ID A0A2A4JQW3_HELVI Unreviewed; 588 AA.
AC A0A2A4JQW3;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 28.
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=B5V51_14386 {ECO:0000313|EMBL:PCG73800.1};
OS Heliothis virescens (Tobacco budworm moth).
OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota;
OC Neoptera; Endopterygota; Lepidoptera; Glossata; Ditrysia; Noctuoidea;
OC Noctuidae; Heliothinae; Heliothis.
OX NCBI_TaxID=7102 {ECO:0000313|EMBL:PCG73800.1, ECO:0000313|Proteomes:UP000218220};
RN [1] {ECO:0000313|EMBL:PCG73800.1, ECO:0000313|Proteomes:UP000218220}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HvINT- {ECO:0000313|EMBL:PCG73800.1};
RC TISSUE=Whole body {ECO:0000313|EMBL:PCG73800.1};
RA Fritz M.L., Deyonke A.M., Papanicolaou A., Micinski S., Westbrook J.,
RA Gould F.;
RT "Contemporary evolution of a Lepidopteran species, Heliothis virescens, in
RT response to modern agricultural practices.";
RL Submitted (SEP-2017) 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|ARBA:ARBA00024520};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67013;
CC Evidence={ECO:0000256|ARBA:ARBA00024520};
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|ARBA:ARBA00004123,
CC 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}.
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:PCG73800.1}.
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DR EMBL; NWSH01000867; PCG73800.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2A4JQW3; -.
DR STRING; 7102.A0A2A4JQW3; -.
DR Proteomes; UP000218220; 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 CDD; cd17664; Mce1_N; 1.
DR Gene3D; 3.30.1490.430; -; 1.
DR Gene3D; 3.30.470.30; DNA ligase/mRNA capping enzyme; 1.
DR Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 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; IPR013846; mRNA_cap_enzyme_C.
DR InterPro; IPR012340; NA-bd_OB-fold.
DR InterPro; IPR029021; Prot-tyrosine_phosphatase-like.
DR InterPro; IPR016130; Tyr_Pase_AS.
DR InterPro; IPR000387; Tyr_Pase_dom.
DR PANTHER; PTHR10367; MRNA-CAPPING ENZYME; 1.
DR PANTHER; PTHR10367:SF17; MRNA-CAPPING ENZYME; 1.
DR Pfam; PF00782; DSPc; 1.
DR Pfam; PF03919; mRNA_cap_C; 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 SUPFAM; SSF50249; Nucleic acid-binding proteins; 1.
DR PROSITE; PS00383; TYR_PHOSPHATASE_1; 1.
DR PROSITE; PS50056; TYR_PHOSPHATASE_2; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|PIRNR:PIRNR036958, ECO:0000256|PIRSR:PIRSR036958-
KW 3}; Hydrolase {ECO:0000256|PIRNR:PIRNR036958};
KW mRNA capping {ECO:0000256|ARBA:ARBA00023042,
KW ECO:0000256|PIRNR:PIRNR036958};
KW mRNA processing {ECO:0000256|ARBA:ARBA00022664,
KW ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotidyltransferase {ECO:0000256|PIRNR:PIRNR036958};
KW Nucleus {ECO:0000256|PIRNR:PIRNR036958};
KW Reference proteome {ECO:0000313|Proteomes:UP000218220};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR036958}.
FT DOMAIN 108..175
FT /note="Tyrosine specific protein phosphatases"
FT /evidence="ECO:0000259|PROSITE:PS50056"
FT REGION 201..236
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 130
FT /note="Phosphocysteine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-1"
FT ACT_SITE 298
FT /note="N6-GMP-lysine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-2"
FT BINDING 303
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 319
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 347..349
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 464..466
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 534..539
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
SQ SEQUENCE 588 AA; 68434 MW; 5FD1843656E57791 CRC64;
MSQRDPGPIP NRWLRCPRKA TGLVADKFMA FKTPLGSQFN DKVPEENRFT PSMLFVYMKS
MKIQLGLWID LTNTSRFYNK AEVEEAGCKY VKMQCRGHGE TPSPEQTREF INLVARFISQ
KPLEYIGVHC THGFNRTGFL LVSYMVEHLD CSVQAAINEF ARMRPPGIYK QDYLQELFRR
YDEVELTPAA PALPDWCHEE EEDFDDDVPS NSTNTSSSNQ RKHKGKGRRE TTHKKATFMP
GVRGVEPFDT QPRLSEVQKK AQQFCKWNTT GFPGSQPVSM DMVNLRKLHE KPYRVSWKAD
GVRYMMLIDG EGEVYMLDRD NCVFKVFGLR FPHRKDLRRH LKNTLLDGEM VIDKVDNKDI
PRYLCYDVIS FEGTDTGRME FYPTRLSYIE NEIVNPRHQA MKEGKIKKEQ EPFSIRLKQF
WELPMARQLL GEKFAKTLSH EPDGLIFQPS KERYIAGPCE DVLKWKPSHM NSVDFKLKIV
TQGGQGILPT KVGYLYVGKM DQPFASMKVT KDIKHLDNKI IECTFENGRW VFMRERTDKS
FPNSFNTASS VCESIKDPVT KEILLDYIDN HRFHDDSDMM PPPKRMRR
//