ID K9BVR5_ACINO Unreviewed; 410 AA. AC K9BVR5; A0A241YR17; A0A334ABW9; DT 06-FEB-2013, integrated into UniProtKB/TrEMBL. DT 06-FEB-2013, sequence version 1. DT 02-JUN-2021, entry version 51. DE RecName: Full=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 ECO:0000313|EMBL:PVA02618.1}; GN ORFNames=B9X80_01765 {ECO:0000313|EMBL:OTL16975.1}, DC362_13420 GN {ECO:0000313|EMBL:PVA02618.1}, GD578_02505 GN {ECO:0000313|EMBL:QGA42841.1}, SAMEA104305261_02373 GN {ECO:0000313|EMBL:SSR15516.1}; OS Acinetobacter nosocomialis. OC Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales; OC Moraxellaceae; Acinetobacter; OC Acinetobacter calcoaceticus/baumannii complex. OX NCBI_TaxID=106654 {ECO:0000313|EMBL:OTL16975.1, ECO:0000313|Proteomes:UP000195182}; RN [1] {ECO:0000313|EMBL:OTL16975.1, ECO:0000313|Proteomes:UP000195182} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=PR365 {ECO:0000313|EMBL:OTL16975.1, RC ECO:0000313|Proteomes:UP000195182}; RA Song R., Chenine A.L., Ruprecht R.M.; RL Submitted (MAY-2017) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313|EMBL:PVA02618.1, ECO:0000313|Proteomes:UP000244598} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=Ab1 {ECO:0000313|EMBL:PVA02618.1, RC ECO:0000313|Proteomes:UP000244598}; RA Go L.Y., Mitchell J.A.; RL Submitted (APR-2018) to the EMBL/GenBank/DDBJ databases. RN [3] {ECO:0000313|EMBL:SSR15516.1, ECO:0000313|Proteomes:UP000253602} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=4300STDY7045765 {ECO:0000313|EMBL:SSR15516.1, RC ECO:0000313|Proteomes:UP000253602}; RG Pathogen Informatics; RL Submitted (JUL-2018) to the EMBL/GenBank/DDBJ databases. RN [4] {ECO:0000313|EMBL:QGA42841.1, ECO:0000313|Proteomes:UP000325778} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=AC1530 {ECO:0000313|EMBL:QGA42841.1, RC ECO:0000313|Proteomes:UP000325778}; RA Mohd Rani F., Alattraqchi A.G., A Rahman N.I., Ismail S., Clarke S., RA Yeo C.C.; RT "Genome sequence of multidrug resistant Acinetobacter nosocomialis AC1530 RT from Terengganu, Malaysia."; RL Submitted (OCT-2019) 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. m2A2503 modification seems CC to play a crucial role in the proofreading step occurring at the CC peptidyl transferase center and thus would serve to optimize ribosomal CC fidelity. {ECO:0000256|HAMAP-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|ARBA:ARBA00001966}; 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|ARBA:ARBA00007544, 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; NGCS01000004; OTL16975.1; -; Genomic_DNA. DR EMBL; QCYF01000053; PVA02618.1; -; Genomic_DNA. DR EMBL; CP045560; QGA42841.1; -; Genomic_DNA. DR EMBL; UFKR01000006; SSR15516.1; -; Genomic_DNA. DR RefSeq; WP_002053401.1; NZ_VYTL01000001.1. DR EnsemblBacteria; OTL16975; OTL16975; B9X80_01765. DR EnsemblBacteria; PVA02618; PVA02618; DC362_13420. DR EnsemblBacteria; SSQ43150; SSQ43150; SAMEA104305229_06542. DR EnsemblBacteria; SSR15516; SSR15516; SAMEA104305261_02373. DR EnsemblBacteria; SSR42723; SSR42723; SAMEA104305246_01959. DR GeneID; 60877215; -. DR Proteomes; UP000195182; Unassembled WGS sequence. DR Proteomes; UP000244598; Unassembled WGS sequence. DR Proteomes; UP000253602; Unassembled WGS sequence. DR Proteomes; UP000325778; 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. 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|ARBA:ARBA00023157, ECO:0000256|HAMAP- KW 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}; 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 139..312 FT /note="Radical_SAM" FT /evidence="ECO:0000259|Pfam:PF04055" FT REGION 7..26 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 200..201 FT /note="S-adenosyl-L-methionine binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT REGION 254..256 FT /note="S-adenosyl-L-methionine binding" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT ACT_SITE 120 FT /note="Proton acceptor" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT ACT_SITE 378 FT /note="S-methylcysteine intermediate" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT METAL 144 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT METAL 148 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT METAL 151 FT /note="Iron-sulfur (4Fe-4S-S-AdoMet)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT BINDING 232 FT /note="S-adenosyl-L-methionine" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" FT BINDING 335 FT /note="S-adenosyl-L-methionine; via amide nitrogen and FT carbonyl oxygen" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01849" SQ SEQUENCE 410 AA; 45756 MW; 2E98CD9213296A88 CRC64; MSSAVVVSSE NLDGQQQSSS TPASPAAEKV NLLGMSRAQL EKFFEDIGEK KFRAGQVMKW IHQYFVTDFA EMTNISGKLR AKLEQICEIK APEVVHRHYS KDGTRKWVFR VGEGSGSLVE TVLIPAEDKT GSRKTLCISS QVGCALDCSF CSTGKQGFQR DLTPDEIIGQ LWMANYSYME EVPVAERERS VTNVVMMGMG EPLLNYDAVL SSMHIMLDDF AYGMSKRRVT LSTSGVVPKI DQLAQDIDVA LAISLHAPND ELRNELVPIN KKYPLAQLIA ACQRYIAKDG NESARKHVTI EYVMLEGVND QPEHAQQLLK LLKNLPSKIN LIPFNPFPHA PYGRSSRNRI ISFQKTLSDA GFVCTIRQTR GDDIDAACGQ LVGQVADRTR RAEQWQKKVA QRQEILRTQG //