ID   MIAA_ECOL6              Reviewed;         316 AA.
AC   Q8CXV3;
DT   25-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=tRNA dimethylallyltransferase {ECO:0000255|HAMAP-Rule:MF_00185};
DE            EC=2.5.1.75 {ECO:0000255|HAMAP-Rule:MF_00185};
DE   AltName: Full=Dimethylallyl diphosphate:tRNA dimethylallyltransferase {ECO:0000255|HAMAP-Rule:MF_00185};
DE            Short=DMAPP:tRNA dimethylallyltransferase {ECO:0000255|HAMAP-Rule:MF_00185};
DE            Short=DMATase {ECO:0000255|HAMAP-Rule:MF_00185};
DE   AltName: Full=Isopentenyl-diphosphate:tRNA isopentenyltransferase {ECO:0000255|HAMAP-Rule:MF_00185};
DE            Short=IPP transferase {ECO:0000255|HAMAP-Rule:MF_00185};
DE            Short=IPPT {ECO:0000255|HAMAP-Rule:MF_00185};
DE            Short=IPTase {ECO:0000255|HAMAP-Rule:MF_00185};
GN   Name=miaA {ECO:0000255|HAMAP-Rule:MF_00185}; OrderedLocusNames=c5255;
OS   Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=199310;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CFT073 / ATCC 700928 / UPEC;
RX   PubMed=12471157; DOI=10.1073/pnas.252529799;
RA   Welch R.A., Burland V., Plunkett G. III, Redford P., Roesch P., Rasko D.,
RA   Buckles E.L., Liou S.-R., Boutin A., Hackett J., Stroud D., Mayhew G.F.,
RA   Rose D.J., Zhou S., Schwartz D.C., Perna N.T., Mobley H.L.T.,
RA   Donnenberg M.S., Blattner F.R.;
RT   "Extensive mosaic structure revealed by the complete genome sequence of
RT   uropathogenic Escherichia coli.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:17020-17024(2002).
CC   -!- FUNCTION: Catalyzes the transfer of a dimethylallyl group onto the
CC       adenine at position 37 in tRNAs that read codons beginning with
CC       uridine, leading to the formation of N6-(dimethylallyl)adenosine
CC       (i(6)A). {ECO:0000255|HAMAP-Rule:MF_00185}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(37) in tRNA + dimethylallyl diphosphate =
CC         diphosphate + N(6)-dimethylallyladenosine(37) in tRNA;
CC         Xref=Rhea:RHEA:26482, Rhea:RHEA-COMP:10162, Rhea:RHEA-COMP:10375,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:57623, ChEBI:CHEBI:74411,
CC         ChEBI:CHEBI:74415; EC=2.5.1.75; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00185};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00185};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00185}.
CC   -!- SIMILARITY: Belongs to the IPP transferase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00185}.
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DR   EMBL; AE014075; AAN83677.1; -; Genomic_DNA.
DR   RefSeq; WP_001280357.1; NC_004431.1.
DR   AlphaFoldDB; Q8CXV3; -.
DR   SMR; Q8CXV3; -.
DR   STRING; 199310.c5255; -.
DR   EnsemblBacteria; AAN83677; AAN83677; c5255.
DR   KEGG; ecc:c5255; -.
DR   eggNOG; COG0324; Bacteria.
DR   HOGENOM; CLU_032616_0_0_6; -.
DR   OMA; YAKRQYT; -.
DR   BioCyc; ECOL199310:C5255-MON; -.
DR   Proteomes; UP000001410; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0052381; F:tRNA dimethylallyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00185; IPP_trans; 1.
DR   InterPro; IPR039657; Dimethylallyltransferase.
DR   InterPro; IPR018022; IPT.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR11088; PTHR11088; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00174; miaA; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Magnesium; Nucleotide-binding; Transferase; tRNA processing.
FT   CHAIN           1..316
FT                   /note="tRNA dimethylallyltransferase"
FT                   /id="PRO_0000163914"
FT   REGION          42..45
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   REGION          166..170
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   REGION          247..252
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   REGION          280..287
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         17..24
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         19..24
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   SITE            108
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   SITE            130
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ   SEQUENCE   316 AA;  35078 MW;  896A38AFD878C0EF CRC64;
     MSDISKASLP KAIFLMGPTA SGKTALAIEL RKILPVELIS VDSALIYKGM DIGTAKPNAE
     ELLAAPHRLL NIRDPSQAYS AADFRRDALA EMADITAAGR IPLLVGGTML YFKALLEGLS
     PLPSADPEVR ARIEQQAAEQ GWESLHRQLQ EIDPVAAARI HPNDPQRLSR ALEVFFISGK
     TLTELTQTSG DALPYQVHQF AIAPASRELL HQRIEQRFHQ MLASGFEAEV RALFARGDLH
     TDLPSIRCVG YRQMWSYLEG EISYDEMVYR GVCATRQLAK RQITWLRGWE GVHWLDSEKP
     EQARDEVLQV VGAIAG