ID A8WWH8_CAEBR Unreviewed; 649 AA.
AC A8WWH8;
DT 15-JAN-2008, integrated into UniProtKB/TrEMBL.
DT 16-DEC-2008, sequence version 2.
DT 27-MAR-2024, entry version 99.
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 Name=cel-1 {ECO:0000313|WormBase:CBG03700};
GN Synonyms=Cbr-cel-1 {ECO:0000313|EMBL:CAP24550.2};
GN ORFNames=CBG03700 {ECO:0000313|WormBase:CBG03700}, CBG_03700
GN {ECO:0000313|EMBL:CAP24550.2};
OS Caenorhabditis briggsae.
OC Eukaryota; Metazoa; Ecdysozoa; Nematoda; Chromadorea; Rhabditida;
OC Rhabditina; Rhabditomorpha; Rhabditoidea; Rhabditidae; Peloderinae;
OC Caenorhabditis.
OX NCBI_TaxID=6238 {ECO:0000313|EMBL:CAP24550.2, ECO:0000313|Proteomes:UP000008549};
RN [1] {ECO:0000313|EMBL:CAP24550.2, ECO:0000313|Proteomes:UP000008549}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AF16 {ECO:0000313|EMBL:CAP24550.2,
RC ECO:0000313|Proteomes:UP000008549};
RX PubMed=14624247; DOI=10.1371/journal.pbio.0000045;
RA Stein L.D., Bao Z., Blasiar D., Blumenthal T., Brent M.R., Chen N.,
RA Chinwalla A., Clarke L., Clee C., Coghlan A., Coulson A., D'Eustachio P.,
RA Fitch D.H., Fulton L.A., Fulton R.E., Griffiths-Jones S., Harris T.W.,
RA Hillier L.W., Kamath R., Kuwabara P.E., Mardis E.R., Marra M.A.,
RA Miner T.L., Minx P., Mullikin J.C., Plumb R.W., Rogers J., Schein J.E.,
RA Sohrmann M., Spieth J., Stajich J.E., Wei C., Willey D., Wilson R.K.,
RA Durbin R., Waterston R.H.;
RT "The genome sequence of Caenorhabditis briggsae: a platform for comparative
RT genomics.";
RL PLoS Biol. 1:166-192(2003).
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; HE600990; CAP24550.2; -; Genomic_DNA.
DR AlphaFoldDB; A8WWH8; -.
DR STRING; 6238.A8WWH8; -.
DR WormBase; CBG03700; CBP14803; WBGene00026504; Cbr-cel-1.
DR eggNOG; KOG2386; Eukaryota.
DR HOGENOM; CLU_021710_3_0_1; -.
DR InParanoid; A8WWH8; -.
DR OMA; FWDIWMS; -.
DR OrthoDB; 49440at2759; -.
DR Proteomes; UP000008549; 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; 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; cd07895; Adenylation_mRNA_capping; 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|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 Reference proteome {ECO:0000313|Proteomes:UP000008549};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR036958}.
FT DOMAIN 114..181
FT /note="Tyrosine specific protein phosphatases"
FT /evidence="ECO:0000259|PROSITE:PS50056"
FT REGION 195..223
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 195..211
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 136
FT /note="Phosphocysteine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-1"
FT ACT_SITE 344
FT /note="N6-GMP-lysine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-2"
FT BINDING 349
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 364
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 390..392
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 510..512
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 586..591
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
SQ SEQUENCE 649 AA; 74862 MW; D45BDE49FE4F7187 CRC64;
MAPKGPTPDK ARLGLPDRWL HCPKTGTIVN DLFFPFKTPL CKMYDQQIPE RKWKFSPADV
FSSPFLNGRR IGLWIDLTNT DRYYFPDEVT EKSCRYVKMA MAGRGMSPTK EETDTFIKIV
TEFHEKNADL LVGLHCTHGF NRTGFLIAAY LFQVNEYGLD AAIREFAENR QGGIYKQDYI
DDLYTRYEPL EDERVMAPEK PDWEREHHYT DGSNQNNNGT ASSSQANFAN GFPLLISYFL
SKTYQYSGNG NQSASSSNGK NNGAGVKQFM DGLVKGARHV EDPGKKSILQ AKVLIALNEI
HEMPFQIQEL CKWSKQGFPG LQPVSLSRDN INCFEKEPYM VSWKADGMRY IVYINDGEVY
AFDRDNEVFE IDNLDFVNND GSPLKGTVVD TEVIIDKVEE HGILRDHPRM LIYDVMRIGG
FNVMKEPFSK RFKIISTEII DKRDAGFRSG KLRRERQTMS VRRKDFYVLE TTWKLFERKF
VKNVGHEIDG LIFQPTDRQY ETGRCDKVLK WKPPSHNSVD FLLKITKVCR EGMLPEWTGH
LFVQNQREPF GSMKATASLR QYDGKIIECT LKVNERGQAT EWVFMRERTD KSLPNGLRTA
QNVLDTMLRP VTEEYLLGSI NHALRVLDAR KREHLSHEGH SDPKRPRVQ
//
