MIAB_CORU7
ID MIAB_CORU7 Reviewed; 540 AA.
AC B1VDD8;
DT 05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 1.
DT 03-AUG-2022, entry version 84.
DE RecName: Full=tRNA-2-methylthio-N(6)-dimethylallyladenosine synthase {ECO:0000255|HAMAP-Rule:MF_01864};
DE EC=2.8.4.3 {ECO:0000255|HAMAP-Rule:MF_01864};
DE AltName: Full=(Dimethylallyl)adenosine tRNA methylthiotransferase MiaB {ECO:0000255|HAMAP-Rule:MF_01864};
DE AltName: Full=tRNA-i(6)A37 methylthiotransferase {ECO:0000255|HAMAP-Rule:MF_01864};
GN Name=miaB {ECO:0000255|HAMAP-Rule:MF_01864}; OrderedLocusNames=cu0876;
OS Corynebacterium urealyticum (strain ATCC 43042 / DSM 7109).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=504474;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 43042 / DSM 7109;
RX PubMed=18367281; DOI=10.1016/j.jbiotec.2008.02.009;
RA Tauch A., Trost E., Tilker A., Ludewig U., Schneiker S., Goesmann A.,
RA Arnold W., Bekel T., Brinkrolf K., Brune I., Goetker S., Kalinowski J.,
RA Kamp P.-B., Lobo F.P., Viehoever P., Weisshaar B., Soriano F., Droege M.,
RA Puehler A.;
RT "The lifestyle of Corynebacterium urealyticum derived from its complete
RT genome sequence established by pyrosequencing.";
RL J. Biotechnol. 136:11-21(2008).
CC -!- FUNCTION: Catalyzes the methylthiolation of N6-(dimethylallyl)adenosine
CC (i(6)A), leading to the formation of 2-methylthio-N6-
CC (dimethylallyl)adenosine (ms(2)i(6)A) at position 37 in tRNAs that read
CC codons beginning with uridine. {ECO:0000255|HAMAP-Rule:MF_01864}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[sulfur carrier]-SH + AH2 + N(6)-dimethylallyladenosine(37) in
CC tRNA + 2 S-adenosyl-L-methionine = 2-methylsulfanyl-N(6)-
CC dimethylallyladenosine(37) in tRNA + 5'-deoxyadenosine + [sulfur
CC carrier]-H + A + 2 H(+) + L-methionine + S-adenosyl-L-homocysteine;
CC Xref=Rhea:RHEA:37067, Rhea:RHEA-COMP:10375, Rhea:RHEA-COMP:10376,
CC Rhea:RHEA-COMP:14737, Rhea:RHEA-COMP:14739, ChEBI:CHEBI:13193,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:17319, ChEBI:CHEBI:17499,
CC ChEBI:CHEBI:29917, ChEBI:CHEBI:57844, ChEBI:CHEBI:57856,
CC ChEBI:CHEBI:59789, ChEBI:CHEBI:64428, ChEBI:CHEBI:74415,
CC ChEBI:CHEBI:74417; EC=2.8.4.3; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_01864};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01864};
CC Note=Binds 2 [4Fe-4S] clusters. One cluster is coordinated with 3
CC cysteines and an exchangeable S-adenosyl-L-methionine.
CC {ECO:0000255|HAMAP-Rule:MF_01864};
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01864}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01864}.
CC -!- SIMILARITY: Belongs to the methylthiotransferase family. MiaB
CC subfamily. {ECO:0000255|HAMAP-Rule:MF_01864}.
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DR EMBL; AM942444; CAQ04836.1; -; Genomic_DNA.
DR RefSeq; WP_012360125.1; NC_010545.1.
DR AlphaFoldDB; B1VDD8; -.
DR SMR; B1VDD8; -.
DR STRING; 504474.cu0876; -.
DR EnsemblBacteria; CAQ04836; CAQ04836; cu0876.
DR GeneID; 60603652; -.
DR KEGG; cur:cu0876; -.
