ID   ATGT_SACS2              Reviewed;         503 AA.
AC   Q980L7;
DT   25-JUL-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 1.
DT   03-AUG-2022, entry version 108.
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=SSO0274;
OS   Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
OS   (Sulfolobus solfataricus).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Saccharolobus.
OX   NCBI_TaxID=273057;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35092 / DSM 1617 / JCM 11322 / P2;
RX   PubMed=11427726; DOI=10.1073/pnas.141222098;
RA   She Q., Singh R.K., Confalonieri F., Zivanovic Y., Allard G., Awayez M.J.,
RA   Chan-Weiher C.C.-Y., Clausen I.G., Curtis B.A., De Moors A., Erauso G.,
RA   Fletcher C., Gordon P.M.K., Heikamp-de Jong I., Jeffries A.C., Kozera C.J.,
RA   Medina N., Peng X., Thi-Ngoc H.P., Redder P., Schenk M.E., Theriault C.,
RA   Tolstrup N., Charlebois R.L., Doolittle W.F., Duguet M., Gaasterland T.,
RA   Garrett R.A., Ragan M.A., Sensen C.W., Van der Oost J.;
RT   "The complete genome of the crenarchaeon Sulfolobus solfataricus P2.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:7835-7840(2001).
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}.
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DR   EMBL; AE006641; AAK40613.1; -; Genomic_DNA.
DR   PIR; F90169; F90169.
DR   RefSeq; WP_009990551.1; NC_002754.1.
DR   AlphaFoldDB; Q980L7; -.
DR   SMR; Q980L7; -.
DR   STRING; 273057.SSO0274; -.
DR   EnsemblBacteria; AAK40613; AAK40613; SSO0274.
DR   GeneID; 44129246; -.
DR   KEGG; sso:SSO0274; -.
DR   PATRIC; fig|273057.12.peg.269; -.
DR   eggNOG; arCOG00989; Archaea.
DR   HOGENOM; CLU_030083_0_0_2; -.
DR   InParanoid; Q980L7; -.
DR   OMA; FPCSCPV; -.
DR   PhylomeDB; Q980L7; -.
DR   UniPathway; UPA00393; -.
DR   Proteomes; UP000001974; 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..503
FT                   /note="tRNA-guanine(15) transglycosylase"
FT                   /id="PRO_0000247885"
FT   ACT_SITE        86
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
FT   BINDING         121
FT                   /ligand="substrate"
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"
FT   BINDING         280
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
FT   BINDING         283
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01634"
SQ   SEQUENCE   503 AA;  58318 MW;  B933A240FB554BCE CRC64;
     MTVFEVKYED LAGRIGTLRT RSGTLETPAF FPVINVLKKD EISIDEIRNI GFKNFITNSY
     ILYKNNYIKD DIHKELRSEE MIIMTDSGAY QILEYGEIGI TNLQIVNYQL KIKPDIGVIL
     DLPTGNINDY DNAKKTVYET LKRAEEASEI IVKNQDNNII WVYPIQGGRY LDLVKTSAEG
     LSKFEHIYNM AALGSPTVLL EKYMYDTVID MIYTAKSNIK RGIPFHLFGG GLPHIIPFAV
     ALGVDSFDSA SYIIYARDNR YITRTRVYKL EDLEYFPCSC PICSKYTPKD LLEMNEKERT
     KALAIHNLYT ILEEFKATKQ AIKEGRLFEY LQEKAYSHPA VYSAFKRLMK YKDYLEKFDP
     RIRGDPKGLF LFDGNSLHRP EIIRHSRFLE RYIQKKDKIS IYCYDKAISD TAYDFKEKIR
     EKIADRNESD VFIAVPFFGL IPLEISDSYP LSQFEIPNEI DEDVIDDMKT KIISFLRRNN
     YQKVELINCE KLGLHIDSIS TSS