MIAB_BRUSU
ID MIAB_BRUSU Reviewed; 467 AA.
AC Q8FXU4; G0K9H9;
DT 05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2003, sequence version 1.
DT 03-AUG-2022, entry version 107.
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};
GN OrderedLocusNames=BR2153, BS1330_I2147;
OS Brucella suis biovar 1 (strain 1330).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Brucellaceae; Brucella/Ochrobactrum group; Brucella.
OX NCBI_TaxID=204722;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1330;
RX PubMed=12271122; DOI=10.1073/pnas.192319099;
RA Paulsen I.T., Seshadri R., Nelson K.E., Eisen J.A., Heidelberg J.F.,
RA Read T.D., Dodson R.J., Umayam L.A., Brinkac L.M., Beanan M.J.,
RA Daugherty S.C., DeBoy R.T., Durkin A.S., Kolonay J.F., Madupu R.,
RA Nelson W.C., Ayodeji B., Kraul M., Shetty J., Malek J.A., Van Aken S.E.,
RA Riedmuller S., Tettelin H., Gill S.R., White O., Salzberg S.L.,
RA Hoover D.L., Lindler L.E., Halling S.M., Boyle S.M., Fraser C.M.;
RT "The Brucella suis genome reveals fundamental similarities between animal
RT and plant pathogens and symbionts.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:13148-13153(2002).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1330;
RX PubMed=22038969; DOI=10.1128/jb.06181-11;
RA Tae H., Shallom S., Settlage R., Preston D., Adams L.G., Garner H.R.;
RT "Revised genome sequence of Brucella suis 1330.";
RL J. Bacteriol. 193:6410-6410(2011).
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; AE014291; AAN31043.1; -; Genomic_DNA.
DR EMBL; CP002997; AEM19460.1; -; Genomic_DNA.
DR RefSeq; WP_004691178.1; NZ_KN046804.1.
DR AlphaFoldDB; Q8FXU4; -.
DR SMR; Q8FXU4; -.
DR EnsemblBacteria; AEM19460; AEM19460; BS1330_I2147.
DR GeneID; 45053074; -.
DR GeneID; 55591715; -.
DR KEGG; bms:BR2153; -.
DR KEGG; bsi:BS1330_I2147; -.
DR PATRIC; fig|204722.21.peg.659; -.
DR HOGENOM; CLU_018697_2_0_5; -.
DR OMA; CEHFHIP; -.
DR PhylomeDB; Q8FXU4; -.
DR Proteomes; UP000007104; Chromosome I.
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;
KW S-adenosyl-L-methionine; Transferase; tRNA processing.
FT CHAIN 1..467
FT /note="tRNA-2-methylthio-N(6)-dimethylallyladenosine
FT synthase"
FT /id="PRO_0000374169"
FT DOMAIN 23..143
FT /note="MTTase N-terminal"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT DOMAIN 170..402
FT /note="Radical SAM core"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT DOMAIN 405..467
FT /note="TRAM"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01864"
FT REGION 1..20
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 32
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 68
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 106
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 184
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 188
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 191
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 467 AA; 52309 MW; DAA3A6665B0E16F7 CRC64;
MSDDTTQIEP AMAQETSPRA NTRKVFVKTY GCQMNVYDSQ RMADSLAAEG YVATDTPDDA
DLVLLNTCHI REKASEKLYS ALGRLRKMKD ARAADGKELT IGVAGCVAQA EGQEILRRAP
NVDLVIGPQT YHRLPNALAR VRGGEKVVET DYAIEDKFEH LPAPRREETR KRGVSAFLTV
QEGCDKFCTF CVVPYTRGSE VSRSVKQIVA EAERLADSGV RELTLLGQNV NAWHGEGEDG
REWGLGELLF RLARIPGIAR LRYTTSHPRD MDDSLIAAHR DLRQLMPYLH LPVQSGSDRI
LKAMNRRHKA DEYLRLIERI RNVRPDMALS GDFIVGFPGE TDQDFEDTMQ LVRDVNYAQA
YSFKYSPRPG TPGADLDDHV EEAVKDERLQ RLQALLSAQQ YAFQDSMIGR KMDVLLEKPG
REAGQMVGRS PWLLPVIIDD NKDRVGDIIH VKIVSTGTNS LIAQKLA
