ID C3ZU89_BRAFL Unreviewed; 530 AA.
AC C3ZU89;
DT 28-JUL-2009, integrated into UniProtKB/TrEMBL.
DT 28-JUL-2009, sequence version 1.
DT 27-MAR-2024, entry version 76.
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=BRAFLDRAFT_87359 {ECO:0000313|EMBL:EEN43975.1};
OS Branchiostoma floridae (Florida lancelet) (Amphioxus).
OC Eukaryota; Metazoa; Chordata; Cephalochordata; Leptocardii; Amphioxiformes;
OC Branchiostomatidae; Branchiostoma.
OX NCBI_TaxID=7739;
RN [1] {ECO:0000313|EMBL:EEN43975.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=S238N-H82 {ECO:0000313|EMBL:EEN43975.1};
RC TISSUE=Testes {ECO:0000313|EMBL:EEN43975.1};
RX PubMed=18563158; DOI=10.1038/nature06967;
RG US DOE Joint Genome Institute (JGI-PGF);
RA Putnam N.H., Butts T., Ferrier D.E.K., Furlong R.F., Hellsten U.,
RA Kawashima T., Robinson-Rechavi M., Shoguchi E., Terry A., Yu J.-K.,
RA Benito-Gutierrez E.L., Dubchak I., Garcia-Fernandez J., Gibson-Brown J.J.,
RA Grigoriev I.V., Horton A.C., de Jong P.J., Jurka J., Kapitonov V.V.,
RA Kohara Y., Kuroki Y., Lindquist E., Lucas S., Osoegawa K., Pennacchio L.A.,
RA Salamov A.A., Satou Y., Sauka-Spengler T., Schmutz J., Shin-I T.,
RA Toyoda A., Bronner-Fraser M., Fujiyama A., Holland L.Z., Holland P.W.H.,
RA Satoh N., Rokhsar D.S.;
RT "The amphioxus genome and the evolution of the chordate karyotype.";
RL Nature 453:1064-1071(2008).
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|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; GG666681; EEN43975.1; -; Genomic_DNA.
DR RefSeq; XP_002587964.1; XM_002587918.1.
DR AlphaFoldDB; C3ZU89; -.
DR STRING; 7739.C3ZU89; -.
DR eggNOG; KOG2386; Eukaryota.
DR InParanoid; C3ZU89; -.
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; IBA:GO_Central.
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; IBA:GO_Central.
DR GO; GO:0016311; P:dephosphorylation; IEA:InterPro.
DR CDD; cd17664; Mce1_N; 1.
DR Gene3D; 3.30.470.30; DNA ligase/mRNA capping enzyme; 2.
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; 4.
DR SUPFAM; SSF52799; (Phosphotyrosine protein) phosphatases II; 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|ARBA:ARBA00023134, ECO:0000256|PIRNR:PIRNR036958};
KW 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|ARBA:ARBA00022695,
KW ECO:0000256|PIRNR:PIRNR036958}; Nucleus {ECO:0000256|PIRNR:PIRNR036958};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR036958}.
FT DOMAIN 102..159
FT /note="Tyrosine specific protein phosphatases"
FT /evidence="ECO:0000259|PROSITE:PS50056"
FT REGION 177..218
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 480..530
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 201..215
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 495..510
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 124
FT /note="Phosphocysteine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-1"
FT BINDING 348..350
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 420..425
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
SQ SEQUENCE 530 AA; 60019 MW; 58644716C4489286 CRC64;
MAVPPRWLNC PRKGQLVAEK FLPFKTPLGP RYDDQVPEEN RFQWPMLFAY VNGMGAKMGL
VIDLTNTNRF YNKEQEVERN GVKHVKLQCR GHGETPNEEQ TSAFVNLCAN WTARNPTDLI
GVHCTHGFNR TGFLIVAYLV EKHSWSVEAA VQAFTVARPP GMYKGHYLEE LFRRYGDADD
APPAPPLPDW CTESDDLDDD GNPTQQPSNG MKGQRAGGTT YKPFMDGLVP GVDTVTDQPR
LRNVQQKVQH MCGWHKQGFP GAQPVSMDRK NLSFLAQKPY KGQPVGECDF SRRLLCIRKE
IEETRDSQAQ AGTLDKSREP FSVRHKPFWD ITMSPKKYVG GRCDDILKWK PPTLNTVDFK
LQIRREGGEG MLVQTKGFLY VGGFEQPIAQ MKVTKDLKKY DGKIVECKFD GATKQWLFLR
ERTDKSFPNS YTTAVAVFES IQNPVTKEIC SVSLPAVFES IQNPVTKEIL FEFITRSRYQ
QHPHPPPGSV HPPHGSSHPP QSSLDSPRGQ KRPLSQGDHL MPPPEKMPKR
//
