ID F3YA05_MELPT Unreviewed; 357 AA. AC F3YA05; DT 28-JUN-2011, integrated into UniProtKB/TrEMBL. DT 28-JUN-2011, sequence version 1. DT 29-SEP-2021, entry version 55. 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; Firmicutes; 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|ARBA:ARBA00004496, CC 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}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AP012200; BAK21333.1; -; Genomic_DNA. DR EnsemblBacteria; BAK21333; BAK21333; MPTP_0871. DR KEGG; mps:MPTP_0871; -. DR HOGENOM; CLU_029101_0_1_9; -. DR OMA; KVVFMGM; -. 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-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 SFLD; SFLDS00029; Radical_SAM; 1. DR TIGRFAMs; TIGR00048; rRNA_mod_RlmN; 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}; tRNA processing {ECO:0000256|HAMAP-Rule:MF_01849}. FT DOMAIN 103..335 FT /note="Radical SAM core" FT /evidence="ECO:0000259|PROSITE:PS51918" FT REGION 169..170 FT /note="S-adenosyl-L-methionine binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT REGION 224..226 FT /note="S-adenosyl-L-methionine binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" 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 METAL 117 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT METAL 121 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT METAL 124 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT BINDING 201 FT /note="S-adenosyl-L-methionine" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT BINDING 302 FT /note="S-adenosyl-L-methionine; via amide nitrogen and FT carbonyl oxygen" 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 //