ID   F3YA05_MELPT            Unreviewed;       357 AA.
AC   F3YA05;
DT   28-JUN-2011, integrated into UniProtKB/TrEMBL.
DT   28-JUN-2011, sequence version 1.
DT   27-MAR-2024, entry version 64.
DE   RecName: Full=Probable dual-specificity RNA methyltransferase RlmN {ECO:0000256|HAMAP-Rule:MF_01849};
DE            EC=2.1.1.192 {ECO:0000256|HAMAP-Rule:MF_01849};
DE   AltName: Full=23S rRNA (adenine(2503)-C(2))-methyltransferase {ECO:0000256|HAMAP-Rule:MF_01849};
DE   AltName: Full=23S rRNA m2A2503 methyltransferase {ECO:0000256|HAMAP-Rule:MF_01849};
DE   AltName: Full=Ribosomal RNA large subunit methyltransferase N {ECO:0000256|HAMAP-Rule:MF_01849};
DE   AltName: Full=tRNA (adenine(37)-C(2))-methyltransferase {ECO:0000256|HAMAP-Rule:MF_01849};
DE   AltName: Full=tRNA m2A37 methyltransferase {ECO:0000256|HAMAP-Rule:MF_01849};
GN   Name=rlmN {ECO:0000256|HAMAP-Rule:MF_01849};
GN   OrderedLocusNames=MPTP_0871 {ECO:0000313|EMBL:BAK21333.1};
OS   Melissococcus plutonius (strain ATCC 35311 / CIP 104052 / LMG 20360 / NCIMB
OS   702443).
OC   Bacteria; Bacillota; Bacilli; Lactobacillales; Enterococcaceae;
OC   Melissococcus.
OX   NCBI_TaxID=940190 {ECO:0000313|EMBL:BAK21333.1, ECO:0000313|Proteomes:UP000008456};
RN   [1] {ECO:0000313|EMBL:BAK21333.1, ECO:0000313|Proteomes:UP000008456}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35311 / CIP 104052 / LMG 20360 / NCIMB 702443
RC   {ECO:0000313|Proteomes:UP000008456};
RX   PubMed=21622755; DOI=10.1128/JB.05151-11;
RA   Okumura K., Arai R., Okura M., Kirikae T., Takamatsu D., Osaki M.,
RA   Miyoshi-Akiyama T.;
RT   "Complete genome sequence of Melissococcus plutonius ATCC 35311.";
RL   J. Bacteriol. 193:4029-4030(2011).
RN   [2]
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=ATCC 35311;
RA   Okumura K., Arai R., Osaki M., Okura M., Kirikae T., Takamatsu D.,
RA   Akiyama T.;
RT   "Whole genome sequence of Melissococcus plutonius ATCC 35311.";
RL   Submitted (APR-2011) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Specifically methylates position 2 of adenine 2503 in 23S
CC       rRNA and position 2 of adenine 37 in tRNAs. {ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_01849};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000256|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:0000256|HAMAP-Rule:MF_01849};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01849}.
CC   -!- MISCELLANEOUS: Reaction proceeds by a ping-pong mechanism involving
CC       intermediate methylation of a conserved cysteine residue.
CC       {ECO:0000256|HAMAP-Rule:MF_01849}.
CC   -!- SIMILARITY: Belongs to the radical SAM superfamily. RlmN family.
CC       {ECO:0000256|HAMAP-Rule:MF_01849}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC       feature annotation. {ECO:0000256|HAMAP-Rule:MF_01849}.
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DR   EMBL; AP012200; BAK21333.1; -; Genomic_DNA.
DR   AlphaFoldDB; F3YA05; -.
DR   STRING; 940190.MPTP_0871; -.
DR   KEGG; mps:MPTP_0871; -.
DR   HOGENOM; CLU_029101_0_1_9; -.
DR   OrthoDB; 9793973at2; -.
DR   Proteomes; UP000008456; 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(2503)-C2-)-methyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0002935; F:tRNA (adenine(37)-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   GO; GO:0030488; P:tRNA methylation; IEA:UniProtKB-UniRule.
DR   CDD; cd01335; Radical_SAM; 1.
DR   Gene3D; 1.10.150.530; -; 1.
DR   Gene3D; 3.20.20.70; Aldolase class I; 1.
DR   HAMAP; MF_01849; RNA_methyltr_RlmN; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR040072; Methyltransferase_A.
DR   InterPro; IPR048641; RlmN_N.
DR   InterPro; IPR027492; RNA_MTrfase_RlmN.
DR   InterPro; IPR004383; rRNA_lsu_MTrfase_RlmN/Cfr.
DR   InterPro; IPR007197; rSAM.
DR   NCBIfam; TIGR00048; rRNA_mod_RlmN; 1.
DR   PANTHER; PTHR30544; 23S RRNA METHYLTRANSFERASE; 1.
DR   PANTHER; PTHR30544:SF5; RADICAL SAM CORE DOMAIN-CONTAINING PROTEIN; 1.
DR   Pfam; PF04055; Radical_SAM; 1.
DR   Pfam; PF21016; RlmN_N; 1.
DR   PIRSF; PIRSF006004; CHP00048; 1.
DR   SFLD; SFLDF00275; adenosine_C2_methyltransferase; 1.
DR   SFLD; SFLDS00029; Radical_SAM; 1.
DR   SUPFAM; SSF102114; Radical SAM enzymes; 1.
DR   PROSITE; PS51918; RADICAL_SAM; 1.
PE   3: Inferred from homology;
KW   4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_01849};
KW   Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01849};
KW   Disulfide bond {ECO:0000256|HAMAP-Rule:MF_01849};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01849};
KW   Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW   Rule:MF_01849};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_01849};
KW   Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW   Rule:MF_01849}; Reference proteome {ECO:0000313|Proteomes:UP000008456};
KW   rRNA processing {ECO:0000256|ARBA:ARBA00022552, ECO:0000256|HAMAP-
KW   Rule:MF_01849};
KW   S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW   Rule:MF_01849};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW   Rule:MF_01849};
KW   tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW   Rule:MF_01849}.
FT   DOMAIN          103..335
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000259|PROSITE:PS51918"
FT   ACT_SITE        97
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   ACT_SITE        346
FT                   /note="S-methylcysteine intermediate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         117
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000256|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:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         124
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         169..170
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         201
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         224..226
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         302
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
SQ   SEQUENCE   357 AA;  41257 MW;  DA5A183BC03A79B1 CRC64;
     MEKDIMQKQT IYGLTKEALV NWFLENGEKK FRANQVWEWL YIKRVESFED MTNLSKTLIS
     LLDQHFVIQV LRQTIIQEAK DGTVKYLFEL PDKNMIETVL MRQEYGLSVC VTTQVGCNMG
     CTFCASGLLK KNRNLTAGEI VAQIMMVQRY FDQRKLGERV SHVVVMGIGE PFDNYEQLMQ
     FIQIINDEKG LAIGARHLTV STCGLVPQIK KFAQTGLQVN LAISLHASNN QIRSSIMRIN
     HTFPIEKLMQ TIDEYIEQTN RRVTFEYIML QKVNDYPEHA QELADLLKDK KKLAYVNLIP
     YNPVNEHDQY CRSEKASVLK FYDILKKNGI NCVIRKEHGT DIDAACGQLR SKQLTKK
//