ID   MIAA_STRA5              Reviewed;         296 AA.
AC   Q8CX09;
DT   26-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 100.
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=SAG1213;
OS   Streptococcus agalactiae serotype V (strain ATCC BAA-611 / 2603 V/R).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=208435;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-611 / 2603 V/R;
RX   PubMed=12200547; DOI=10.1073/pnas.182380799;
RA   Tettelin H., Masignani V., Cieslewicz M.J., Eisen J.A., Peterson S.N.,
RA   Wessels M.R., Paulsen I.T., Nelson K.E., Margarit I., Read T.D.,
RA   Madoff L.C., Wolf A.M., Beanan M.J., Brinkac L.M., Daugherty S.C.,
RA   DeBoy R.T., Durkin A.S., Kolonay J.F., Madupu R., Lewis M.R., Radune D.,
RA   Fedorova N.B., Scanlan D., Khouri H.M., Mulligan S., Carty H.A.,
RA   Cline R.T., Van Aken S.E., Gill J., Scarselli M., Mora M., Iacobini E.T.,
RA   Brettoni C., Galli G., Mariani M., Vegni F., Maione D., Rinaudo D.,
RA   Rappuoli R., Telford J.L., Kasper D.L., Grandi G., Fraser C.M.;
RT   "Complete genome sequence and comparative genomic analysis of an emerging
RT   human pathogen, serotype V Streptococcus agalactiae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:12391-12396(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; AE009948; AAN00095.1; -; Genomic_DNA.
DR   RefSeq; NP_688222.1; NC_004116.1.
DR   RefSeq; WP_001226482.1; NC_004116.1.
DR   AlphaFoldDB; Q8CX09; -.
DR   SMR; Q8CX09; -.
DR   STRING; 208435.SAG1213; -.
DR   EnsemblBacteria; AAN00095; AAN00095; SAG1213.
DR   KEGG; sag:SAG1213; -.
DR   PATRIC; fig|208435.3.peg.1219; -.
DR   HOGENOM; CLU_032616_0_1_9; -.
DR   OMA; YAKRQYT; -.
DR   Proteomes; UP000000821; 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; Reference proteome;
KW   Transferase; tRNA processing.
FT   CHAIN           1..296
FT                   /note="tRNA dimethylallyltransferase"
FT                   /id="PRO_0000163981"
FT   REGION          36..39
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         11..18
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   BINDING         13..18
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   SITE            102
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT   SITE            128
FT                   /note="Interaction with substrate tRNA"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ   SEQUENCE   296 AA;  33985 MW;  A9A4B2E586EF9AA2 CRC64;
     MRKIKLIAVV GPTAVGKTAL GIELAKTFNG EIISGDSQQV YQKLDIGTAK ASKEEQEQAY
     HHLIDVREVN ENYSVYDFVK EAKVAIDTII SKGKIPIIVG GTGLYLQSLF EGYHLGGEVN
     QETLMAYREK LESLSDEDLF EKLTEQSIII PQVNRRRAIR ALELAKFGND LQNSESPYDV
     LLIGLNDDRQ VLYDRINRRV DLMMDNGLLD EAKWLYDNYP SVQASKGIGY KELFPYFSKQ
     IPLEEAVDKL KQNTRRFAKR QLTWFRNRMN VEFIMVGEEN YQQKIKRKVS DFLSSK