ID A0A1Q7MG20_9CREN Unreviewed; 524 AA.
AC A0A1Q7MG20;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 28.
DE RecName: Full=tRNA-guanine(15) transglycosylase {ECO:0000256|HAMAP-Rule:MF_01634};
DE EC=2.4.2.48 {ECO:0000256|HAMAP-Rule:MF_01634};
DE AltName: Full=7-cyano-7-deazaguanine tRNA-ribosyltransferase {ECO:0000256|HAMAP-Rule:MF_01634};
DE AltName: Full=Archaeal tRNA-guanine transglycosylase {ECO:0000256|HAMAP-Rule:MF_01634};
GN Name=tgtA {ECO:0000256|HAMAP-Rule:MF_01634};
GN ORFNames=AUI97_09185 {ECO:0000313|EMBL:OLD11576.1};
OS Crenarchaeota archaeon 13_1_40CM_3_52_17.
OC Archaea; Thermoproteota.
OX NCBI_TaxID=1805096 {ECO:0000313|EMBL:OLD11576.1, ECO:0000313|Proteomes:UP000185971};
RN [1] {ECO:0000313|EMBL:OLD11576.1, ECO:0000313|Proteomes:UP000185971}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX PubMed=27843720;
RA Butterfield C.N., Li Z., Andeer P.F., Spaulding S., Thomas B.C., Singh A.,
RA Hettich R.L., Suttle K.B., Probst A.J., Tringe S.G., Northen T., Pan C.,
RA Banfield J.F.;
RT "Proteogenomic analyses indicate bacterial methylotrophy and archaeal
RT heterotrophy are prevalent below the grass root zone.";
RL PeerJ 4:E2687-E2687(2016).
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:0000256|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:0000256|HAMAP-Rule:MF_01634};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01634};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_01634};
CC -!- PATHWAY: tRNA modification; archaeosine-tRNA biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_01634}.
CC -!- SIMILARITY: Belongs to the archaeosine tRNA-ribosyltransferase family.
CC {ECO:0000256|HAMAP-Rule:MF_01634}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_01634}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OLD11576.1}.
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DR EMBL; MNGN01000061; OLD11576.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Q7MG20; -.
DR STRING; 1805096.AUI97_09185; -.
DR UniPathway; UPA00393; -.
DR Proteomes; UP000185971; Unassembled WGS sequence.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016763; F:pentosyltransferase activity; IEA:InterPro.
DR GO; GO:0006400; P:tRNA modification; IEA:InterPro.
DR Gene3D; 3.20.20.105; Queuine tRNA-ribosyltransferase-like; 1.
DR Gene3D; 3.40.50.10630; Uracil-DNA glycosylase-like; 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 NCBIfam; TIGR00432; arcsn_tRNA_tgt; 1.
DR NCBIfam; TIGR00449; tgt_general; 1.
DR PANTHER; PTHR46499; QUEUINE TRNA-RIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR46499:SF1; QUEUINE TRNA-RIBOSYLTRANSFERASE; 1.
DR Pfam; PF01702; TGT; 1.
DR SUPFAM; SSF88802; Pre-PUA domain; 1.
DR SUPFAM; SSF51713; tRNA-guanine transglycosylase; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_01634}; Metal-binding {ECO:0000256|HAMAP-Rule:MF_01634};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01634};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_01634}; Zinc {ECO:0000256|HAMAP-Rule:MF_01634}.
FT DOMAIN 12..330
FT /note="tRNA-guanine(15) transglycosylase-like"
FT /evidence="ECO:0000259|Pfam:PF01702"
FT ACT_SITE 85
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01634"
FT BINDING 120
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01634"
FT BINDING 272
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01634"
FT BINDING 274
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01634"
FT BINDING 277
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01634"
SQ SEQUENCE 524 AA; 59155 MW; 8170238096C0E1BF CRC64;
MSFQVQGKDL LGRIGTLTTK SGSFQTPHMF PVVDPNLPII DPKFFREAGI RAIMTNAYLL
KRARPGQPPK DVHGTLDFKE TVATDSGAYQ ILEYGHVGVK PAEIVAYQEK IGTDIGVILD
FPTGFHSDAR RAGWTVDETV RRADEALKRI KRKDILWVGP VQGGVHIKEV ARSALEMGKR
PFSIYALGSP TELMEAQRFD VLVDMIVAAK KGLPHSRPLH LFGAGHPAMF PFIVALGCDM
FDSAAYALYA RTGRYLTSEG TQELAEIEEF SCMCRVCDRT TPAEMRRLDQ PERERLLSKH
NLLACFSELR RIREAIRTGH LWDLLEHRTY ANPAFKKFLA KIIHHSSFLE RFTPTVKPRG
ISHFGEASDS RPEMVRFNVR RARVPVERRK AVVLLAGRWR RPYHEDPRNL PIVSKLANRS
NVSICFYTIP FGPVPMELDE TFPLAQTESF DSHDPIMYKQ RAEQVDAWVK RLSPKQVFLV
SEGDYGVALG KELAKATRQL KVIGIQAKGS KPDRTVGSII RLLR
//
