ID A0A195BHF9_9HYME Unreviewed; 407 AA.
AC A0A195BHF9;
DT 05-OCT-2016, integrated into UniProtKB/TrEMBL.
DT 05-OCT-2016, sequence version 1.
DT 24-JAN-2024, entry version 28.
DE RecName: Full=Queuine tRNA-ribosyltransferase catalytic subunit 1 {ECO:0000256|HAMAP-Rule:MF_03218};
DE EC=2.4.2.64 {ECO:0000256|HAMAP-Rule:MF_03218};
DE AltName: Full=Guanine insertion enzyme {ECO:0000256|HAMAP-Rule:MF_03218};
DE AltName: Full=tRNA-guanine transglycosylase {ECO:0000256|HAMAP-Rule:MF_03218};
GN ORFNames=ALC53_05568 {ECO:0000313|EMBL:KYM84191.1};
OS Atta colombica.
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC Neoptera; Endopterygota; Hymenoptera; Apocrita; Aculeata; Formicoidea;
OC Formicidae; Myrmicinae; Atta.
OX NCBI_TaxID=520822 {ECO:0000313|EMBL:KYM84191.1, ECO:0000313|Proteomes:UP000078540};
RN [1] {ECO:0000313|EMBL:KYM84191.1, ECO:0000313|Proteomes:UP000078540}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Treedump-2 {ECO:0000313|EMBL:KYM84191.1};
RC TISSUE=Whole body {ECO:0000313|EMBL:KYM84191.1};
RA Nygaard S., Hu H., Boomsma J., Zhang G.;
RT "Atta colombica WGS genome.";
RL Submitted (SEP-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Catalytic subunit of the queuine tRNA-ribosyltransferase
CC (TGT) that catalyzes the base-exchange of a guanine (G) residue with
CC queuine (Q) at position 34 (anticodon wobble position) in tRNAs with
CC GU(N) anticodons (tRNA-Asp, -Asn, -His and -Tyr), resulting in the
CC hypermodified nucleoside queuosine (7-(((4,5-cis-dihydroxy-2-
CC cyclopenten-1-yl)amino)methyl)-7-deazaguanosine). Catalysis occurs
CC through a double-displacement mechanism. The nucleophile active site
CC attacks the C1' of nucleotide 34 to detach the guanine base from the
CC RNA, forming a covalent enzyme-RNA intermediate. The proton acceptor
CC active site deprotonates the incoming queuine, allowing a nucleophilic
CC attack on the C1' of the ribose to form the product.
CC {ECO:0000256|HAMAP-Rule:MF_03218}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=guanosine(34) in tRNA + queuine = guanine + queuosine(34) in
CC tRNA; Xref=Rhea:RHEA:16633, Rhea:RHEA-COMP:10341, Rhea:RHEA-
CC COMP:18571, ChEBI:CHEBI:16235, ChEBI:CHEBI:17433, ChEBI:CHEBI:74269,
CC ChEBI:CHEBI:194431; EC=2.4.2.64; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_03218};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_03218};
CC -!- SUBUNIT: Heterodimer of a catalytic subunit and an accessory subunit.
CC {ECO:0000256|HAMAP-Rule:MF_03218}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03218}.
CC -!- SIMILARITY: Belongs to the queuine tRNA-ribosyltransferase family.
CC {ECO:0000256|HAMAP-Rule:MF_03218}.
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DR EMBL; KQ976467; KYM84191.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A195BHF9; -.
DR STRING; 520822.A0A195BHF9; -.
DR Proteomes; UP000078540; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0008479; F:tRNA-guanosine(34) queuine transglycosylase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0101030; P:tRNA-guanine transglycosylation; IEA:UniProtKB-UniRule.
DR Gene3D; 3.20.20.105; Queuine tRNA-ribosyltransferase-like; 1.
DR HAMAP; MF_00168; Q_tRNA_Tgt; 1.
DR InterPro; IPR004803; TGT.
DR InterPro; IPR036511; TGT-like_sf.
DR InterPro; IPR002616; tRNA_ribo_trans-like.
DR NCBIfam; TIGR00430; Q_tRNA_tgt; 1.
DR NCBIfam; TIGR00449; tgt_general; 1.
DR PANTHER; PTHR43530; QUEUINE TRNA-RIBOSYLTRANSFERASE CATALYTIC SUBUNIT 1; 1.
DR PANTHER; PTHR43530:SF1; QUEUINE TRNA-RIBOSYLTRANSFERASE CATALYTIC SUBUNIT 1; 1.
DR Pfam; PF01702; TGT; 1.
DR SUPFAM; SSF51713; tRNA-guanine transglycosylase; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_03218};
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_03218};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_03218}; Reference proteome {ECO:0000313|Proteomes:UP000078540};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_03218};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_03218}; Zinc {ECO:0000256|HAMAP-Rule:MF_03218}.
FT DOMAIN 33..382
FT /note="tRNA-guanine(15) transglycosylase-like"
FT /evidence="ECO:0000259|Pfam:PF01702"
FT REGION 266..272
FT /note="RNA binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT REGION 290..294
FT /note="RNA binding; important for wobble base 34
FT recognition"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 111
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 285
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 111..115
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 165
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 208
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 235
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 323
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 325
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 328
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 353
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
SQ SEQUENCE 407 AA; 46000 MW; F94CF4E570E090CF CRC64;
MTINAGFSRS PVEMTNRKTP LIFEVLAECK TTKARTGRMT LVHHHVDTPV FMPVGTQGTL
KGLLPQQLEQ LDCQIILGNT YHLGNRPGAD ILRKAGGLHK FMNWKRALLT DSGGFQMVSL
LQLAEITEEG VKFKSPYNES ECMLTPEHSI QIQNAIGADI IMQLDDVVSS TLTGPRVEEA
MHRTIRWLDR CLLAHERLDE QSIFPIVQGG LNPELRSECA RQLIKREVNG YAVGGLSGGE
SKDDFWRMVH LSTNILPKNK PRYLMGVGFA IDLIICSALG IDMYDCVFPT RTARFGCALI
KTGQLNLKQI QYKKDLKPID ESCECNTCKT YSRAYLHQIA TVETVSCHLL TVHNIAFQMK
LMQDIRDSIK EQRFPRFIQD YMLIVYPNKD YPTWIINALQ AVNVTLL
//
