MIAA_STRPS
ID MIAA_STRPS Reviewed; 294 AA.
AC B2IMY5;
DT 16-JUN-2009, integrated into UniProtKB/Swiss-Prot.
DT 16-JUN-2009, sequence version 2.
DT 03-AUG-2022, entry version 74.
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=SPCG_0628;
OS Streptococcus pneumoniae (strain CGSP14).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=516950;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGSP14;
RX PubMed=19361343; DOI=10.1186/1471-2164-10-158;
RA Ding F., Tang P., Hsu M.-H., Cui P., Hu S., Yu J., Chiu C.-H.;
RT "Genome evolution driven by host adaptations results in a more virulent and
RT antimicrobial-resistant Streptococcus pneumoniae serotype 14.";
RL BMC Genomics 10:158-158(2009).
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=ACB89880.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; CP001033; ACB89880.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_000850193.1; NC_010582.1.
DR AlphaFoldDB; B2IMY5; -.
DR SMR; B2IMY5; -.
DR EnsemblBacteria; ACB89880; ACB89880; SPCG_0628.
DR KEGG; spw:SPCG_0628; -.
DR HOGENOM; CLU_032616_0_1_9; -.
DR Proteomes; UP000001682; 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..294
FT /note="tRNA dimethylallyltransferase"
FT /id="PRO_0000377336"
FT REGION 35..38
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 10..17
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 12..17
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 101
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 127
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ SEQUENCE 294 AA; 33289 MW; 91205848F5F4F869 CRC64;
MKTKIIVIVG PTAVGKTALA IEVAKRFNGE VVSGDSQQVY RGLDIGTAKA SPEEQAAVPH
HLIDVREITE SYSAFDFVSE AKMTIEGIHN RGKLAIIAGG TGLYIQSLLE GYHLGGETPH
EEILAYRASL EPYSDEELAH LVDQAGLEIP QFNRRRAMRA LEIAHFGQDL ENQETLYEPL
IICLDDERSQ LYERINHRVD LMFEAGLLDE AKWLFDHSPN VQAAKGIGYK ELFPYFRGEQ
TLEEASESLK QATRRFAKRQ LTWFRNRMQV TFYQIGESGV QDRILSQIEE FLDD
