ID A0A0G4M0M2_9PEZI Unreviewed; 458 AA.
AC A0A0G4M0M2;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 24-JAN-2024, entry version 33.
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=BN1708_004495 {ECO:0000313|EMBL:CRK27833.1};
OS Verticillium longisporum.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Hypocreomycetidae; Glomerellales; Plectosphaerellaceae; Verticillium.
OX NCBI_TaxID=100787 {ECO:0000313|EMBL:CRK27833.1, ECO:0000313|Proteomes:UP000044602};
RN [1] {ECO:0000313|EMBL:CRK27833.1, ECO:0000313|Proteomes:UP000044602}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=VL1 {ECO:0000313|EMBL:CRK27833.1};
RA Wang D.B., Wang M.;
RL Submitted (MAY-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; CVQH01020529; CRK27833.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0G4M0M2; -.
DR STRING; 100787.A0A0G4M0M2; -.
DR OrthoDB; 167782at2759; -.
DR Proteomes; UP000044602; 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:UP000044602};
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 75..431
FT /note="tRNA-guanine(15) transglycosylase-like"
FT /evidence="ECO:0000259|Pfam:PF01702"
FT REGION 309..315
FT /note="RNA binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT REGION 333..337
FT /note="RNA binding; important for wobble base 34
FT recognition"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 153
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 328
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 153..157
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 207
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 251
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 278
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 366
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 368
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 371
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 400
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
SQ SEQUENCE 458 AA; 50656 MW; 937FF89B4FDCCD71 CRC64;
MRTVPASTFS HLKVKSYALI PNIPYLGRES RSCLHFTTSP GLLTSMWATR RMASINVSSS
AALTFELIAR CSTTRARASN LTLPHGPVQL PMFMPVATQA SLKGLTPEQL EETGCRLCLN
NTYHLGLKPG QDVLAAVGGA HKLQGWNHNI LTDSGGFQMV SLLKLANITE EGVRFLSPHD
GSPMLLTPEH SISLQNTIGS DIIMQLDDVL VTTSPDKERM REAMERSVRW LDRCIAAHQN
PTTQNLFCII QGGLDLEMRR ECCRQMLARD TPGIAIGGLS GGEAKADYCR VVRTCTEMLP
DLKPRYVMGI GYPEDLVVSV ALGADMFDCV WPTRTARFGN AITKHGVLNI RNLKYATDFG
PIEEGCGCIC CREGGLGITR AFINHNTAKE TVAAHLLTIH NVWYQLELMR NVRQAIIEDR
YPDFVRQFFG NLYDSDKTKF PEWAVEALRG VGVDLIDG
//
