MIAA_DESPS
ID MIAA_DESPS Reviewed; 314 AA.
AC Q6ALW6;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 13-SEP-2004, sequence version 1.
DT 03-AUG-2022, entry version 98.
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=DP1930;
OS Desulfotalea psychrophila (strain LSv54 / DSM 12343).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfobacterales;
OC Desulfocapsaceae; Desulfotalea.
OX NCBI_TaxID=177439;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12343 / LSv54;
RX PubMed=15305914; DOI=10.1111/j.1462-2920.2004.00665.x;
RA Rabus R., Ruepp A., Frickey T., Rattei T., Fartmann B., Stark M., Bauer M.,
RA Zibat A., Lombardot T., Becker I., Amann J., Gellner K., Teeling H.,
RA Leuschner W.D., Gloeckner F.-O., Lupas A.N., Amann R., Klenk H.-P.;
RT "The genome of Desulfotalea psychrophila, a sulfate-reducing bacterium from
RT permanently cold Arctic sediments.";
RL Environ. Microbiol. 6:887-902(2004).
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; CR522870; CAG36659.1; -; Genomic_DNA.
DR RefSeq; WP_011189171.1; NC_006138.1.
DR AlphaFoldDB; Q6ALW6; -.
DR SMR; Q6ALW6; -.
DR STRING; 177439.DP1930; -.
DR PRIDE; Q6ALW6; -.
DR EnsemblBacteria; CAG36659; CAG36659; DP1930.
DR KEGG; dps:DP1930; -.
DR eggNOG; COG0324; Bacteria.
DR HOGENOM; CLU_032616_0_1_7; -.
DR OMA; YAKRQYT; -.
DR OrthoDB; 1069591at2; -.
DR Proteomes; UP000000602; 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; Reference proteome;
KW Transferase; tRNA processing.
FT CHAIN 1..314
FT /note="tRNA dimethylallyltransferase"
FT /id="PRO_0000163911"
FT REGION 38..41
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 13..20
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 15..20
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 104
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 126
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ SEQUENCE 314 AA; 36269 MW; FF7EE8523ABED921 CRC64;
MEKIKQPVLV LVGPTAIGKT ALSLQLARQF SCEVVSMDSM QVYRHMDIGT AKISKEEQGE
VPHHLLDIVE PDEHYDASMY CRDALRTITE IHARGHIPLV TGGTGLYLQS LTKGFFEGPP
SDSAVRERLQ EELDNLGPEE MHARLEQLDP LSAQRLHPND SYRVMRALEI FAITGKPWSQ
LLSQHKPENQ FANMLQIGLT CDRPLLYDRI NMRTQIMLDA GLEEEVRGLL DMGYSRELRS
MGSIGYKHMA NFIFGDWEFE EMKTLLARDT RRYAKRQYTW FNKDEDLHWY QKESKAEIVD
RVGQWLEDQL SKNL
