   /note="S-methylcysteine intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         114
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         118
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         121
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         161..162
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         193
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         216..218
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   BINDING         292
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
FT   DISULFID        107..335
FT                   /note="(transient)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01849"
SQ   SEQUENCE   349 AA;  40597 MW;  765392F1AA53D98B CRC64;
     MQNKIILENM TVDELKEFFV NNGEKPFRAL QYFQAIHKNR IFNPDEMTNF SNSLRGKLNQ
     YNDIKNCSII KRIDSKLDNT KKYLIEMSDG NIVETVFMQY KTHTSICLST QIGCKMGCKF
     CASTKKSFVR NLQPYEMCAQ IYLVENDLDI RINNIVLMGI GEPLDNYDNV SRFIDLITDK
     DGQDMSIRNI TLSTCGLVDK IIRLANDDIG INITISLHNP FDNERNKLMP IGNKYSIEEI
     LDACDYYFKK TKRRIGFEYT VIENVNDSKK YMDKLVSLLK NRNCLLNLIT LNPIEEFNQK
     SPDRYKMTEF MEYMNKNNVN TTIRRKQGID IDGACGQLRI NNMTKRGVK
 
 
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