ID F2N871_CORGP Unreviewed; 379 AA.
AC F2N871;
DT 31-MAY-2011, integrated into UniProtKB/TrEMBL.
DT 31-MAY-2011, sequence version 1.
DT 27-MAR-2024, entry version 72.
DE RecName: Full=Queuine tRNA-ribosyltransferase {ECO:0000256|HAMAP-Rule:MF_00168};
DE EC=2.4.2.29 {ECO:0000256|HAMAP-Rule:MF_00168};
DE AltName: Full=Guanine insertion enzyme {ECO:0000256|HAMAP-Rule:MF_00168};
DE AltName: Full=tRNA-guanine transglycosylase {ECO:0000256|HAMAP-Rule:MF_00168};
GN Name=tgt {ECO:0000256|HAMAP-Rule:MF_00168};
GN OrderedLocusNames=Corgl_1148 {ECO:0000313|EMBL:AEB07254.1};
OS Coriobacterium glomerans (strain ATCC 49209 / DSM 20642 / JCM 10262 / PW2).
OC Bacteria; Actinomycetota; Coriobacteriia; Coriobacteriales;
OC Coriobacteriaceae; Coriobacterium.
OX NCBI_TaxID=700015 {ECO:0000313|EMBL:AEB07254.1, ECO:0000313|Proteomes:UP000006851};
RN [1] {ECO:0000313|Proteomes:UP000006851}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=ATCC 49209 / DSM 20642 / JCM 10262 / PW2
RC {ECO:0000313|Proteomes:UP000006851};
RX PubMed=23961308; DOI=10.4056/sigs.3507020;
RA Stackebrandt E., Zeytun A., Lapidus A., Nolan M., Lucas S., Hammon N.,
RA Deshpande S., Cheng J.F., Tapia R., Goodwin L.A., Pitluck S., Liolios K.,
RA Pagani I., Ivanova N., Mavromatis K., Mikhailova N., Huntemann M., Pati A.,
RA Chen A., Palaniappan K., Chang Y.J., Land M., Hauser L., Rohde M.,
RA Pukall R., Goker M., Detter J.C., Woyke T., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Coriobacterium glomerans type strain (PW2(T))
RT from the midgut of Pyrrhocoris apterus L. (red soldier bug).";
RL Stand. Genomic Sci. 8:15-25(2013).
CC -!- FUNCTION: Catalyzes the base-exchange of a guanine (G) residue with the
CC queuine precursor 7-aminomethyl-7-deazaguanine (PreQ1) at position 34
CC (anticodon wobble position) in tRNAs with GU(N) anticodons (tRNA-Asp,
CC -Asn, -His and -Tyr). Catalysis occurs through a double-displacement
CC mechanism. The nucleophile active site attacks the C1' of nucleotide 34
CC to detach the guanine base from the RNA, forming a covalent enzyme-RNA
CC intermediate. The proton acceptor active site deprotonates the incoming
CC PreQ1, allowing a nucleophilic attack on the C1' of the ribose to form
CC the product. After dissociation, two additional enzymatic reactions on
CC the tRNA convert PreQ1 to queuine (Q), resulting in the hypermodified
CC nucleoside queuosine (7-(((4,5-cis-dihydroxy-2-cyclopenten-1-
CC yl)amino)methyl)-7-deazaguanosine). {ECO:0000256|HAMAP-Rule:MF_00168}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=7-aminomethyl-7-carbaguanine + guanosine(34) in tRNA = 7-
CC aminomethyl-7-carbaguanosine(34) in tRNA + guanine;
CC Xref=Rhea:RHEA:24104, Rhea:RHEA-COMP:10341, Rhea:RHEA-COMP:10342,
CC ChEBI:CHEBI:16235, ChEBI:CHEBI:58703, ChEBI:CHEBI:74269,
CC ChEBI:CHEBI:82833; EC=2.4.2.29; Evidence={ECO:0000256|HAMAP-
CC Rule:MF_00168};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00168};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00168};
CC -!- PATHWAY: tRNA modification; tRNA-queuosine biosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00168}.
CC -!- SUBUNIT: Homodimer. Within each dimer, one monomer is responsible for
CC RNA recognition and catalysis, while the other monomer binds to the
CC replacement base PreQ1. {ECO:0000256|HAMAP-Rule:MF_00168}.
CC -!- SIMILARITY: Belongs to the queuine tRNA-ribosyltransferase family.
CC {ECO:0000256|HAMAP-Rule:MF_00168}.
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; CP002628; AEB07254.1; -; Genomic_DNA.
DR RefSeq; WP_013708997.1; NC_015389.1.
DR AlphaFoldDB; F2N871; -.
DR STRING; 700015.Corgl_1148; -.
DR KEGG; cgo:Corgl_1148; -.
DR eggNOG; COG0343; Bacteria.
DR HOGENOM; CLU_022060_0_1_11; -.
DR OrthoDB; 9805417at2; -.
DR UniPathway; UPA00392; -.
DR Proteomes; UP000006851; Chromosome.
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:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0101030; P:tRNA-guanine transglycosylation; IEA:InterPro.
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; PTHR46499; QUEUINE TRNA-RIBOSYLTRANSFERASE; 1.
DR PANTHER; PTHR46499:SF1; QUEUINE TRNA-RIBOSYLTRANSFERASE; 1.
DR Pfam; PF01702; TGT; 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_00168}; Metal-binding {ECO:0000256|HAMAP-Rule:MF_00168};
KW Queuosine biosynthesis {ECO:0000256|HAMAP-Rule:MF_00168};
KW Reference proteome {ECO:0000313|Proteomes:UP000006851};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00168};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_00168}; Zinc {ECO:0000256|HAMAP-Rule:MF_00168}.
FT DOMAIN 19..372
FT /note="tRNA-guanine(15) transglycosylase-like"
FT /evidence="ECO:0000259|Pfam:PF01702"
FT REGION 253..259
FT /note="RNA binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT REGION 277..281
FT /note="RNA binding; important for wobble base 34
FT recognition"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT ACT_SITE 96
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT ACT_SITE 272
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 96..100
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 151
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 193
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 221
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 310
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 312
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 315
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
FT BINDING 342
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00168"
SQ SEQUENCE 379 AA; 41331 MW; 6606E52349140908 CRC64;
MDQIRFGFDV VAREPGGSAR AAVLATPHGD IETPIFMPVG TKATVKGIPT ATVRELGAQI
VLANTYHLSM RPGPDVIAAL GGIHRFMNWH GPILTDSGGF QVFSHKDAVT LSNEGVRFIA
GDYDGSHVFW SPEDNMAIAE KLGADICMQL DQCPGYPAER SFVERAVELS SAWAERCWRA
HSRCDQALFG IVQGGMHLDL RLRSLAHLES CGDFIGYGIG GYSVGESHET MFQTLAPLVS
EHMPQSKPRY LMGVGNPTTL LKAIAAGVDM FDCVLPTRTG RMGTAFSSEG RLNLRNARFA
LDDAPIDPGC ACPVCSGGYT RALIRHLVVQ REMLGGILLS EHNIFYLLDL MKRARRAIID
GRYSAFLSQW LDSPAAQDY
//
