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Database: UniProt
Entry: W4HK12_9RHOB
LinkDB: W4HK12_9RHOB
Original site: W4HK12_9RHOB 
ID   W4HK12_9RHOB            Unreviewed;       392 AA.
AC   W4HK12;
DT   19-MAR-2014, integrated into UniProtKB/TrEMBL.
DT   19-MAR-2014, sequence version 1.
DT   24-JAN-2024, entry version 47.
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   ORFNames=ATO8_12926 {ECO:0000313|EMBL:ETW12456.1};
OS   Roseivivax marinus.
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC   Roseobacteraceae; Roseivivax.
OX   NCBI_TaxID=1379903 {ECO:0000313|EMBL:ETW12456.1, ECO:0000313|Proteomes:UP000019063};
RN   [1] {ECO:0000313|EMBL:ETW12456.1, ECO:0000313|Proteomes:UP000019063}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=22II-s10s {ECO:0000313|EMBL:ETW12456.1,
RC   ECO:0000313|Proteomes:UP000019063};
RX   PubMed=24567080; DOI=10.1007/s10482-014-0140-5;
RA   Li G., Lai Q., Liu X., Sun F., Shao Z.;
RT   "Roseivivax atlanticus sp. nov., isolated from surface seawater of the
RT   Atlantic Ocean.";
RL   Antonie Van Leeuwenhoek 105:863-869(2014).
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|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|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   -!- 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:ETW12456.1}.
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DR   EMBL; AQQW01000007; ETW12456.1; -; Genomic_DNA.
DR   RefSeq; WP_043844930.1; NZ_JASHIL010000026.1.
DR   AlphaFoldDB; W4HK12; -.
DR   STRING; 1379903.ATO8_12926; -.
DR   PATRIC; fig|1317118.6.peg.2661; -.
DR   eggNOG; COG0820; Bacteria.
DR   Proteomes; UP000019063; Unassembled WGS sequence.
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 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; SFLDG01062; methyltransferase_(Class_A); 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|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}; Reference proteome {ECO:0000313|Proteomes:UP000019063};
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          121..357
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000259|PROSITE:PS51918"
FT   ACT_SITE        115
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   ACT_SITE        368
FT                   /note="S-methylcysteine intermediate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         135
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         139
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         142
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         194..195
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         226
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         248..250
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
FT   BINDING         325
FT                   /ligand="S-adenosyl-L-methionine"
FT                   /ligand_id="ChEBI:CHEBI:59789"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01849"
SQ   SEQUENCE   392 AA;  43789 MW;  BD63D394DAF705BE CRC64;
     MTATAPITQD LVTIPRKAPE GPLNLVGLSR DAMRDAFLAA GTPEKQVKMR VNQVWQWIYY
     WGVRDFAHMT NLSKDYRQLL SDNFVIRLPE MVSRNVSADG TRKYLVRIAG GHEVEVVYIP
     ESDRGTLCIS SQVGCTLTCS FCHTGTQKLV RNLTPDEIVG QVMLARDDLG EWPERGGPKN
     ETRLLSNVVL MGMGEPLYNF DNVRDAMKIV MDGEGIALSR RRITLSTSGI VPEIARCAEE
     IGCQLAVSFH ATTDEVRNKL VPINKKWNIE ALLGALKEYP RLSNSERITF EYVMLKDVND
     SDADARRLVN LIKGIPAKIN LIPFNEWPGA PYERSDWSRI EAFADIVYKA GYASPIRTPR
     GEDIMAACGQ LKSATERARK SRKAIEAEAA RG
//
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