DR eggNOG; COG0621; Bacteria.
DR HOGENOM; CLU_018697_2_2_11; -.
DR OMA; KERRNIC; -.
DR OrthoDB; 397139at2; -.
DR Proteomes; UP000001727; 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:0035596; F:methylthiotransferase activity; IEA:InterPro.
DR GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.12160; -; 1.
DR Gene3D; 3.80.30.20; -; 1.
DR HAMAP; MF_01864; tRNA_metthiotr_MiaB; 1.
DR InterPro; IPR006638; Elp3/MiaB/NifB.
DR InterPro; IPR005839; Methylthiotransferase.
DR InterPro; IPR020612; Methylthiotransferase_CS.
DR InterPro; IPR013848; Methylthiotransferase_N.
DR InterPro; IPR038135; Methylthiotransferase_N_sf.
DR InterPro; IPR006463; MiaB_methiolase.
DR InterPro; IPR007197; rSAM.
DR InterPro; IPR023404; rSAM_horseshoe.
DR InterPro; IPR002792; TRAM_dom.
DR Pfam; PF04055; Radical_SAM; 1.
DR Pfam; PF01938; TRAM; 1.
DR Pfam; PF00919; UPF0004; 1.
DR SFLD; SFLDF00273; (dimethylallyl)adenosine_tRNA; 1.
DR SFLD; SFLDG01061; methylthiotransferase; 1.
DR SMART; SM00729; Elp3; 1.
DR TIGRFAMs; TIGR00089; TIGR00089; 1.
DR PROSITE; PS51449; MTTASE_N; 1.
DR PROSITE; PS01278; MTTASE_RADICAL; 1.
DR PROSITE; PS51918; RADICAL_SAM; 1.
DR PROSITE; PS50926; TRAM; 1.
PE 3: Inferred from homology;
KW 4Fe-4S; Cytoplasm; Iron; Iron-sulfur; Metal-binding; Reference proteome;
KW S-adenosyl-L-methionine; Transferase; tRNA processing.
FT CHAIN 1..540
FT /note="tRNA-2-methylthio-N(6)-dimethylallyladenosine
FT synthase"
FT /id="PRO_0000374243"
FT DOMAIN 41..157
FT /note="MTTase N-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT DOMAIN 180..416
FT /note="Radical SAM core"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT DOMAIN 419..486
FT /note="TRAM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 50
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 86
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 120
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 194
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 198
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT BINDING 201
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /ligand_note="4Fe-4S-S-AdoMet"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
SQ SEQUENCE 540 AA; 59106 MW; 45D9519853EFB840 CRC64;
MCRAVAGVTR FVFTLALGVG SAHVTHAMKK KTSVSEQPEQ RTYEVRTFGC QMNVHDSERL
SGLLEDSGYQ PAANGEEPDV LVFNTCAVRE NADNRLYGTL AMVKPMKDRN PGMQIAVGGC
MAQKDKDAVV DRAPWVDVVF GTHNIGSLPT LLERSAHNQR AEVEILDSLE EFPSVLPAKR
ESAYSGWVSV SVGCNNTCTF CIVPSLRGKE QDRRPGEILA EVQALVDQGV QEVTLLGQNV
NAYGVNFADE DLPRDRGAFA KLLRACGEIE GLERLRFTSP HPAEFTDDVI DAMAETPNVC
PQLHMPLQSG SDRILKEMRR SYRSKKFLGI LDKVRERIPH AAITTDIIVG FPGETEEDFQ
ATLDVVEKAR FSCAFTFQYS PRPGTPAATM PDQIPKAVVQ ERYERLIALQ ERIQAEDNKE
LVGTTQELLV QETGGRKDAQ RHRMSGRARD GRLVHFTPSE DVRPGDIVEV TITDARPFFL
IADGPLVNHR LTKAGDMSGA GQTPTTAPIG VSLGVPTIGI KPQADATAAP KNVHEGCGCD
