ID   MIAA_CHLAB              Reviewed;         342 AA.
AC   Q5L530;
DT   16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT   16-JUN-2009, sequence version 2.
DT   03-AUG-2022, entry version 91.
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=CAB823;
OS   Chlamydia abortus (strain DSM 27085 / S26/3) (Chlamydophila abortus).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=218497;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 27085 / S26/3;
RX   PubMed=15837807; DOI=10.1101/gr.3684805;
RA   Thomson N.R., Yeats C., Bell K., Holden M.T.G., Bentley S.D.,
RA   Livingstone M., Cerdeno-Tarraga A.-M., Harris B., Doggett J., Ormond D.,
RA   Mungall K., Clarke K., Feltwell T., Hance Z., Sanders M., Quail M.A.,
RA   Price C., Barrell B.G., Parkhill J., Longbottom D.;
RT   "The Chlamydophila abortus genome sequence reveals an array of variable
RT   proteins that contribute to interspecies variation.";
RL   Genome Res. 15:629-640(2005).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=CAH64265.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CR848038; CAH64265.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_006344429.1; NC_004552.2.
DR   AlphaFoldDB; Q5L530; -.
DR   SMR; Q5L530; -.
DR   EnsemblBacteria; CAH64265; CAH64265; CAB823.
DR   KEGG; cab:CAB823; -.
DR   eggNOG; COG0324; Bacteria.
DR   HOGENOM; CLU_032616_0_1_0; -.
DR   OrthoDB; 1069591at2; -.
DR   Proteomes; UP000001012; 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..342
FT                   /note="tRNA dimethylallyltransferase"
FT                   /id="PRO_0000377114"
FT   REGION          64..67
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         39..46
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         41..46
FT                   /ligand="substrate"
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"
FT   SITE            152
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ   SEQUENCE   342 AA;  39217 MW;  2F5D9C5F794F5803 CRC64;
     MRAPEFHANA MTSTGCDVCL DPQKSFAKLF KRTVILLAGP TGSGKTDVSL RLAPMIDGEI
     ISVDSMQVYR GMDIGTAKVS WEDRQRIPHY LIDICHVQEL FNAVDFYYQA IQACQNILSR
     NKVPILVGGT GFYFHTFLSG PPQGPSPDCD FRDKLALYIQ EHGLSLLYEN LCLKDPEYAR
     TITKNDRNKI VRALEIIHLT GKKVSDHKWT KEASECQEYN CRGWFLSPPK ELLRDTIHLR
     CQRMLEDDLI DEVHRLLKQG IRDNSSASRA IGYREWIEFI DQGSPAESYE AVKQKFITNT
     CHYTKKQRTW FKRYPIFREL PTLGLTAETI AAKIAEDYFL HG