ID   TSAD_METAI              Reviewed;         352 AA.
AC   Q2VNJ2;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   10-JAN-2006, sequence version 1.
DT   03-AUG-2022, entry version 65.
DE   RecName: Full=tRNA N6-adenosine threonylcarbamoyltransferase {ECO:0000255|HAMAP-Rule:MF_01445};
DE            EC=2.3.1.234 {ECO:0000255|HAMAP-Rule:MF_01445};
DE   AltName: Full=N6-L-threonylcarbamoyladenine synthase {ECO:0000255|HAMAP-Rule:MF_01445};
DE            Short=t(6)A synthase {ECO:0000255|HAMAP-Rule:MF_01445};
DE   AltName: Full=t(6)A37 threonylcarbamoyladenosine biosynthesis protein TsaD {ECO:0000255|HAMAP-Rule:MF_01445};
DE   AltName: Full=tRNA threonylcarbamoyladenosine biosynthesis protein TsaD {ECO:0000255|HAMAP-Rule:MF_01445};
GN   Name=tsaD {ECO:0000255|HAMAP-Rule:MF_01445}; Synonyms=gcp; ORFNames=orf99;
OS   Methylocapsa acidiphila.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Beijerinckiaceae; Methylocapsa.
OX   NCBI_TaxID=133552;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Ricke P., Kube M., Nakagawa S., Erkel C., Reinhardt R., Liesack W.;
RT   "First genome data from uncultured upland soil cluster a methanotrophs
RT   provide further evidence for a close phylogenetic relationship to
RT   Methylocapsa acidiphila B2 and high-affinity methanotrophy based on pMMO.";
RL   Submitted (JUN-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Required for the formation of a threonylcarbamoyl group on
CC       adenosine at position 37 (t(6)A37) in tRNAs that read codons beginning
CC       with adenine. Is involved in the transfer of the threonylcarbamoyl
CC       moiety of threonylcarbamoyl-AMP (TC-AMP) to the N6 group of A37,
CC       together with TsaE and TsaB. TsaD likely plays a direct catalytic role
CC       in this reaction. {ECO:0000255|HAMAP-Rule:MF_01445}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(37) in tRNA + L-threonylcarbamoyladenylate = AMP +
CC         H(+) + N(6)-L-threonylcarbamoyladenosine(37) in tRNA;
CC         Xref=Rhea:RHEA:37059, Rhea:RHEA-COMP:10162, Rhea:RHEA-COMP:10163,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:73682, ChEBI:CHEBI:74411,
CC         ChEBI:CHEBI:74418, ChEBI:CHEBI:456215; EC=2.3.1.234;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01445};
CC   -!- COFACTOR:
CC       Name=Fe(2+); Xref=ChEBI:CHEBI:29033;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01445};
CC       Note=Binds 1 Fe(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01445};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01445}.
CC   -!- SIMILARITY: Belongs to the KAE1 / TsaD family. {ECO:0000255|HAMAP-
CC       Rule:MF_01445}.
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DR   EMBL; CT005238; CAJ01640.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q2VNJ2; -.
DR   SMR; Q2VNJ2; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0061711; F:N(6)-L-threonylcarbamoyladenine synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0002949; P:tRNA threonylcarbamoyladenosine modification; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01445; TsaD; 1.
DR   InterPro; IPR043129; ATPase_NBD.
DR   InterPro; IPR000905; Gcp-like_dom.
DR   InterPro; IPR017861; KAE1/TsaD.
DR   InterPro; IPR022450; TsaD.
DR   PANTHER; PTHR11735; PTHR11735; 1.
DR   PANTHER; PTHR11735:SF6; PTHR11735:SF6; 1.
DR   Pfam; PF00814; TsaD; 1.
DR   PRINTS; PR00789; OSIALOPTASE.
DR   SUPFAM; SSF53067; SSF53067; 2.
DR   TIGRFAMs; TIGR00329; gcp_kae1; 1.
DR   TIGRFAMs; TIGR03723; T6A_TsaD_YgjD; 1.
PE   3: Inferred from homology;
KW   Acyltransferase; Cytoplasm; Iron; Metal-binding; Transferase;
KW   tRNA processing.
FT   CHAIN           1..352
FT                   /note="tRNA N6-adenosine threonylcarbamoyltransferase"
FT                   /id="PRO_0000303425"
FT   BINDING         115
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         119
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         137..141
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         183
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         281
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
FT   BINDING         309
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01445"
SQ   SEQUENCE   352 AA;  36956 MW;  FDD84EFA02F6853A CRC64;
     MRVLGIETTC DETAAAVVRL EPGGAGEILS NEVMSQIAEH AAYGGVVPEI AARAHIDIID
     RLVLRALAHA GTRLADLDGI AAAAGPGLIG GVIVGLTTAK ALALASRKPF IAVNHLEAHA
     LTARLTDALE FPYLLLLVSG GHTQLVAVRG VGDYLRLGST VDDAVGEAFD KIAKMLGLPY
     PGGPEVEKRA AEGNAARFDF PRPMLGRPKP DFSLSGLKTA VRLEMERLNS LSPTDVADLC
     ASFQAAVVDM IIDRSRVGLR LFRETVGPSN AMVVAGGVAA NGAIRRALMR FCGESGMRLV
     LPPPQLCTDN GAMIAWAGLE RLSLGLIDDL TFAARARWPL DANAEAVHHG KA