ID A0A0N5CRF0_THECL Unreviewed; 472 AA.
AC A0A0N5CRF0;
DT 09-DEC-2015, integrated into UniProtKB/TrEMBL.
DT 09-DEC-2015, sequence version 1.
DT 27-MAR-2024, entry version 37.
DE RecName: Full=mRNA-capping enzyme {ECO:0000256|PIRNR:PIRNR036958};
DE Includes:
DE RecName: Full=mRNA 5'-triphosphate monophosphatase {ECO:0000256|PIRNR:PIRNR036958};
DE EC=3.6.1.74 {ECO:0000256|PIRNR:PIRNR036958};
DE AltName: Full=mRNA 5'-phosphatase {ECO:0000256|PIRNR:PIRNR036958};
DE Includes:
DE RecName: Full=mRNA guanylyltransferase {ECO:0000256|PIRNR:PIRNR036958};
DE EC=2.7.7.50 {ECO:0000256|PIRNR:PIRNR036958};
DE AltName: Full=GTP--RNA guanylyltransferase {ECO:0000256|PIRNR:PIRNR036958};
DE Short=GTase {ECO:0000256|PIRNR:PIRNR036958};
GN ORFNames=TCLT_LOCUS2801 {ECO:0000313|EMBL:VDM98945.1};
OS Thelazia callipaeda (Oriental eyeworm) (Parasitic nematode).
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Spirurina; Spiruromorpha; Thelazioidea; Thelaziidae; Thelazia.
OX NCBI_TaxID=103827 {ECO:0000313|Proteomes:UP000046394, ECO:0000313|WBParaSite:TCLT_0000280001-mRNA-1};
RN [1] {ECO:0000313|WBParaSite:TCLT_0000280001-mRNA-1}
RP IDENTIFICATION.
RG WormBaseParasite;
RL Submitted (FEB-2017) to UniProtKB.
RN [2] {ECO:0000313|EMBL:VDM98945.1, ECO:0000313|Proteomes:UP000276776}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RG Pathogen Informatics;
RL Submitted (NOV-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Bifunctional mRNA-capping enzyme exhibiting RNA 5'-
CC triphosphate monophosphatase activity in the N-terminal part and mRNA
CC guanylyltransferase activity in the C-terminal part. Catalyzes the
CC first two steps of cap formation: by removing the gamma-phosphate from
CC the 5'-triphosphate end of nascent mRNA to yield a diphosphate end, and
CC by transferring the GMP moiety of GTP to the 5'-diphosphate terminus of
CC RNA via a covalent enzyme-GMP reaction intermediate.
CC {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end diphospho-ribonucleoside in mRNA + GTP + H(+) = a 5'-
CC end (5'-triphosphoguanosine)-(ribonucleoside) in mRNA + diphosphate;
CC Xref=Rhea:RHEA:67012, Rhea:RHEA-COMP:17165, Rhea:RHEA-COMP:17166,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:33019, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:167616, ChEBI:CHEBI:167617; EC=2.7.7.50;
CC Evidence={ECO:0000256|PIRNR:PIRNR036958};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end triphospho-ribonucleoside in mRNA + H2O = a 5'-end
CC diphospho-ribonucleoside in mRNA + H(+) + phosphate;
CC Xref=Rhea:RHEA:67004, Rhea:RHEA-COMP:17164, Rhea:RHEA-COMP:17165,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:167616, ChEBI:CHEBI:167618; EC=3.6.1.74;
CC Evidence={ECO:0000256|PIRNR:PIRNR036958};
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the eukaryotic GTase
CC family. {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the non-receptor
CC class of the protein-tyrosine phosphatase family.
CC {ECO:0000256|PIRNR:PIRNR036958}.
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DR EMBL; UYYF01000709; VDM98945.1; -; Genomic_DNA.
DR STRING; 103827.A0A0N5CRF0; -.
DR WBParaSite; TCLT_0000280001-mRNA-1; TCLT_0000280001-mRNA-1; TCLT_0000280001.
DR OMA; DTRVYDK; -.
DR Proteomes; UP000046394; Unplaced.
DR Proteomes; UP000276776; Unassembled WGS sequence.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0140818; F:mRNA 5'-phosphatase activity; IEA:InterPro.
