MIAA_RICRO
ID MIAA_RICRO Reviewed; 363 AA.
AC B0BXQ1;
DT 16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 86.
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=RrIowa_0784;
OS Rickettsia rickettsii (strain Iowa).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX NCBI_TaxID=452659;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Iowa;
RX PubMed=18025092; DOI=10.1128/iai.00952-07;
RA Ellison D.W., Clark T.R., Sturdevant D.E., Virtaneva K., Porcella S.F.,
RA Hackstadt T.;
RT "Genomic comparison of virulent Rickettsia rickettsii Sheila Smith and
RT avirulent Rickettsia rickettsii Iowa.";
RL Infect. Immun. 76:542-550(2008).
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; CP000766; ABY72627.1; -; Genomic_DNA.
DR RefSeq; WP_012150844.1; NC_010263.3.
DR AlphaFoldDB; B0BXQ1; -.
DR SMR; B0BXQ1; -.
DR STRING; 452659.RrIowa_0784; -.
DR EnsemblBacteria; ABY72627; ABY72627; RrIowa_0784.
DR GeneID; 45539227; -.
DR KEGG; rrj:RrIowa_0784; -.
DR eggNOG; COG0324; Bacteria.
DR HOGENOM; CLU_032616_0_1_5; -.
DR OMA; YAKRQYT; -.
DR Proteomes; UP000000796; 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; 2.
DR TIGRFAMs; TIGR00174; miaA; 1.
PE 3: Inferred from homology;
KW ATP-binding; Magnesium; Nucleotide-binding; Transferase; tRNA processing.
FT CHAIN 1..363
FT /note="tRNA dimethylallyltransferase"
FT /id="PRO_0000377296"
FT REGION 90..93
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT REGION 214..218
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 65..72
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 67..72
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 156
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ SEQUENCE 363 AA; 41505 MW; BB1F9B4771DA8771 CRC64;
MLACNDDTSL YLLVKQVTKK EIYSNDLENG NVKRGASTHS LYLIGDPKFC RNNSSKQKSI
IILCGPTASG KSYLGHELAK AYNGEIINID SMQVYKEIPI ITASPPKSYK TEILYHLYNF
LSMTEDFSVI KYLKLATEKI KEITDRGKLP ILIGGTGLYI NSLVFGYNNI PDISEDLQAQ
VRNLHVKIGN IELWGKLEKF DPLAASKINQ NDTQRLIRAY EVFMQTGKSI FSFQTLPKEQ
ILSDFNCKII FLNPERKFLY KTCDERLDKI FKEGAIDEIA LIKKQFAPKD YTNLKAVGIK
EILAYLNGNL TLDEALNAAQ IRTRQYAKRQ VTWFKNQIQD KITLEYANQE EFTQTLKNSF
KTI