ID A0A177CAQ6_9PLEO Unreviewed; 407 AA.
AC A0A177CAQ6;
DT 07-SEP-2016, integrated into UniProtKB/TrEMBL.
DT 07-SEP-2016, sequence version 1.
DT 24-JAN-2024, entry version 31.
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=CC84DRAFT_1166026 {ECO:0000313|EMBL:OAG03868.1};
OS Paraphaeosphaeria sporulosa.
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Dothideomycetes;
OC Pleosporomycetidae; Pleosporales; Massarineae; Didymosphaeriaceae;
OC Paraphaeosphaeria.
OX NCBI_TaxID=1460663 {ECO:0000313|EMBL:OAG03868.1, ECO:0000313|Proteomes:UP000077069};
RN [1] {ECO:0000313|EMBL:OAG03868.1, ECO:0000313|Proteomes:UP000077069}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AP3s5-JAC2a {ECO:0000313|EMBL:OAG03868.1,
RC ECO:0000313|Proteomes:UP000077069};
RG DOE Joint Genome Institute;
RA Zeiner C.A., Purvine S.O., Zink E.M., Wu S., Pasa-Tolic L., Chaput D.L.,
RA Haridas S., Grigoriev I.V., Santelli C.M., Hansel C.M.;
RT "Comparative analysis of secretome profiles of manganese(II)-oxidizing
RT ascomycete fungi.";
RL Submitted (MAY-2016) 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; KV441554; OAG03868.1; -; Genomic_DNA.
DR RefSeq; XP_018034233.1; XM_018178858.1.
DR AlphaFoldDB; A0A177CAQ6; -.
DR STRING; 1460663.A0A177CAQ6; -.
DR GeneID; 28762344; -.
DR InParanoid; A0A177CAQ6; -.
DR OrthoDB; 167782at2759; -.
DR Proteomes; UP000077069; 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:UP000077069};
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 22..382
FT /note="tRNA-guanine(15) transglycosylase-like"
FT /evidence="ECO:0000259|Pfam:PF01702"
FT REGION 256..262
FT /note="RNA binding"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT REGION 280..284
FT /note="RNA binding; important for wobble base 34
FT recognition"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 100
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT ACT_SITE 275
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 100..104
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 154
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 198
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 225
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 313
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 315
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 318
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
FT BINDING 350
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_03218"
SQ SEQUENCE 407 AA; 44693 MW; B7A55B45DCD5BB4A CRC64;
MAPVPMPSAL SFELLGKCSV TKARAATLHL PHGPVPLPIF MPVATQASLK GLTPEQLEEQ
GCRLCLNNTY HLGLKPGQAT LDAIGGAHRF QSWPHNILTD SGGFQMVSLL KLAQVTEEGV
RFLSPHDGSP MLLTPEHSIS LQNSIGSDII MQLDDVIVTT SPDLARMKEA MERSVRWLDR
CIQAHKYPER QNLFCIIQGG LDLDLRRECT AEMVARDTPG IAIGGLSGGE AKDEYCKVVD
TCTSLLPEKK PRYVMGVGYP EDLVVSVALG ADMFDCVWPT RTARFGNAIT ARGVLNLRNA
VYSTDFGPIE EGCQCTCCRS PEDGGLSITR AYIYHTTAKE TAGAHLLTMH NVHYQLNLMR
LVREAILEDR YPAFLRSFFA KLYDDKSKYP EWAVGALKGV GVDLLSD
//