DR GO; GO:0004484; F:mRNA guanylyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004651; F:polynucleotide 5'-phosphatase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008138; F:protein tyrosine/serine/threonine phosphatase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006370; P:7-methylguanosine mRNA capping; IEA:UniProtKB-UniRule.
DR GO; GO:0016311; P:dephosphorylation; IEA:InterPro.
DR CDD; cd07895; Adenylation_mRNA_capping; 1.
DR Gene3D; 3.30.470.30; DNA ligase/mRNA capping enzyme; 1.
DR Gene3D; 3.90.190.10; Protein tyrosine phosphatase superfamily; 1.
DR InterPro; IPR000340; Dual-sp_phosphatase_cat-dom.
DR InterPro; IPR017074; mRNA_cap_enz_bifunc.
DR InterPro; IPR001339; mRNA_cap_enzyme_adenylation.
DR InterPro; IPR029021; Prot-tyrosine_phosphatase-like.
DR InterPro; IPR016130; Tyr_Pase_AS.
DR InterPro; IPR000387; Tyr_Pase_dom.
DR InterPro; IPR020422; TYR_PHOSPHATASE_DUAL_dom.
DR PANTHER; PTHR10367; MRNA-CAPPING ENZYME; 1.
DR PANTHER; PTHR10367:SF17; MRNA-CAPPING ENZYME; 1.
DR Pfam; PF00782; DSPc; 1.
DR Pfam; PF01331; mRNA_cap_enzyme; 1.
DR PIRSF; PIRSF036958; mRNA_capping_HCE; 1.
DR SUPFAM; SSF52799; (Phosphotyrosine protein) phosphatases II; 1.
DR SUPFAM; SSF56091; DNA ligase/mRNA capping enzyme, catalytic domain; 1.
DR PROSITE; PS00383; TYR_PHOSPHATASE_1; 1.
DR PROSITE; PS50056; TYR_PHOSPHATASE_2; 1.
DR PROSITE; PS50054; TYR_PHOSPHATASE_DUAL; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|PIRNR:PIRNR036958};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|PIRNR:PIRNR036958};
KW mRNA capping {ECO:0000256|PIRNR:PIRNR036958};
KW mRNA processing {ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW ECO:0000256|PIRNR:PIRNR036958}; Nucleus {ECO:0000256|PIRNR:PIRNR036958};
KW Protein phosphatase {ECO:0000256|ARBA:ARBA00022912};
KW Reference proteome {ECO:0000313|Proteomes:UP000276776};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR036958}.
FT DOMAIN 48..203
FT /note="Tyrosine-protein phosphatase"
FT /evidence="ECO:0000259|PROSITE:PS50054"
FT DOMAIN 121..181
FT /note="Tyrosine specific protein phosphatases"
FT /evidence="ECO:0000259|PROSITE:PS50056"
FT ACT_SITE 143
FT /note="Phosphocysteine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-1"
FT ACT_SITE 309
FT /note="N6-GMP-lysine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-2"
FT BINDING 314
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 330
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 357..359
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
SQ SEQUENCE 472 AA; 54807 MW; 50243EA5731E7997 CRC64;
MASDDESSTS ELKEKVQLGL PDRWLYCPSL GCVIAKHFLP FKTPLCKLYD EKIEKKYQFH
PRDVFSYKLQ GAEPGARIGL WIDLTKTDRY YSKKEIEKRN CLYKKLPMKG HGETPSIADT
ENFCRIVRSF LHTSPKDIVA VHCTHGFNRT GFLIAAYLAS AMDWAIDAAI YTFAQMRPNG
IYKQFYLDEL MRRYGDEDDK IEAPPRPAWE SGPVYDDKML FDDKDAIVAD VKNADDSSAV
VPKFMDGAVP SVKYVSDPMM NTILQTKIRT MCNYKKDGFP GSQPVSMEKS PERDNMRFLL
ENQYMVSWKA DGMRYMVLID DENSIFAFDR DNRVFKICDV TFPHRKENRH IQNTLIDCEM
IIEKVKDEFG NVNDVPRLLI YDIIKFEGQN VGDCDFRTRL LCIRKELIGP RIEAIKNGRI
KREREPISIR MKDFWELEAV KKLFDEKFTR NVGHEIDGLI FQPVTEVCLF LV
//
