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Database: UniProt
Entry: A0A0B1ZJ58_9SPHN
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ID   A0A0B1ZJ58_9SPHN        Unreviewed;       448 AA.
AC   A0A0B1ZJ58;
DT   04-MAR-2015, integrated into UniProtKB/TrEMBL.
DT   04-MAR-2015, sequence version 1.
DT   24-JAN-2024, entry version 43.
DE   RecName: Full=tRNA-2-methylthio-N(6)-dimethylallyladenosine synthase {ECO:0000256|ARBA:ARBA00033765, ECO:0000256|HAMAP-Rule:MF_01864};
DE            EC=2.8.4.3 {ECO:0000256|ARBA:ARBA00033765, ECO:0000256|HAMAP-Rule:MF_01864};
DE   AltName: Full=(Dimethylallyl)adenosine tRNA methylthiotransferase MiaB {ECO:0000256|HAMAP-Rule:MF_01864};
DE   AltName: Full=tRNA-i(6)A37 methylthiotransferase {ECO:0000256|HAMAP-Rule:MF_01864};
GN   Name=miaB {ECO:0000256|HAMAP-Rule:MF_01864};
GN   ORFNames=LK12_19515 {ECO:0000313|EMBL:KHK89333.1};
OS   Novosphingobium malaysiense.
OC   Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC   Sphingomonadaceae; Novosphingobium.
OX   NCBI_TaxID=1348853 {ECO:0000313|EMBL:KHK89333.1, ECO:0000313|Proteomes:UP000031057};
RN   [1] {ECO:0000313|EMBL:KHK89333.1, ECO:0000313|Proteomes:UP000031057}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MUSC 273 {ECO:0000313|EMBL:KHK89333.1,
RC   ECO:0000313|Proteomes:UP000031057};
RA   Lee L.-H.;
RT   "Genome sequence of Novosphingobium malaysiense MUSC 273(T).";
RL   Submitted (OCT-2014) to the EMBL/GenBank/DDBJ databases.
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:0000256|ARBA:ARBA00003234,
CC       ECO:0000256|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:0000256|HAMAP-
CC         Rule:MF_01864};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000256|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:0000256|HAMAP-Rule:MF_01864};
CC   -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_01864}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01864}.
CC   -!- SIMILARITY: Belongs to the methylthiotransferase family. MiaB
CC       subfamily. {ECO:0000256|HAMAP-Rule:MF_01864}.
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:KHK89333.1}.
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DR   EMBL; JTDI01000007; KHK89333.1; -; Genomic_DNA.
DR   RefSeq; WP_039288000.1; NZ_JTDI01000007.1.
DR   AlphaFoldDB; A0A0B1ZJ58; -.
DR   STRING; 1348853.LK12_19515; -.
DR   OrthoDB; 9805215at2; -.
DR   Proteomes; UP000031057; 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:0035596; F:methylthiotransferase activity; IEA:InterPro.
DR   GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR   CDD; cd01335; Radical_SAM; 1.
DR   Gene3D; 3.40.50.12160; Methylthiotransferase, N-terminal domain; 1.
DR   Gene3D; 3.80.30.20; tm_1862 like domain; 1.
DR   HAMAP; MF_01864; tRNA_metthiotr_MiaB; 1.
DR   InterPro; IPR006638; Elp3/MiaA/NifB-like_rSAM.
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   NCBIfam; TIGR01574; miaB-methiolase; 1.
DR   NCBIfam; TIGR00089; MiaB/RimO family radical SAM methylthiotransferase; 1.
DR   PANTHER; PTHR43020; CDK5 REGULATORY SUBUNIT-ASSOCIATED PROTEIN 1; 1.
DR   PANTHER; PTHR43020:SF2; MITOCHONDRIAL TRNA METHYLTHIOTRANSFERASE CDK5RAP1; 1.
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; SFLDG01082; B12-binding_domain_containing; 1.
DR   SFLD; SFLDS00029; Radical_SAM; 1.
DR   SMART; SM00729; Elp3; 1.
DR   SUPFAM; SSF102114; Radical SAM enzymes; 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 {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_01864};
KW   Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01864};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01864};
KW   Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW   Rule:MF_01864};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_01864}; Reference proteome {ECO:0000313|Proteomes:UP000031057};
KW   S-adenosyl-L-methionine {ECO:0000256|ARBA:ARBA00022691, ECO:0000256|HAMAP-
KW   Rule:MF_01864};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW   Rule:MF_01864}; tRNA processing {ECO:0000256|HAMAP-Rule:MF_01864}.
FT   DOMAIN          8..126
FT                   /note="MTTase N-terminal"
FT                   /evidence="ECO:0000259|PROSITE:PS51449"
FT   DOMAIN          148..380
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000259|PROSITE:PS51918"
FT   DOMAIN          383..444
FT                   /note="TRAM"
FT                   /evidence="ECO:0000259|PROSITE:PS50926"
FT   BINDING         17
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01864"
FT   BINDING         53
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01864"
FT   BINDING         89
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01864"
FT   BINDING         162
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:0000256|HAMAP-Rule:MF_01864"
FT   BINDING         166
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:0000256|HAMAP-Rule:MF_01864"
FT   BINDING         169
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:0000256|HAMAP-Rule:MF_01864"
SQ   SEQUENCE   448 AA;  48878 MW;  0024A2FBF25D1CDE CRC64;
     MRPTQNPKTY RVKSFGCQMN VYDGDRMAEL LAEQGITPAP EGEQADLVVL NTCHIREKAA
     EKVYSDIGRI VKDWDGDDGS SPLIAVAGCV AQAEGEEIMA RAPAVKMVVG PQAYHRLPDM
     LREATSGKRV TDTDMPAETK FDALPKRRRS GPTAFLTVQE GCDKFCTYCV VPYTRGAEVS
     RPHADLVEEA KRLVDGGARE ITLLGQNVNA WTGENAKGQP VGLDGLIREL AEIPDLARIR
     YTTSHPNDMT EGLIAAHGEI AKLMPFLHLP VQAGNDRVLK AMNRSHTVDS YLRILEQVRA
     VRPDIALSGD FIVGFPGETD AEFEDTLGLV DAVGYAQCFS FKYSPRPGTP AATMDDQIAA
     AVMDERLQRL QAALNRDQLA FNEASVGRTC DVLVERKGKH PGQWLGKSPW LQSVHFTGEA
     RIGDLLRVEL AEAGPNSISA RLLETAAA
//
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