ID I0YT96_COCSC Unreviewed; 257 AA.
AC I0YT96;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 24-JAN-2024, entry version 39.
DE RecName: Full=tRNA(His) guanylyltransferase {ECO:0000256|ARBA:ARBA00012511, ECO:0000256|PIRNR:PIRNR028980};
DE EC=2.7.7.79 {ECO:0000256|ARBA:ARBA00012511, ECO:0000256|PIRNR:PIRNR028980};
DE AltName: Full=tRNA-histidine guanylyltransferase {ECO:0000256|PIRNR:PIRNR028980};
GN ORFNames=COCSUDRAFT_37376 {ECO:0000313|EMBL:EIE21615.1};
OS Coccomyxa subellipsoidea (strain C-169) (Green microalga).
OC Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Trebouxiophyceae;
OC Trebouxiophyceae incertae sedis; Elliptochloris clade; Coccomyxa;
OC Coccomyxa subellipsoidea.
OX NCBI_TaxID=574566 {ECO:0000313|EMBL:EIE21615.1, ECO:0000313|Proteomes:UP000007264};
RN [1] {ECO:0000313|EMBL:EIE21615.1, ECO:0000313|Proteomes:UP000007264}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C-169 {ECO:0000313|EMBL:EIE21615.1,
RC ECO:0000313|Proteomes:UP000007264};
RX PubMed=22630137; DOI=10.1186/gb-2012-13-5-r39;
RA Blanc G., Agarkova I., Grimwood J., Kuo A., Brueggeman A., Dunigan D.,
RA Gurnon J., Ladunga I., Lindquist E., Lucas S., Pangilinan J., Proschold T.,
RA Salamov A., Schmutz J., Weeks D., Yamada T., Claverie J.M., Grigoriev I.,
RA Van Etten J., Lomsadze A., Borodovsky M.;
RT "The genome of the polar eukaryotic microalga coccomyxa subellipsoidea
RT reveals traits of cold adaptation.";
RL Genome Biol. 13:R39-R39(2012).
CC -!- FUNCTION: Adds a GMP to the 5'-end of tRNA(His) after transcription and
CC RNase P cleavage. {ECO:0000256|PIRNR:PIRNR028980}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end ribonucleotide-tRNA(His) + ATP + GTP + H2O = a 5'-end
CC phospho-guanosine-ribonucleotide-tRNA(His) + AMP + 2 diphosphate +
CC H(+); Xref=Rhea:RHEA:54564, Rhea:RHEA-COMP:14193, Rhea:RHEA-
CC COMP:14917, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:37565, ChEBI:CHEBI:138282,
CC ChEBI:CHEBI:141847, ChEBI:CHEBI:456215; EC=2.7.7.79;
CC Evidence={ECO:0000256|PIRNR:PIRNR028980};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000256|PIRSR:PIRSR028980-2};
CC Note=Binds 2 magnesium ions per subunit.
CC {ECO:0000256|PIRSR:PIRSR028980-2};
CC -!- SIMILARITY: Belongs to the tRNA(His) guanylyltransferase family.
CC {ECO:0000256|ARBA:ARBA00010113, ECO:0000256|PIRNR:PIRNR028980}.
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:EIE21615.1}.
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DR EMBL; AGSI01000012; EIE21615.1; -; Genomic_DNA.
DR RefSeq; XP_005646159.1; XM_005646102.1.
DR AlphaFoldDB; I0YT96; -.
DR STRING; 574566.I0YT96; -.
DR GeneID; 17039599; -.
DR KEGG; csl:COCSUDRAFT_37376; -.
DR eggNOG; KOG2721; Eukaryota.
DR OrthoDB; 239198at2759; -.
DR Proteomes; UP000007264; Unassembled WGS sequence.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008193; F:tRNA guanylyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006400; P:tRNA modification; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.70.3000; -; 1.
DR InterPro; IPR025845; Thg1_C_dom.
DR InterPro; IPR024956; tRNAHis_GuaTrfase_cat.
DR InterPro; IPR007537; tRNAHis_GuaTrfase_Thg1.
DR InterPro; IPR038469; tRNAHis_GuaTrfase_Thg1_sf.
DR PANTHER; PTHR12729:SF6; TRNA(HIS) GUANYLYLTRANSFERASE-RELATED; 1.
DR PANTHER; PTHR12729; UNCHARACTERIZED; 1.
DR Pfam; PF04446; Thg1; 1.
DR Pfam; PF14413; Thg1C; 1.
DR PIRSF; PIRSF028980; tRNAHis_guanylyltransferase; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|PIRNR:PIRNR028980};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|PIRNR:PIRNR028980};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR028980};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR028980};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW ECO:0000256|PIRNR:PIRNR028980};
KW Reference proteome {ECO:0000313|Proteomes:UP000007264};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR028980};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW ECO:0000256|PIRNR:PIRNR028980}.
FT DOMAIN 6..135
FT /note="tRNAHis guanylyltransferase catalytic"
FT /evidence="ECO:0000259|Pfam:PF04446"
FT DOMAIN 139..244
FT /note="Thg1 C-terminal"
FT /evidence="ECO:0000259|Pfam:PF14413"
FT BINDING 29
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-2"
FT BINDING 29
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-2"
FT BINDING 30
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-2"
FT BINDING 75..76
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-1"
FT BINDING 76
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-2"
FT BINDING 76
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000256|PIRSR:PIRSR028980-2"
SQ SEQUENCE 257 AA; 29908 MW; 4E5DA35739A7B482 CRC64;
MAKSRFEYVK QFELEDPLLP HCWIVIRLDG KGFTRFSELH NFKKPNDEQA LRLMNRCAVE
VLEAFPDIRI AFGESDEYSF VFSKTCKIYG RRSSKLVSLV TSCFSGNYVR WWPEHFPSQP
LLCTPIFDGR AVCYPTDHIL RHYLAWRQAD THINNQYNTC FWALVHSGKS RTEAQDHLKG
TQTAYKNELL FSEFGIKYGL LPVMFRKGSV VTRSRRQKTV KHAEDGTAVQ REGGEVTVTH
EDIIDDAFWE TRPDILM
//
