ID   ATGT_PYRAE              Reviewed;         495 AA.
AC   Q8ZYH2;
DT   25-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=tRNA-guanine(15) transglycosylase {ECO:0000255|HAMAP-Rule:MF_01634};
DE            EC=2.4.2.48 {ECO:0000255|HAMAP-Rule:MF_01634};
DE   AltName: Full=7-cyano-7-deazaguanine tRNA-ribosyltransferase {ECO:0000255|HAMAP-Rule:MF_01634};
DE   AltName: Full=Archaeal tRNA-guanine transglycosylase {ECO:0000255|HAMAP-Rule:MF_01634};
GN   Name=tgtA {ECO:0000255|HAMAP-Rule:MF_01634}; OrderedLocusNames=PAE0777;
OS   Pyrobaculum aerophilum (strain ATCC 51768 / DSM 7523 / JCM 9630 / CIP
OS   104966 / NBRC 100827 / IM2).
OC   Archaea; Crenarchaeota; Thermoprotei; Thermoproteales; Thermoproteaceae;
OC   Pyrobaculum.
OX   NCBI_TaxID=178306;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51768 / DSM 7523 / JCM 9630 / CIP 104966 / NBRC 100827 / IM2;
RX   PubMed=11792869; DOI=10.1073/pnas.241636498;
RA   Fitz-Gibbon S.T., Ladner H., Kim U.-J., Stetter K.O., Simon M.I.,
RA   Miller J.H.;
RT   "Genome sequence of the hyperthermophilic crenarchaeon Pyrobaculum
RT   aerophilum.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:984-989(2002).
CC   -!- FUNCTION: Exchanges the guanine residue with 7-cyano-7-deazaguanine
CC       (preQ0) at position 15 in the dihydrouridine loop (D-loop) of archaeal
CC       tRNAs. {ECO:0000255|HAMAP-Rule:MF_01634}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=7-cyano-7-deazaguanine + guanosine(15) in tRNA = 7-cyano-7-
CC         carbaguanosine(15) in tRNA + guanine; Xref=Rhea:RHEA:43164,
CC         Rhea:RHEA-COMP:10371, Rhea:RHEA-COMP:10372, ChEBI:CHEBI:16235,
CC         ChEBI:CHEBI:45075, ChEBI:CHEBI:74269, ChEBI:CHEBI:82850; EC=2.4.2.48;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01634};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01634};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01634};
CC   -!- PATHWAY: tRNA modification; archaeosine-tRNA biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_01634}.
CC   -!- SIMILARITY: Belongs to the archaeosine tRNA-ribosyltransferase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01634}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AE009441; AAL63021.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q8ZYH2; -.
DR   SMR; Q8ZYH2; -.
DR   STRING; 178306.PAE0777; -.
DR   EnsemblBacteria; AAL63021; AAL63021; PAE0777.
DR   KEGG; pai:PAE0777; -.
DR   PATRIC; fig|178306.9.peg.568; -.
DR   eggNOG; arCOG00989; Archaea.
DR   HOGENOM; CLU_030083_0_0_2; -.
DR   InParanoid; Q8ZYH2; -.
DR   OMA; FPCSCPV; -.
DR   UniPathway; UPA00393; -.
DR   Proteomes; UP000002439; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0016763; F:pentosyltransferase activity; IEA:InterPro.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IBA:GO_Central.
DR   GO; GO:0002099; P:tRNA wobble guanine modification; IBA:GO_Central.
DR   Gene3D; 3.20.20.105; -; 1.
DR   HAMAP; MF_01634; TgtA_arch; 1.
DR   InterPro; IPR036511; TGT-like_sf.
DR   InterPro; IPR004804; TgtA.
DR   InterPro; IPR002616; tRNA_ribo_trans-like.
DR   Pfam; PF01702; TGT; 1.
DR   SUPFAM; SSF51713; SSF51713; 1.
DR   TIGRFAMs; TIGR00432; arcsn_tRNA_tgt; 1.
DR   TIGRFAMs; TIGR00449; tgt_general; 1.
PE   3: Inferred from homology;
KW   Glycosyltransferase; Metal-binding; Reference proteome; Transferase;
KW   tRNA processing; Zinc.
FT   CHAIN           1..495
FT                   /note="tRNA-guanine(15) transglycosylase"
FT                   /id="PRO_0000247881"
FT   ACT_SITE        83
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
FT   BINDING         118
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
FT   BINDING         273
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
FT   BINDING         278
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
SQ   SEQUENCE   495 AA;  56923 MW;  8E8A6A24613BAECF CRC64;
     MSFEIIAKDL AGRVGKLYTK SGVIETPALF PVVDPRKQEL PSAVIERYFG QIITNAYFVY
     RLTGGRAVDI KKVLSWNAVL MTDSGAYQIL RYGSVEVDPD EILQFQARIG SDIGVILDLP
     FDYEEPYESA LLKVEETIRR AKRASAMLDK LEDMLVVGPI QGGLYLDLLA TSAREISKLG
     FHIFAVGSPT TLLEEYRFDL LLEVILHVKA NILREAPLHL FGAGHPLVLP FAVALGVDLF
     DSASYILYAR DDRIMLRDRT LRLEDVKTDY LPCSTKLCHK PVKELREMPH EERIQLIAEH
     NLAILREELL EIKQRIHEGT LWEYLEIKAR AHPTLYRFLR SLGRYKRLIE EYDPETHPET
     HGLFFYQDTA ESRPEPHRHW SRTANLYTPS KVAIVIRAGE KPYNKSWEYR YLKSLVGDRA
     HVLFYDPVFG LVPEEVAEIY PLSQNEAEGE SEAARAFAYE WLNNYDVILL YRVDLPMLSK
     KVIPLRSLDD VLHYI