MIAA_GLOVI
ID MIAA_GLOVI Reviewed; 302 AA.
AC Q7MBC1;
DT 26-APR-2004, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2003, sequence version 1.
DT 03-AUG-2022, entry version 108.
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=gll3248;
OS Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC Gloeobacter.
OX NCBI_TaxID=251221;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29082 / PCC 7421;
RX PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA Tabata S.;
RT "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT cyanobacterium that lacks thylakoids.";
RL DNA Res. 10:137-145(2003).
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; BA000045; BAC91189.1; -; Genomic_DNA.
DR RefSeq; NP_926194.1; NC_005125.1.
DR RefSeq; WP_011143238.1; NC_005125.1.
DR AlphaFoldDB; Q7MBC1; -.
DR SMR; Q7MBC1; -.
DR STRING; 251221.35213819; -.
DR EnsemblBacteria; BAC91189; BAC91189; BAC91189.
DR KEGG; gvi:gll3248; -.
DR PATRIC; fig|251221.4.peg.3277; -.
DR eggNOG; COG0324; Bacteria.
DR HOGENOM; CLU_032616_0_1_3; -.
DR InParanoid; Q7MBC1; -.
DR OMA; YAKRQYT; -.
DR OrthoDB; 1069591at2; -.
DR PhylomeDB; Q7MBC1; -.
DR Proteomes; UP000000557; Chromosome.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0052381; F:tRNA dimethylallyltransferase activity; IBA:GO_Central.
DR GO; GO:0006400; P:tRNA modification; IBA:GO_Central.
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..302
FT /note="tRNA dimethylallyltransferase"
FT /id="PRO_0000163922"
FT REGION 34..37
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 9..16
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT BINDING 11..16
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
FT SITE 100
FT /note="Interaction with substrate tRNA"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00185"
SQ SEQUENCE 302 AA; 34076 MW; 61DE124CBE0C3113 CRC64;
MKKIVVVCGP TAAGKSQLGM HLAQHLGVPV LSADSRQVYR EFDIGTAKPT REEQRRVEHC
LIDVAWPTEH FNVARYRELA DAEIDRLTRQ GKPALLVGGS GLYLRAVSGG LEPPAVPPDP
ALRARLAVER LDALYQRLQQ LDPESAGRIH PNDQVRIERA LEVCLTTGQP LSAQRRLRAR
DFSLLALGVG SGREALVRRI EQRTHRMIEA GWLEEVEYLR AKYGPDLPLL STLGYAELGA
YLEERWDLAE ALQQIVVHTR QFAKRQMTWF RAEPDVHWLD ESAGRQTLEQ QSIEQVERFL
AG
